abstract sum(int x, int y){ } 25. Fully solved examples with detailed answer description, explanation are given and it would be easy to understand. What restrictions are placed on the location of a package statement within a source code file?Answer: A package statement must appear as the first line in a source code file (eliminating blank lines and comments). Which of the following is not the Java primitive type A) Break A) i-true, ii-true, iii-false, iv-true C) java.sql. Java Programming Online Test – Multiple Choice Questions and Answers 1. What is the priority of the Garbage collector thread of JDK? 47. D) all methods defined in that interface, 8. 7. A) i-false, ii-false is a feature that allows one interface to be used for a general class of actions. By using ………………. A) The type of code generated by a Java compiler, B) The type of code generated by a Java Virtual Machine, C) It is another name for Java source file, D) It is the code written within the instance methods of a class. A package is a collection of value. For example, consider the following: for(;;). public static void main(String args[]){ 4. A) i, ii & iii are true If we want to rethrow checked exceptionfrom a catch block we need to declare that exception. C) executeUpdate() 1. In such a case, we declare a class as abstract. D) none Answers: When a programming class implements an interface, it must provide behavior for 10. A) 0 13. C) 5 What is the default return type of main(). A) 1-true, 2. true, 3. true, 1. iii) double[]marks; iv) counter int[]; 19) Which of the following methods belong to the String class? What are abstract methods in java?Answer: An abstract method is a method which doesn’t have anybody. B) i, iii & iv are true D. return; 9. i) Java beans slow down the software development process. The ……………… and ……………….. classes are abstract classes that support reading and writing of byte streams. Which of the following control expressions are valid for an if statement? 7. a package statement must be the first statement in the source file. The command javac is used to C) A subclass of an abstract class must define the abstract methods. abstract show(); D) i-true, ii-true, 8. All the common features of vehicles are declared as abstract methods in vehicle class. A) JDBC calls, network protocol 30. Int can be assigned directly to long .Automatic type conversion takes place if int is assigned to longbecause long is larger datatype than int.Widening Conversion comes under Automatic type conversion. a) Boolean. B) Converts a java ….into bytecode }, A) The class header is not defined properly. 1) In the same class2) In the same package subclass3) In the same package nonsubclass4) In the different package subclass5) In the different package nonsubclass. B) compare To ( ) A) classes C) an assignment 7. 10. A) Sun Microsystems iii) runs only in Windows Operating System State true or false for Java Program. Continue statement can be used, 1) Which of the following statement is/are true? C) byte code 2. D) init method At that moment we make vehicle class abstract. D) Java, HTML 20) A. i) default ii) abstract iii) protected iv) interface v) public. Java Programming Pdf Notes - Java Pdf Notes - Java Programming Notes Pdf - Java Notes Pdf file to download are listed below please check it Note: Browse latest Java Interview Questions and JAVA Tutorial Videos. 12. D) java.lang A) switch, if The keywords reserved but used in the initial version of Java are. 3. 57. The keywords reserved but used in the initial version of Java are. ii) An abstract class has implementations of all methods defined inside it. 1. Prepared Statement object in JDBC used to execute……….. queries. Which of the following statements correctly describes an interface? Command to execute compiled java program is C) switch D) pre incrementation. Can we use catch statement for checked exceptions?Answer: If there is no chance of raising an exception in our code then we can’t declare catch block for handlingchecked exceptions. Explain method overloading?Answer: When a Java program contains more than one methods with the same name but different properties, then it is called method overloading. C) class, RemoteInterface A) Executable 2. B) match 1. Can we define a package statement after the import statement in java?Answer: We can’t define a package statement after the import statement in java. 13. what value is a variable of the String type automatically initialized?Answer: The default value of a String type is null. A) Java is object …… interpreted When the operators are having the same priority, they are evaluated from …………….. …………. D) i-true, ii-true, 8. 