Question

How to use flip bits in BitSet in Java

Answer 1

import java.util.*; 
 
public class MyClass {
    public static int TOTAL_BITS = 8;
     
    public static void set_random_bits(BitSet sb) {
        Random r = new Random();
         
        for (int i = 0; i < TOTAL_BITS / 2; i++)
            sb.set(r.nextInt(TOTAL_BITS));
    }
    public static void print_bits(BitSet sb) {
        for (int i = 0; i < TOTAL_BITS; i++) {
             System.out.print(sb.get(i) ? "1" : "0");
        }
        System.out.println();
    }
    public static void main(String args[]) {
        BitSet bs = new BitSet(TOTAL_BITS);
 
        set_random_bits(bs);
         
        print_bits(bs); 
        
        bs.flip(0, 4); 
        
        print_bits(bs); 
    }
}
  
  
  
/*
run:
  
01000110
10110110
  
*/

 

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