Shift Operators with int data type source code

package operators;

public class IntShiftOperators {

    /**
     * @param args
     */
    public static void main(String[] args) {
        int i=3;
        //left shift operator
        System.out.println(" i << 1 =" + (i <<1));
        System.out.println(" i << 3 =" + (i <<3));
        System.out.println(" i << 32 =" + (i <<32));//same as i
        System.out.println(" i << 33 =" + (i <<33)); //same as <<1

        i=44;
        //right shift operator
        System.out.println(" i << 1 =" + (i >>1));
        System.out.println(" i >> 32 =" + (i >>32)); //same as i
        i=255;
        System.out.println(" i >> 7 (i is 0xff) =" + (i >>7));
        System.out.println(" i >> 8 (i is 0xff) =" + (i >>8));
        // unsigned right shift
        System.out.println(" i >>> 7 (i is 0xff) =" + (i >>>7));
        System.out.println(" i >>> 8 (i is 0xff) =" + (i >>>8));
        System.out.println(" i >>> 32 =" + (i >>32)); //same as i
        // all the above four yeilds the same result why ?
        i = -222 ;
        System.out.println(" i >> 1  =" + (i >>1));
        System.out.println(" i >> 3  =" + (i >>3));
        System.out.println(" i >>> 1  =" + (i >>>1));
        System.out.println(" i >>> 3  =" + (i >>>3));
           System.out.println(" i >>> 32  =" + (i >>>32));//same as i

    }

}


output:
 i << 1 =6
 i << 3 =24
 i << 32 =3
 i << 33 =6
 i << 1 =22
 i >> 32 =44
 i >> 7 (i is 0xff) =1
 i >> 8 (i is 0xff) =0
 i >>> 7 (i is 0xff) =1
 i >>> 8 (i is 0xff) =0
 i >>> 32 =255
 i >> 1  =-111
 i >> 3  =-28
 i >>> 1  =2147483537
 i >>> 3  =536870884
 i >>> 32  =-222