Java Quiz Test your knowledge of the Java programming language with this 12-question quiz! remus2009 published on January 131 response 0 « Previous Next » Questions in vertical order 1/12 Which of the following is not a primitive data type in Java? int boolean string double 2/12 What is the output of the following code snippet?int x = 5;System.out.println(x++); 4 5 6 Compilation error 3/12 What is the main purpose of using 'break' statement in Java? To terminate the current loop To continue to the next iteration of the loop To throw an exception To define a custom label for the loop 4/12 Which keyword is used to inherit a class in Java? super abstract new extends 5/12 Which data structure provides a last-in, first-out (LIFO) ordering? ArrayList LinkedList HashMap Stack 6/12 What is the default value of an instance variable in Java? 0 null false Depends on the data type 7/12 Which exception is thrown when an array index is out of bounds? ArrayIndexOutOfBoundsException NullPointerException ArithmeticException IndexOutOfBoundsException 8/12 What is the entry point method in a Java program? start() init() main() run() 9/12 Which access modifier makes a class or method accessible within the same package? protected private public default 10/12 What is the purpose of the 'final' keyword in Java? To define a class that cannot be inherited To prevent a method from being overridden To declare a constant variable To specify a default value for a variable 11/12 What does the 'synchronized' keyword in Java ensure? Thread safety Code simplicity Efficient memory usage Exception handling 12/12 What is the purpose of the 'equals()' method in Java? To compare two distinct objects To compare two primitive data types To compare the content of two objects To check if an object is null
