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Java Java.util.BitSet.flip()用法及代码示例


flip()方法有两种变体。本文介绍了所有这些内容,如下所示:

1. flip(int value):此方法删除参数中指定的值。

public void flip(int value)

参数:
value: the value to flip.
Return ValueThis method does not return a value.
// Java code to demonstrate the 
// working of flip(int value) in Bitset 
  
import java.util.*; 
  
public class Flip1 { 
  public static void main(String[] args) { 
       
  // declaring bitset 
  BitSet bset = new BitSet(6); 
   
  // assigning values to bset 
  bset.set(0); 
  bset.set(1); 
  bset.set(2); 
  bset.set(3); 
  
  // printing the original set 
  System.out.println("The original bitset is:" + bset); 
   
  // using flip() to remove 2 
  bset.flip(2); 
       
  //  printing final bitset 
  // 2 is removed 
  System.out.println("The flipped bitset is:" + bset); 
  } 
}

输出:


The original bitset is:{0, 1, 2, 3}
The flipped bitset is:{0, 1, 3}

2. flip(int fromnum,int tonum):此方法将指定的fromnum(包括)到指定的tonum(不包括)中的每个位设置为其当前值的补码,即将fromnum删除为tonum-1的值。

public void flip(int fromnum,int tonum)
参数:
fromnum: start number to begin flipping.
tonum: last-1 number to end flipping.
返回值:
This method does not return a value.
// Java code to demonstrate the 
// working of flip(int fromnum, int tonum) in Bitset 
  
import java.util.*; 
  
public class Flip2 { 
  public static void main(String[] args) { 
       
  // declaring bitset 
  BitSet bset = new BitSet(6); 
   
  // assigning values to bset 
  bset.set(0); 
  bset.set(1); 
  bset.set(2); 
  bset.set(3); 
  
  // printing the original set 
  System.out.println("The original bitset is:" + bset); 
   
  // using flip(fromnum,tonum) to remove 1 and 2 
  bset.flip(1,3); 
       
  //  printing final bitset 
  // 1 and 2 are removed 
  System.out.println("The flipped bitset is:" + bset); 
  } 
}

输出:

The original bitset is:{0, 1, 2, 3}
The flipped bitset is:{0, 3}



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注:本文由纯净天空筛选整理自 Java.util.BitSet.flip() in Java。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。