package btp.oneP;

import java.util.BitSet;
import java.util.Random;

public class Bits {
	public static void printBitSet(BitSet b){
		System.out.println("bits: "+b);
		StringBuilder bbits = new StringBuilder();
		for(int j = 0;j < b.size();j++){
			bbits.append(b.get(j)?"1":"0");
		}
		System.out.println("bit pattern: "+bbits);
	}
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Random rand = new Random(47);
		byte bt = (byte)rand.nextInt();
		BitSet bb = new BitSet();
		for(int i = 7;i>=0;i--){
			if(((1 << i)&bt) != 0){
				bb.set(i);
			}else{
				bb.clear(i);
			}
		}
		System.out.println("byte value: "+bt);
		printBitSet(bb);
		
		short st = (short)rand.nextInt();
		BitSet bs = new BitSet();
		for(int i = 15;i>=0;i--){
			if(((1 << i)&st) != 0){
				bs.set(i);
			}else{
				bs.clear(i);
			}
		}
		System.out.println("short value: "+st);
		printBitSet(bs);
		
		int it = rand.nextInt();
		BitSet bi = new BitSet();
		for(int i = 31;i>=0;i--){
			if(((1 << i)&bt) != 0){
				bi.set(i);
			}else{
				bi.clear(i);
			}
		}
		System.out.println("int value: "+it);
		printBitSet(bi);
		
		BitSet b127 = new BitSet();
		b127.set(127);
		System.out.println("set bit 127: "+b127);
		BitSet b255 = new BitSet(65);
		b255.set(255);
		System.out.println("set bit 255: "+b255);

		BitSet b1023 = new BitSet(512);
		b1023.set(1023);
		b1023.set(1024);
		System.out.println("set bit 1023: "+b1023);
	}

}