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1.

class Main {public static void main(String args[]){final int i;i = 20;i = 30;System.out.println(i);}}(A) 30(B) Compiler Error(C) Garbage value(D) 0

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2.

What is the use of final keyword in Java?(A) When a class is made final, a sublcass of it can not be created.(B) When a method is final, it can not be overridden.(C) When a variable is final, it can be assigned value only once.(D) All of the above

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3.

class Base {public final void show() {System.out.println("Base::show() called");}}class Derived extends Base {public void show() {System.out.println("Derived::show() called");}}public class Main {public static void main(String[] args) {Base b = new Derived();;b.show();}}(A) Derived::show() called(B) Base::show() called(C) Compiler Error(D) Exception

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4.

Output of following Java programclass Main {public static void main(String args[]){final int i;i = 20;System.out.println(i);}}(A) 20(B) Compiler Error(C) 0(D) Garbage value

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