Java MCQ Quiz Description Total Questions −30 00 Max Time − 15:00 What will be the output of the following Java code? class newthread extends Thread { Thread t; truetrue falsefalse true false Who invented Java Programming? Guido van Rossum James Gosling Dennis Ritchie Bjarne Stroustrup Which of these are selection statements in Java? break continue for() if() Which of the following is not a Java features? Dynamic Architecture Neutral Use of pointers Object-oriented Which of the following is not an OOPS concept in Java? Polymorphism Inheritance Compilation Encapsulation What will be the output of the following Java code? class output { public static voi 0 true 1 false What will be the output of the following Java program? class output { public static void mai QuizziuQ ziuQQuiz Quiz ziuQ What will be the output of the following Java program? class Output { public static 1 2 3 4 5 1 2 3 4 1 2 1 2 3 Which of these keywords are used for the block to be examined for exceptions? check throw catch try What will be the output of the following Java program? class output { public static void main(String args[]) &nb NaN Infinity 0.0 all of the mentioned Which of these packages contains the exception Stack Overflow in Java? java.io java.system java.lang java.util Which of these statements is incorrect about Thread? start() method is used to begin execution of the thread run() method is used to begin execution of a thread before start() method in special cases A thread can be formed by implementing Runnable interface only A thread can be formed by a class that extends Thread class What will be the output of the following Java code snippet? class abc { public static void main(String args[]) & The snippet compiles and runs but does not print anything The snippet compiles, runs and prints 0 The snippet compiles, runs and prints 1 The snippet does not compile What is the extension of java code files? .js .txt .class .java What is the use of final keyword in Java? When a class is made final, a sublcass of it can not be created. When a method is final, it can not be overridden. When a variable is final, it can be assigned value only once. All of the above What will be the output of the following Java program? import java.net.*; class networking { &nb 127 126 Runtime Error Compilation Error What will be the output of the following Java program? class leftshift_operator { public sta 0 256 0 64 256 0 64 0 Which of the following is true about servlets? Servlets can use the full functionality of the Java class libraries Servlets execute within the address space of web server, platform independent and uses the functionality of java class libraries Servlets execute within the address space of web server Servlets are platform-independent because they are written in java Which of the following option leads to the portability and security of Java? Bytecode is executed by JVM The applet makes the Java code secure and portable Use of exception handling Dynamic binding between objects Which exception is thrown when java is out of memory? MemoryError OutOfMemoryError MemoryOutOfBoundsException MemoryFullException What will be the output of the following Java program? final class A { int i; } &nbs 2 2 3 3 Runtime Error Compilation Error What is Truncation in Java? Floating-point value assigned to a Floating type Floating-point value assigned to an integer type Integer value assigned to floating type Integer value is not assigned to floating type What will be the output of the following Java code? class String_demo { public static void m abc b c cc Which one of the following is not a Java feature ? Object-oriented Use of pointers Portable Dynamic and Extensible What will be the output of the following Java program? class overload { int x; double 4 6.4 6.4 6 6.4 6.4 6 6 Which statement is true about Java? Java is a sequence-dependent programming language Java is a code dependent programming language Java is a platform-dependent programming language Java is a platform-independent programming language What will be the output of the following Java program? class variable_scope { public static Compilation error Runtime error 5 6 5 6 5 6 5 Which of these cannot be used for a variable name in Java ? identifier & keyword identifier keyword none of the mentioned Which component is used to compile, debug and execute the java programs? JRE JIT JDK JVM What will be the error in the following Java code? byte b = 50; b = b * 50; b cannot contain value 50 b cannot contain value 100, limited by its range No error in this code * operator has converted b * 50 into int, which can not be converted to byte without casting Previous Next Total Question16 Wrong Answer13 Right Answer13