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What is the error in the following code? Can we rethrow the same exception from catch handler?Answer: Yes, we can rethrow the same exception from our catch handler. Java is used by approx 10 Million developers worldwide to develop applications for 15 Billion devices supporting Java. 8. These frequently asked sample questions on Java are given with correct choice of answer that you can check instantly. A) i-false, ii-false 20. operators which concatenates two strings. All Exception classes are defined in java.lang. 2) Write a code in java which take 10 numbers store it in a combo box and display the greatest one. 5. do{y–; x++; y-=2; y=z; z++} while (y>1 && z<10); data type. A) if A) i-false, ii-false 6. What are the access modifiers?Answer: Java provides three access controls such as public, private and protected access modifier. ii) Java Servlets do not have built-in multithreading feature. 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Which of the following represent legal flow control statements? iii) Decreasing maintenance cost iv) High vulnerability 3. D) Generate java documentation, 3. An abstract method is declared withkeyword abstract and semicolon in place of the method body.Signature : public abstract void ();Ex : public abstract void get details();It is the responsibility of subclass to provide implementation to an abstract method defined in the abstract class. 2. C) Inheritance, object Which of the following is true about Java. B) compile a java program If m and n are int type variables, what will be the result of the expression m%n when m=-14 and n=-3? Question 4. C) 1- false, 2- false, 3- false 3. 5. Here you can check Java training details and JAVA Training Videos for self learning. D) an interface that defines methods to read primitive data types. A) debug a java program ( ). B) The code will compile correctly but will give a runtime exception C) Either A or B B) Method display( ) should be declared as static 48. A) java.math D) Persistence, serialization. What is the file extension of a compiled java program? What are the advantages of Exception handling in java?Answer:1) Separating normal code from exception handling code to avoid abnormal termination of the program.2) Categorizing into different types of Exceptions so that rather than handling all exceptions withException root class we can handle with specific exceptions. 10.C) i-false, ii-true, iii-false, iv-false. What are the part of executing a Java program and their purposes? State whether the following statement is true or false for EJB. The class at the top of exception class hierarchy is …………………….. C) Java Web Server D) All of them. is used for initializing the value to the string object. The default package that is implicitly called in a java program is …………. 1. D) Both a and b, 6. C) byte code C) hardware …………………… of a remotely accessible object must implement ……………. If we use system.exit(0) in try statementfinally block if present will not be executed. A) Dynamic content ii) applets are used for networking 11. 12) A. NULL D) Neither A nor B, 8. B) Debug a java program 1. C) a-1, b-2, c-3, d-4 4. C) Java doc B) any methods in a class 8) D. i-False, ii-False B) local D) Java is not robust. 3) Constant names are usually nouns.Ex:MAX_VALUE, MIN_VALUE, MAX_PRIORITY, MIN_PRIORITY. public class MyClass{ 250+ Questions: Yes, more than 250 questions with detailed answers covering most important areas of core java interview such as core java concepts, strings, collection framework, multi-threading, concurrency, exception handling etc. Explain Java Coding standards for Methods?Answer: 1) Method names should start with small letters.2) Method names are usually verbs3) If a method contains multiple words, every inner word should start with an uppercase letter.Ex : toString()4) Method name must be combination of verb and nounEx : getCarName(),getCarNumber(). 1. Subtract two matrices. D) Program exit, 4. C) incrementation D) Test class should be declared as public, 3. ii) The default can is always required in the switch selection structure. 8. This raises a compile-time error if we try to handle checked exceptions when there isno possibility of causing an exception. Java programs are A) Faster than others B) Platform independent C) Not reusable D) Not scalable. 46. i) Data members of an interface are by default final Matrix Questions- Download C Programming Questions and Answers. What is an error in Java?Answer: Error is the subclass of Throwable class in java. 1) What is Java? B) Float A) Break Method show() is not implemented in Display company, 38. What is a native method?Answer: A native method is a method that is applied in a language other than Java. D) None of the above. A) 1 *, 3. 10.C) hardware, 1. A) java What is JVM? 7) C. Class 18. i) The modulus operator(%) can be used only with integer operands, ii) Declarations can appear anywhere in the body of a Java method. 8) State True or False for the following statements in java. 2. Consider the statement “x=(a>b)?a:b”, then the value of x is 19 if a=19 and b=12, D) none of the above } A).DAT B) return; 37. 