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Alex Rivera
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Possible Duplicate: Integer wrapper objects share the same instances only within the value 127? I have copied the following program snippet from the Khalid Mughal SCJP, but I am unable to understand the output. public class RQ200_60 { public static void main(String[] args) { Integer i = -10; Integer j = -10; System.out.print(i==j); // output: true -- why true? System.out.print(i.equals(j)); // output: true Integer n = 128; Integer m = 128; System.out.print(n==m); // output: false System.out.print(n.equals(m)); // output: true } } The above program giving output true for the first print statement but it supposed to give false because it is reference comparison with == relational operator. But third print gives false and I don't understand this inconsistency. Explanations are greatly appreciated!
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