Java Bitset清除clear for index 索引

package com.codingdict;

import java.util.*;

public class BitSetDemo {
   public static void main(String[] args) {

      // create 2 bitsets
      BitSet bitset1 = new BitSet(8);
      BitSet bitset2 = new BitSet(8);

      // assign values to bitset1
      bitset1.set(0);
      bitset1.set(1);
      bitset1.set(2);
      bitset1.set(3);
      bitset1.set(4);
      bitset1.set(5);

      // assign values to bitset2
      bitset2.set(2);
      bitset2.set(4);
      bitset2.set(6);
      bitset2.set(8);
      bitset2.set(10);

      // print the sets
      System.out.println("Bitset1:" + bitset1);
      System.out.println("Bitset2:" + bitset2);

      // clear from index 2 to index 4 in bitset1
      bitset1.clear(1, 4);

      // clear index 2 to index 8 in bitset2
      bitset2.clear(2, 8);

      // print new bitsets
      System.out.println("" + bitset1);
      System.out.println("" + bitset2);
   }
}