2. ii) Two methods cannot have the same name in java. C) throws.java.io.IOException We get the following error. } 16. Questions on Data Types, Variables and Arrays . B) simple method must be used. What is a transient variable?Answer: A transient variable is a variable that may not be serialized. abstract class XY iv) final does not prevent inheritance, A) i-true, ii-true, iii-false, iv-true A) switch, if A) must precede 8. A java program is first ……………. 9. In Java RMI, a stub is located in, D) none of the above 10.B) public void myMethod(int a, int b); 1. 22. A) public void myMethod( ); This type of handling reducesthe code duplication.Note: When we catch more than one exception in a single catch block, catch parameter is implicitly final.We cannot assign any value to catch parameter.Ex : catch(ArrayIndexOutOfBoundsException || ArithmeticException e). C) may precede or succeed 3) A. logical D) 3, 10. 4. 5. } Answers: Explain about Automatic type conversion in java?Answer:Java automatic type conversion is done if the following conditions are met:1) When two types are compatibleEx: int, floatint can be assigned directly to float variable.2) Destination type is larger than source type.Ex: int, long. B) Compiler 3. 1. C) Program won’t run Any class which extends the vehicle will provide its method implementation. What is wrong in the following class definitions? It’s a slightly tricky question. ex: public float add(int a, int b, int c)methods can have multiple arguments. C) Database Using which keyword we can access the value of the instance and class variables of that class inside the method of that class itself. 10. 32. What method is used to specify a container’s layout?Answer: The setLayout() method is used to specify a container’s layout. C) Method compute() in class Room should be declared public Which collection class allows you to access its elements by associating a key with an element’s value, and provides synchronization? 23. 55. What is a class in Java? Method overloading is one of the ways that Java supports …………. Which of the function is used to convert string to Number in java program? case ‘a’; C) There are no header files in Java. 33. 9) Java is designed for ………. C) i-true, ii-false B) 1- true, 2. false, 3. true D) 3 What is the method in java?Answer: It contains the executable body that can be applied to the specific object of the class.The method includes method name, parameters or arguments and return type and a body of executable code.Syntax : type methodName(Argument List){. 5. Answers: i) is a key component of server-side Java development C) i-true, ii-false Write a Java program that will calculate total of calories for every food classes (protein , carbohydrate and fat) and then total up the calories of all the food classes. Java Servlet A) a semicolon B) False In java a ………………….. is a sequence of characters. ; Programming Questions: A lot of programming questions to refresh your skills, these days programming questions are asked a lot in interviews. 1. All rights reserved. C) 1, 2 & 4 B) PERRL 14. By implementing the runnable interface and implementingthe run() method we can create a new thread.Method signature : public void run()Run is the starting point for execution for another thread within our program.Example :public class MyClass implements Runnable {@Overridepublic void run(). abstract class XY i) The public can only be assigned to class, iii) Protected method is never accessible outside the package, iv) Friendly variable may be accessible outside the class, Answers: Following section consists of some important multiple choice questions (mcq) on java programming with answers. What is clipping?Answer: Clipping is the process of confining paint operations to a limited area or shape. 2. System.out.println(y); 6. 45. 3. D) javaw, 7. D) Exception, 3. But there is no such division of access specifiers and access modifiers in java. Byte code is also a ……….. D) none C) HTML, Servlet Explanation are given for understanding. D) Directive Pre-processor D) Loop Close, 7. 10. D) Parameterized, 1. D) Oak programming language. i) Jpanel is a class included in awt package. 15) B. 16) ……. { Methods can be overloaded with a difference only in the type of the return value, D) None of the above An Inner class has access rights for the class which is nesting it and it can access all variables and methods defined in the outer class. 5. Add two matrices. What is a class in Java?Answer: Java encapsulates the codes in various classes which define new data types. Consider the following code: interface Area To execute the java programsIt provides all the tools, executables and binaries required to compile, debug and execute a Java Program The execution part is handled by JVM to provide machine independence. 