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Java Tutorial : Java Unary Bitwise Complement Operator

UnaryBitwiseComplementOperator.java

class UnaryBitwiseComplementOperator
{
    public static void main(String[] args)
    {

        /*
         * An integer type contains 32 bit information. 
         * 8 = 00000000000000000000000000001000
         */

        int number = 8;
        System.out.println("number = " + number);
        System.out.println(Integer.toBinaryString(number));

        /*
         * Using the ~ operator inverts the number by change the every "0" to
         * "1" and every "1" to "0"
         * 
         * 00000000000000000000000000001000 
         * 11111111111111111111111111110111
         */

        int invertedNumber = ~number;
        System.out.println("invertedNumber = " + invertedNumber);
        System.out.println(Integer.toBinaryString(invertedNumber));

    }
}

number = 8
1000
invertedNumber = -9
11111111111111111111111111110111