Integer a = 100, b = 100;
Integer c = 1000, d = 1000;
System.out.println(a == b);
System.out.println(c == d);
The output of the above code is:
true
false
Can someone explain why so?
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1See https://stackoverflow.com/questions/3131136/integers-caching-in-java – helospark Jun 04 '19 at 05:47
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1100 is cached, 1000 is not – aran Jun 04 '19 at 05:47
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Integer is not a primitive type, don't use `==` to compare values with non-primitive type. – AxelH Jun 04 '19 at 08:33