"Special care must be taken when dealing with int types. For all four operators, if both operands are integers, the result will be an integer. For addition, subtraction, and multiplication this isn’t an issue, but for division it means that when we divide, say (10 / 20), the result is not 0.5 as expected. The number 0.5 is a floating point number. As such, the fractional part gets truncated, or cut off and thrown out, leaving only zero. In the code above, d = a / b; the variable d ends up getting the value zero because of this.\n\nA solution to this problem is to use explicit type casting to force at least one of the operands in an integer division to become a double type. For example:\n\nint a = 10, b = 20;\n\ndouble x;\n\nx = (double) a / b;"