java - My program is not working properly -

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i have following code in java overflows when shouldn't. why?

public classo {     public static void main(string[] args) {         int big = integer.max_value;         system.out.println("big = " + big);         long bigger = big + 2;         system.out.println("bigger = " + bigger);     } }

i output:

 big = 2147483647 bigger = -2147483647

why overflow? have defined bigger long. wrong?

big+2 overflow big max. value while (long) big not 

long bigger = (long) big +2

will work treat big long instead of integer.
so make cast of float it.


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