Sİmple binary operation example

BitDemo1.java

class BitDemo1 {

    /**
     * prints "2"
     */
    public static void main(String[] args) {
        
        int val = 0x2222;
        int bitmask = 0x000F;
        
        printBinary(val);
        System.out.println("&");
        printBinary(bitmask);
        System.out.println("------------");
        printBinary(val & bitmask);
    }

    public static void printBinary(int val) {
        System.out.print(("00000000" + Integer.toBinaryString(val) ).substring(Integer.toBinaryString(val).length())  );
        System.out.println(" ( Hex: 0x" + Integer.toHexString(val) + ", Octal: " + val + ")");
    }
}