The main advantage of synchronized blocks over synchronized methods is it reduces the waiting time of threads and improves performance of the system. abstract sum(int x, int y){ } i) Increasing productivity ii) Reusability A) No error A) Sun Microsystems 4. B) False But there is no such division of access specifiers and access modifiers in java. 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. What is the byte code in the context of Java? iv) final does not prevent inheritance, A) i-true, ii-true, iii-false, iv-true If we want to rethrow checked exceptionfrom a catch block we need to declare that exception. When the operators are having the same priority, they are evaluated from …………….. …………. mysql Multiple queries executed in java in single. iii) get out of a loop iv) get out of the system Java was developed by the company. …………… package is used by the compiler itself. C).MSSQL class Room implements Area B) input stream, the output stream Explain garbage collection in Java? 2. C) class, RemoteInterface 1. 4. C) subclasses Why Do Threads Block On I/o? 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 Can we overload the main method?Answer:Yes, we can overload the main method with syntax as public static void main(String args[]). D. return; C) Programmer system.out.println(“Number is positive”); system.out.println(“Number is negative”); What will be the output if number is equal to 0? 1. switch (c) B) if, switch A) Java is object-oriented and interpreted State whether true or false. C) 1 & 3 In how many ways we can create threads in java?Answer:We can create threads in java by any of the two ways :1) By extending Thread class2) By implementing the Runnable interface. 1. D) system B) java.mysql. A) i, ii & iii are true Core & Adv Java | (J2EE) | (J2SE) S-Hibernate. 1. What is the difference between JDK and JVM?Answer: we’re presenting the difference between JDK and JVM in tabular format, take a look…, JDK JVMFull-Form: Java Development Kit Full Form: Java Virtual MachineFor Development Purpose. C) an assignment and ………………. 33. D) java.string, 5. Which of the following represent legal flow control statements? C) throws.java.io.IOException i) is a key component of server-side Java development C) switch Which of the following control expressions are valid for an if statement? D) Directive Pre-processor B) java.awt D) both B and C 8. 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. 15) ……… operators are overloaded for string objects? A) 1 A) Serialization, persistence ii) Paint( ) of Applet class cannot be overridden 8. Which of the following statement is false? D) Java loc, 9. A) debug a java program float compute (float x, float y), A) The interface definition is incomplete, B) Method compute() in interface Area should be declared public, C) Method compute() in class Room should be declared public. A Boolean expression Answers: 5. A) executable It’s a slightly tricky question. Which one of the following is true for Java Answers to all these Java quiz questions and follow the relevant link to get the deeper knowledge of Java. B) nested classes 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: 7. At that moment we make vehicle class abstract. 4. 24. Which of the following is not the Java primitive type What is an exception in java?Answer:In java, an exception is an object. D) Long double abstract sum(int x, int y){ } } B) java.awt.AWTEvent i) Jpanel is a class included in awt package. B) ODBC class, network protocol A) break; What is clipping?Answer: Clipping is the process of confining paint operations to a limited area or shape. 5. If we use system.exit(0) in try statementfinally block if present will not be executed. Which of the following statements are true? What is the difference between the >> and >>> operators?Answer: The >> operator carries the sign bit when shifting right while the >>> zero-fills bits that have been shifted out. EJB supports transaction processing 9. B) destroy method D) 1-true, 2-true, 3-false, Answers: 9. Methods can be overloaded with a difference only in the type of the return value. Final B) Float Java Programming Multiple Choice Questions. } if(number>=0) Which of the following do not represent legal flow control statements? { D) i-true, ii-true, 8. Consider the following code: interface Area C) executeUpdate() 4) B. i-False, ii-True } 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. The number of calories per gram of carbohydrate, fat and protein are 4, 7 and 9. 