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Question

What is the output of this program? 
    import java.util.*;
    class Arraylist 
    {
        public static void main(String args[]) 
        {
            ArrayList obj = new ArrayList();
            obj.add("A");
            obj.add("B");
            obj.add("C");
            obj.add(1, "D");
            System.out.println(obj);
        }
    }

a.

[A, B, C, D].

b.

[A, D, B, C].

c.

[A, D, C].

d.

[A, B, C].

Posted under Java Programming

Answer: (b).[A, D, B, C].

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