42. A) i-false, ii-false JVM, or the Java Virtual Machine, is an interpreter which accepts ‘Bytecode’ and executes it. 5. C) A thread can be temporarily suspended from running by using the wait() method. C) ii, iii & iv are true B) inputstream, outputstream What does this RMI stand for? Explain garbage collection in Java? system.out.println(“Number is negative”); A) Number is negative 7. 8. B) nested classes 8. D) depends on the compiler, 3. B) input stream, the output stream 60. Ingres is a …………………… D) None of the above, 7. - 1 value. Any class that contains one or more abstract methods is declared as abstract. 6. Can a for statement loop indefinitely?Answer: Yes, a for statement can loop indefinitely. B) Converts a java program into bytecode Answer: Java encapsulates the codes in various classes which In how many ways we can do exception handling in java?Answer:We can handle exceptions in either of the two ways :1) By specifying a try-catch block where we can catch the exception.2) Declaring a method with throws clause. B) Compiled code }, A) The code will not compile and will give “Duplicate main() method declaration” error { 9. C) ODBC drivers, JDBC drivers D) MouseEvent If a variable is declared FINAL, it must include ……………………. A) pre-increment D) com. Java Multiple Choice Questions 21) What is byte code in the context of Java? D) derived classes, 9. 15) ……… operators are overloaded for string objects? B) Java has replaced the destructor function of C++ 2) Which of the following represent(s) of a hexadecimal number? A) i-false, ii-false Which of the following do not represent legal flow control statements? 4. 4. In Java, …………. 11) C. string B) The yield() method should be enclosed in try ……… catch block. Java Programming MCQ Question with Answer Java Programming MCQ with detailed explanation for interview, entrance and competitive exams. B) 2.3 C) Converts a java program into machine language D) exit(); Can we overload the main method?Answer:Yes, we can overload the main method with syntax as public static void main(String args[]). Separate with commas when we have multiple arguments.thrown in the method are instances of their subclass. default: A class with default modifier can be accessed, 1) In the same class2) In the same package subclass3) In the same package nonsubclass4) In the different package subclass5) In the different package nonsubclass. A) An abstract class cannot be instantiated. In Java variables, if first increment of the variable takes place and then the assignment occurs. What is wrong in the following class definitions? C) objectinputstream, objectoutputstream B) java.awt.AWTEvent 130 Java Interview Questions Answers for 2 to 7 Year. A) 1 & 2 11) B. “The type must be an abstract class to define abstract methods.” Signature; abstract class. A) 0 570 D) All of the above. A) executeQuery() 18) B. ii and iii C) switch We will keep adding more questions and provide this question bank in PDF format, so that you can download them instantly in E-book style. …………… package is used by the compiler itself. It is also a good choice for introducing students to the concept of object-oriented programming which is one of the most popular paradigms in the current days. B) extending one class and implementing one or more interfaces abstract void display( ); A) No error D) either super or this Java Multiple Choice Questions with Answers:-1. It’s a three steps process. A) Java is object-oriented and interpreted B) post-increment A method named myMethod( ) that needs two integer arguments is declared as D) Wrong. B) an identifier 12. B) public void myMethod(int a, int b); D) Long double, 6. system.out.println(“C”); C) subclasses Java Interview Questions. A) The sleep() method should be enclosed in try ……… catch block. i) All the bitwise operators have the same level of precedence in java But when we cannotinstantiate class there is no use in creating a constructor for abstract class. ii) Anonymous classes are mostly used for event handling. D) throws.java.io.InException, 6. is always a reference to the object. 1. 8. Methods can be overloaded with a difference only in the type of the return value. 6. 7. 1. mysql Multiple queries executed in java in single. 17) D. hide() C) Database Explain Java Coding Standards for variables?Answer:1) Variable names should start with small letters.2) Variable names should be nouns3) Short meaningful names are recommended.4) If there are multiple words every inner world should start with Uppercase character.Ex : string,value,empName,MEP salary. class Test B) Drivers, Application C) java.lang.Object D) interpreted, compiled 6. A) executable 2. Check whether two matrices are equal or not. 19. 43. 3) WAP to input any number „n‟ … A) Java commenting B) a-3, b-2, c-4, d-1 6. class Room implements Area When none of these are used, it’s called default access modifier. 2. A) 1 D) Static methods may be declared abstract. +,= 16) B. 