Confused with the output

[Ankit Chandrawat]

Hi,

public class TestClass7
{
public static void main(String[] args) throws Exception
{
System.out.println(Integer.MIN_VALUE);
int a = Integer.MIN_VALUE;
int b = -a;
System.out.println( a+ " "+b);
}
}


The output is -2147483648 -2147483648.Please explain why the output is not
-2147483648 2147483648.

[Jesper de Jong]

Java stores integers in two's complement format. The range for a 32-bit integer is -2^31 (-2147483648) to 2^31 - 1 (2147483647). The number 2147483648 (which is 2^31) does not fit in an integer.