efi/inputOutputFlanagan/bitops.java

import java.math.BigInteger;
import java.nio.*;

public class bitops {

    public static void main(String arg[]) {
        //ByteBuffer bb = ByteBuffer.allocate(4); 
        //bb.putInt(200);

        //byte[] a3 = bb.array();

        //System.out.println(0b10000 + 0b11001000);
        //for(int i=0; i< a3.length ; i++) {
            //System.out.print(a3[i] +" ");
        //}
        
        /* a) - d) -> use BigInteger */

        BigInteger a1 = new BigInteger(Integer.toBinaryString(200), 2);
        BigInteger a2 = new BigInteger(Integer.toBinaryString(16), 2);

        System.out.println("16 + 200 = " + a1.add(a2).toString(2));

        System.out.println("16 - 200 = " + a1.subtract(a2).toString(2));

        BigInteger c1 = new BigInteger(Integer.toBinaryString(130), 2);
        int c2 = 3;

        System.out.println("130 >> 3 = " + c1.shiftRight(c2).toString(2));

        BigInteger d1 = new BigInteger(Integer.toBinaryString(130), 2);
        int d2 = 7;

        System.out.println("130 << 7 = " + d1.shiftLeft(d2).toString(2));

        /* e) - m) -> use int */

        System.out.println("250 >>> 3 = " + Integer.toString(250 >>> 3, 2));
        /* <<< doesn't work with int ??? */
        System.out.println("-3000 <<< 4 = " + Integer.toString(-3000 << 4, 2));
        System.out.println("~450" + Integer.toString(~450, 2));
        System.out.println("80 & 190" + Integer.toString(80 & 190, 2));
        System.out.println("100|(-390)" + Integer.toString(100 | (-390), 2));
    }
}