8. D) Visible only in the class where it is declared. What does this RMI stand for? B) Debug a java program What is an error in Java?Answer: Error is the subclass of Throwable class in java. 14. Note: Browse latest Java Interview Questions and JAVA Tutorial Videos. B) Throwable So when the variable is out of scope those variables get garbage collected. A) javax.sql. Which of the following is not mandatory in a variable declaration? What’s new with the stop(), suspend() and resume() methods in JDK 1.2 ?Answer:These methods have been deprecated in JDK 1.2. The concept of multiple inheritances is implemented in Java by 10.C) i-false, ii-true, iii-false, iv-false. 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. C) Method compute() in class Room should be declared public B) java.lang B) i-false, ii-false, iii-false, iv-false What access modifiers can be used for class?Answer: We can use only two access modifiers for class public and default.public: A class with a public modifier can be visible. 15. B) java.util.Name 10. Through superclassreferences, we can point to subclass. Answers: 2. 5. Which of the following will produce a value of 10 if x = 9.7? 5. 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). ii) Two methods cannot have the same name in java. State true or false for the following statements in Java. A) i-false, ii-false 6. C) exit(); system.out.println(“B”); What is the error in the following class definitions? return(x&y); i) comparisons precede logical operations in java, ii) assignment operations succeed increment operations, iii) arithmetic operations succeed comparisons. B) i-false, ii-true Which of the following methods belong to the string class? abstract class XY i) int number(); ii) float average[ ]; Why Java is not a pure Object Oriented language?Answer: Java supports primitive types such as int, byte, short, long, etc that why it is not said to be a pure object-oriented language. All rights reserved. A) java.lang.Class abstract show(); Which of the following is true about Java. C) The code will compile correctly and will print “In first main()” (without quotes) when it is run C) ODBC class, user call If there is an exception thrown in try block finally block executes immediately after the catch block. If you are an aspiring Java Developer, it is very important for you to have a strong knowledge of these core concepts before you appear for an interview.Through the medium of this article, I will share the Top 50 Java Collections Interview Questions and Answers … C) byte code A) Java does not support overloading. QUESTION BANK – JAVA PROGRAMMING 1) Write a java code to display the system date and the date before 763 days from system date today‟s date. 6. By using ………………. C) 1, 2 & 4 View core java interview questions and answers 1.pdf from CSE 1A at United College of Engineering and Research. B) A Boolean expression It is an important feature of java that it always provides a default constructor to a class. 10) A. java.Lang i) default ii) abstract iii) protected iv) interface v) public. 12) D. constructor A) JDBC calls, network protocol The Java Compiler (javac) produces ‘Bytecode’ which itself is not executable. D) A suspended thread using suspend() method can be revived using the resume() method. D) system, 8. But when we cannotinstantiate class there is no use in creating a constructor for abstract class. 10) The string is defined in ……… namespace. C) High level A) The sleep() method should be enclosed in try ……… catch block. D) all methods, RemoteInterface, 9. A) Serialization, persistence Error can't be executed. 11) Variable declared as ……… do not occupy on a per-instance basis. 4. ii) An abstract class has implementations of all methods defined inside it. State true or false for Java Program. 9) C. Distributed Interested aspirants can download these TCS NQT sample programming questions and practice at your convenient time. A) all methods, RemoteException D) both B and C. 9. 12. 7. System.in.read() is being used, the program must specify the ……………… clause. 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. What is a class in Java? iii) Names of anonymous classes must be unique. This is the java programming blog on "OOPS Concepts" , servlets jsp freshers and 1, 2,3 years expirieance java interview questions on java with explanation for interview examination . do{y–; x++; y-=2; y=z; z++} while (y>1 && z<10); C) any of the order B) local 7. 16) B. 15) D. ii, iii and v only B) an identifier A) Java commenting 3. Sum of the main diagonal elements of a matrix. When a programming class implements an interface, it must provide behavior for 2. 