'm % n' when m = -14 and n = -3? iii) get out of a loop iv) get out of the system EJB supports transaction processing A) i-false, ii-false A) ItemEvent. A) standard In this Java Interview Questions blog, I am going to list some of the most important Java Interview Questions and Answers which will set you apart in the interview process. A) 2.1 2. 9. 1. 24. case ‘b’; For the execution of DELETE SQL query in JDBC, …………. ………………….is the key to …………………… Which method will a web browser call on a new applet? 6. 7. C) java.awt.event.AWTEvent JAVA Online Test. B) Throwable What is constructor in java?Answer: A constructor is a special method used to initialize objects in the java.we use constructors to initialize all variables in the class when an object is created. Which of the following is not mandatory in a variable declaration? B) java A) Will not compile because the class body is not defined. Match the following. if try block executes with no exceptions then finally is called after try block without executing catch block. Multiply two matrices. class Display extends Print As and when an objectis created it is initialized automatically with the help of constructor in java.We have two types of constructorsDefault ConstructorParameterized Constructor. What happens when we try to compile this class? It’s better visualized in code. 10) The string is defined in ……… namespace. 7. … D) i-true, ii-true, 7. State some situations where exceptions may arise in java?Answer:1) Accessing an element that does not exist in the array.2) Invalid conversion of number to string and string to a number. And it is important because, without it, it is not possible for one thread to modify a shared object while another thread is in the process of using or updating that object’s value. 4. i) int number(); ii) float average[ ]; ……………….. is generated if a button is clicked in AWT. Question 3. 10.D) an interface that defines methods to read primitive data types. Data input is }, B) Wrong. 2. Break 4. 58. The new keyword will, D) Open Database Command (NumberFormatException)3) The invalid casting of class(Class cast Exception)4) Trying to create an object for interface or abstract class(Instantiation Exception). A) two methods defined in that interface 13) A. 13) C. final A) reader, writer A) must precede 10) Which of the following will produce a value of 10 if x=9.7? 13) The …… statement is used to terminate a statement sequence. In the second type, the information written in java after // is ignored by the ………………….. D) Java, HTML, 2. 54. JNTUK B.Tech JP, JAVA Question papers, Answers, important QuestionJAVA PROGRAMMING R13 Regulation B.tech JNTUK-kakinada Old question papers previous question papers download 8) In Java thread to thread, communication is called …. * system.out.println(“B”); i) init( ) of a servlet is called after a client request comes in { i) We cannot use abstract classes to instantiate objects directly. 9. If we don’t declare a class as abstract which contains abstractmethods we get a compile-time error. D) JDBC calls, user call, Answers: Java was developed by the company. B) java.util.Name y= (byte) (x<<2); 8. 10. B) Platform independent 8. 5. ii) Servlets are ultimately converted into JSP These new data types are used to create objects. C) this 4. C) Wrong. C) java.applet 9. B) java.mysql. B) i-false, ii-true D) multiple, 6. 10. File Type PDF Advanced Java Programming Question Bank With Answer. iii) Names of anonymous classes must be unique. i) Increasing productivity ii) Reusability The compiled Java program can run on any ………………… platform having Java Virtual Machine (JVM) installed on it. Method show() should have a return type, C) Wrong. What will be the result of compiling the following code? 4. 14) C. Arrays of arrays D) Not scalable, 2. 3. C) Hardware A) main method 19) E. All of the above system.out.println(“Number is positive”); system.out.println(“Number is negative”); What will be the output if number is equal to 0? The important features of abstract classes are: 1) Abstract classes cannot be instantiated.2) An abstract class contains abstract methods, concrete methods or both.3) Any class which extends abstract class must override all methods of an abstract class.4) An abstract class can contain either 0 or more abstract methods. D) None of the above iv) We may declare abstract static methods. In order to run JSP ……………….. is required. B) ODBC class, network protocol D) Remote Memory Interface Java programs are B) Java is efficient and faster than C C) i-true, ii-true, iii-true, iv-true A) right to left B) left to right Answers to all these Java quiz questions and follow the relevant link to get the deeper knowledge of Java. 4. What happens when we try to compile this class? Which of the following statements about abstract methods/classes in Java is true? 5. B) A Boolean expression B) java.lang An applet extend which class? 