Integer wrapper class behaviour

[balamurugan rajkumar]

consider the following two cases

1)

Integer i3 = 127;

Integer i4 = 127;

if(i3 == i4) System.out.println("same object");

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2)

Integer i3 = 128;

Integer i4 = 128;

if(i3 == i4) System.out.println("same object");

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in case 1 we get same object as output. In the second case we don't get same object printed.
when the object i3 & i4 is compared using '==' with values between -128 to +127, the system prints same object. for any other value the same object is not printed.

could anyone explain why this happens and the reason?? thanks a lot in advance...

[Devaka Cooray]

This Topic would be helpful.

[Muhammad Khojaye]

Check this out