What will be the output? public class Test{ public static void main(String[] args){ int[] a = new int[4]; a[1] = 1; a = new int[2]; System.out.println("a[1] is " + a[1]); } }

Vikash Gupta • 33.56K Points
Instructor I

Q. What will be the output?
public class Test{
        public static void main(String[] args){
                int[] a = new int[4];
                a[1] = 1;
                a = new int[2];
                System.out.println("a[1] is " + a[1]);
        }
}

(A) The program has a compile error because new int[2]
(B) The program has a runtime error because a[1] = null
(C) a[1] is 0
(D) a[1] is 1

Correct Answer - Option(C)
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Filed under category JAVA

Explanation by: Vikash Gupta

After executing the statement a = new int[2], a refers to int[2]. The default value for a[0] and a[1] is 0.

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Q. What will be the output? public class Test{ public static void main(String[] args){ int[] a = new int[4]; a[1] = 1; a = new int[2]; System.out.println("a[1] is " + a[1]); } }

Explanation by: Vikash Gupta

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