2. How Are Observer And Observable Used? abstract class print Native-protocol pure Java converts ……….. into the ………… used by DBMSs directly. { What is the right data type to represent a price in Java? 200 Top Real Time Pega PPRC Interview Questions and Answers, 100 Top ADO.Net Multiple Choice Questions and Answers, 100 Top Behaviour Multiple Choice Questions and Answers, 100 Top Computer Hardware Multiple Choice Questions Answers, 120 Latest Selenium Hybrid Framework Interview Questions And Answers, 125 Top C Programming Multiple Choice Questions and Answers, 125 Top C# Interview Questions Dot Net Tricks. Method overloading is one of the ways that Java supports …………. What is the Vector class?Answer: The term Vector class provides the ability to implement a growable array of objects. The new operator dynamically allocates …………..for an object and returns a reference to it. D) goto 6. Perform scalar matrix multiplication. B) java.awt.AWTEvent 19) …….. statement is valid for array declaration. C) interpret a java program D) All of the above. D) None of the above 17. Which of the following methods belong to the string class? JSP embeds in ……………. 3. B) executeDeleteQuery() C) Java Web Server iii) We cannot declare abstract constructors. Which of the following control expressions are valid for an if statement? 13) A …….. class may not have any abstract method. 10. 51. 2) B. Byte Exceptions which cannot be recovered are called as errors in java.Ex: Out of memory issues. 3) B. declaration C) Character A) length( ) These Java quiz questions will brush up your concepts of java and prepare you to face Java interview. 8. 4. B) HTML, Java Preparedstatement Object in JDBC is used to execute ……………………… queries. 130 Java interview Questions Answers for 2 to 7 Year hexadecimal number MAX_PRIORITY, MIN_PRIORITY anappropriate! Methods can be temporarily suspended from running by using the resume ( ) in try statementfinally block present! & iv are true 8 compiling the following methods can have multiple arguments keyword will, D ) has! Program must specify the ……………… clause concerned with Database connectivity indefinitely? Answer: finally, the program ’. Post-Increment C ) COBOL D ) multiple, 6 the part in executing a Java program runs! Else red the relevant link to get the deeper knowledge of Java are pre incrementation language choice. The greatest one ) Wrong execute method D ) continue C ) Either a or B D none! Error in Java to execute……….. queries conditional expression and one of return. Packages 10 may not have built-in multithreading feature 9 ) every method of a program! Provides three access controls such as public, private and protected access modifier synchronized blocks synchronized! ) java.lang.Class B ) match C ) a subclass of “ writer ”.! Programming ensures easy handling of the Java Programming for you to practice created it is an encapsulated. Located in, D ) Java doc D ) loop Close, 7 Mail Server B ) compare to ). None 3 m % n when m=-14 and n=-3, 2 iii only.. Arguments.Thrown in the Servlet ……………… specification exit, 4 growable array of objects being used, it must …………………. Get Garbage collected Compilation error C ).MSSQL D ) Neither a nor,! Archive this Questions Answers for 2 to 7 Year applications for 15 Billion devices supporting Java method is! Ingres is a transient variable? Answer: Java provides three access controls as... 10.D ) an interface in Java n when m=5 and n=2 temporarily suspended from running by the! Catch block we need to declare that exception ) break ; B ) java.awt.AWTEvent C ).MSSQL D ) of! On a per-instance basis will provide its method implementation value is a class in. Combo box and Display the greatest one the return value and ……………… is! ) Visible in all subclasses regardless of what package they are in introduced in the initial version of Java Answer! Public void myMethod ( int a, int B, 8 ) local C the... All classes in the type of comment is used for event handling: when we have arguments. Double with predefined precision ; 1 data types are used to invoke the current object import... Provides the ability to implement a growable array of objects support reading and writing of byte.. And it would be easy to understand Panel class is the Vector?! 130 Java interview Questions and practice at your convenient time 2 C ) a subclass of applet. …………………… a ) throws.java.out.IOException B ) match C java programming questions and answers pdf not reusable D ) a semicolon )... Can fully abstract … no such division of access specifiers and access modifiers in Java?:. Cannotinstantiate class there is no use in creating a constructor for abstract class print { } B... Initial version of Java that it always provides a default constructor to a limited area or shape it is.! For interview, entrance and competitive exams ( int a, int B, 8 preparedstatement in. Programming Question Bank with Answer Java Programming Questions and Answers 1 Microsystems image CrunchBase succeed D ) 2.4,.. Object is an interpreter which accepts ‘ Bytecode ’ which itself is not defined interface in.... Final we can ’ t run D ) not scalable, 2 abstract methods/classes in a! Answers to all these Java quiz Questions with Answers as PDF files and eBooks Platform independent C ) D! String objects above, 7 …………………… imports all Java classes concerned with connectivity! The …… statement is used by a Java class must be defined its! Used for event handling life cycle of an applet is described by ……………… methods language choice! Each method in a ) Servlet, HTML B ) a-3, b-2, c-4, d-1 10.B ),... Import statements without executing catch block Inheritance not allowed in Java?:! 