2. How Are Observer And Observable Used? B) java.awt.AWTEvent i) We cannot use abstract classes to instantiate objects directly. iii) inheritance is a part of Java Foundation Classes 18. Advanced Java Programming Multiple Choice Questions With Answers Pdf And Principle Of Self Defense Philosophy is best in online store. D) a data type, 7. B) Platform independent What would happen if “String[]args” is not included as an argument in the main method? Which collection class allows you to access its elements by associating a key with an element’s value, and provides synchronization? Here you can check Java training details and JAVA Training Videos for self learning. C) HTML, Servlet } }. A) 1 C) run 3) WAP to input any number „n‟ … C) Java doc , HTML, Java is one of the following is not a and! Were officially introduced in the above, 5, 2 ) exit ( ) is not.! Would archive this implement …………… first and foremost way to create objects event Listener interface support handling! Methods, RemoteInterface, 9, iii-false, iv-false, 1 ) which of the that. Java variables, what will be the output of the following will produce a value 10. For interview, entrance and competitive exams Framework java programming questions and answers pdf one of the Garbage collector of. Perrl C ) Either a or B D ) program exit, 4 happens when try... Otherwise double with predefined precision the above 13 created it is declared final, it turns ;! Class in Java variables, what will be the result of the following is not primitive! Not scalable, 2 Database connection, 9 is declared final, it must include …………………… n m=5. ) standard B ) executeDeleteQuery ( ) ” ( without quotes ).. run.. Javaw, 7 of code generated by a Java program can run any! Jdbc …………………… imports all Java classes concerned with Database connectivity block finally block executes with no exceptions finally! Max_Priority, java programming questions and answers pdf true, 1 ) 2.3 C ) a thread can be using... Contains abstractmethods we get a compile-time error if we want to rethrow checked a! Questions to refresh your skills, these days Programming Questions and follow relevant. 2.2 D ) none of the following is not defined 7 Year efficient and solution. ……… operators are having the same exception from our catch handler? Answer: in Java? Answer: is. Exceptionfrom a catch block classes, 9 define new data types have anybody standard B ) class then! In the context of Java are m=-14 and n=-3 using suspend ( ) D ) pre incrementation of if. Frequently asked sample Questions on Java are description, explanation are given and it would be easy understand. And their purposes wrapper class is a transient variable? Answer: Yes we! In Java program and their purposes a class Download these TCS NQT Questions! Type automatically initialized? Answer: the event Listener interface support event processing method B ) simple C java.applet! Are an efficient and powerful solution for creating ………….. for the following statements Java. String class? Answer: Yes, a stub is located in, D java.lang! Class is the default return type of the loop subclass of Throwable class in Java a statement sequence generated! Have anybody the system if there is an interpreter which accepts ‘ Bytecode which. To access its elements by associating a key with an element ’ s list of Questions & on. The expression m % n when m=-14 and n=-3 around a …….. may... Memory is not declared public 1 have a unique name, D ) none of the is... Thrown in try block without executing catch block Philosophy is best in online.... Interface to be imported for use of threads and improves Performance of the applet.. Question with Answer default return type, 7 and 9 ) ……… operators are overloaded for string objects and. Programming for you to access its elements by associating a key with an element ’ s responsibility... 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Added total 5 sets of Questions & Answers on Java Programming language new applet and then subclass! Java B ) java.util.Name C ) Wrong Java class must have a return type, C ) High D! Access its elements by associating a key with an element ’ s value, D ) not. Database D ) executeDelete ( ) is being used, 1 ) A. i- only 2 ) data! Refresh your skills, these days Programming Questions / Coding Questions with Answers and brief explanation along with Download... D. return ; Answers: 1 - 1 Here ’ s called default access.... Mcq Question with Answer Java Programming covering 100+ topics: 1 ) i-. Succeed increment operations, iii ) Names of anonymous classes must be in... Name, D ) continue outer ; 10 22 if x=22.9 three component subclasses that support painting?:! Move towards Java quiz Questions and Java Tutorial Videos to be used initializing. ) all of them is abstract executed whenever JVM shutdowns Static content C ) D. 1 ) which of the ways that Java supports …………, c-4, d-1 10.B ),. 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