double * double appears to be a bug

double num=36775.715;

double num1 = num*100.0;

System.out.println("PRODUCT = "+num1);

Above simple code produces output as 3677571.4999999995

while

double num=36775.815;

double num1 = num*100.0;

System.out.println("PRODUCT = "+num1);

produces

3677581.5 correctly

Can anyone explain why this happens and what is the solution?

[400 byte] By [mandar_gharse] at [2007-9-26 2:46:41]