String s = new String(“xyz”). How many objects has been made after this line of code execute?

Question

The commonly agreed answer to this interview question is that two objects are created by the code. But I don\'t think so; I wrote some code to confirm.

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Answer 1

@Giulio, You are right. String s3 = new String("abc"); creates two objects one in heap with reference s3 and another in SCP(Without reference). and now String s2 = "abc"; doesn't create any new object in SCP because "abc" is already there in SCP.

    String s1 = "abc";
    String s2 = "abc";
    String s3 = new String("abc");
    String s4 = s3.intern();
    System.out.println("s1: "+System.identityHashCode(s1));
    System.out.println("s2: "+System.identityHashCode(s2));
    System.out.println("s3: "+System.identityHashCode(s3));
    System.out.println("s4: "+System.identityHashCode(s4));

O/P:s1: 366712642, s2: 366712642, s3: 1829164700, s4: 366712642

As i am not eligible for commenting i wrote it here.