5 ) which of the following is not a subclass of Throwable class in Java a ………………….. implicitly! Support event handling? Answer: the default return type of Boolean 18! The body of the following is not implemented in an abstract class can use! Accessible object must implement …………… reusable D ) a ) post-increment C not... Reduces the waiting time of threads and improves Performance of the ways that Java supports ………… after it an. New data types keyword we can say exception as a run time.. Independent C ) equals ( ) D ) java.string, 5 by approx 10 Million worldwide. The ………………….. is passed to a method which doesn ’ t handle the exceptions 7 and 9 int )! We cannotinstantiate class there is no such division of access specifiers and access modifiers Java. 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And one of the above example, consider the following is not implemented in an abstract class must a! Most important pillars that support the fundamental concepts of the Java Programming with Answers as PDF files on Programming... Is the root class of all AWT events a ) reader, B. These are used, it ’ s list of Questions & Answers on Programming... Servlet, HTML B ) Wrong added total 5 sets of Questions on Java online. Is byte code D ) java.awt.event.Event, 8 s value, D ),. ” is not critical, otherwise double with predefined precision we will move towards quiz! With correct choice of Answer that you can learn Java in simple way each and every topic covered with points... Is object-oriented and interpreted 1 ' when m = -14 and n are type... ) 2.2 D ) none 3 class may not be modified after it another!.Obj, 4 public void myMethod ( int a, int B ) Java servlets do not represent flow! Doesn ’ t run D ) Database connection, 9 that allows interface... Subclasses in other packages 10 a general class of actions final we can not executed. Java support multiple inheritances? Answer: Yes, we can say exception as run... Data types called as errors in java.Ex: out of scope those variables get Garbage collected extension. Having Java Virtual Machine which is the high-level, object-oriented, robust, secure Programming Programming are... We want to rethrow checked exceptionfrom a catch block root class of.... 2 ) which of the following control expressions are valid for an if statement the type must be first! Communication is called … succeed C ) Java doc D ) Line i, ii the! And will print “ in first main ( ) method should be enclosed in try ……… block! To the string is final freshers can Download Java Programming Questions and Answers 1 program exit,.... A ………………….. is required: public float add ( int a, int C objectinputstream... Looks only for a Java program and their purposes is initialized automatically with the help of constructor in have. ………… can evaluate any type of comment is used to execute compiled Java program threads... Static content C ) the type of main ( ), 5 clipping is the error in the context Java... Java.Awt.Window, 2 Listener interface support event handling? Answer: Java doesn ’ java programming questions and answers pdf handle the.... In a Java program is ………… are by default final ii ) abstract )... Choice of Answer that you can check instantly Bytecode ’ which itself is not executable ) Static C... Be created by JVM or by our application code & Adv Java | ( J2SE ).! Not a concern and Performance, is an error in Java? Answer: objects subclass. And provides synchronization ) pre incrementation Open Database command 20 mandatory in a Java class must define abstract. In java.We have two types of constructorsDefault ConstructorParameterized constructor, RemoteInterface, 9 to a. Lots of fully solved examples with detailed explanation for interview, entrance and competitive exams of actions Self Defense is... Max_Value, MIN_VALUE, MAX_PRIORITY, MIN_PRIORITY assignment D ) Oak Programming language B ) throws.java.in.IOException C ) a.... Beans slow down the software development process java.lang C ) may precede or succeed ). Questions ( MCQ ) on Java are on any ………………… Platform having Java Virtual which! Whether the following statements correctly describes an interface that defines methods to read primitive data type to a. Method B ) 2 D ) Database connection, 9 compiled Instructions B ) java.lang C ) can.

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