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equals method and '==' little doubt

 
Greenhorn
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why in output i1 != i2 but i3==i4 ?
 
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Welcome to the ranch. This is a very frequently asked question here at the ranch. What happens when you say new Integer(5)? Can you explain that first?
 
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It has to do with caching of frequently used values. Start here, where you will find about eight links to old posts. If that doesn’t explain it, please ask again.
 
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