Java BitSet intersects()用法及代碼示例

BitSet是java.util包中定義的類。它創建一個由0和1表示的位數組。

句法

public boolean intersects(BitSet set)

參數：該方法接受強製性參數集，該參數集是要檢查交集的BitSet。

返回：該方法返回一個布爾值，指示此BitSet是否與指定的BitSet相交

說明：如果指定的BitSet具有設置為true的任何位，並且在此BitSet中也設置為true，則該方法返回true，否則返回false。

例子：

Input:
set1:{1, 2, 4}
set2:{}

Output:
false

// Java program illustrating Bitset Class functions. 
import java.util.*; 
public class GFG { 
    public static void main(String[] args) 
    { 
        // Constructors of BitSet class 
        BitSet bs1 = new BitSet(); 
        BitSet bs2 = new BitSet(); 
        BitSet bs3 = new BitSet(); 
  
        /* set is BitSet class method 
        expalined in next articles */
        bs1.set(0); 
        bs1.set(1); 
        bs1.set(2); 
        bs1.set(4); 
  
        // assign values to bs2 
        bs2.set(4); 
        bs2.set(6); 
        bs2.set(5); 
        bs2.set(1); 
        bs2.set(2); 
        bs2.set(3); 
  
        // Printing the 2 Bitsets 
        System.out.println("bs1:" + bs1); 
        System.out.println("bs2:" + bs2); 
        System.out.println("bs3:" + bs3); 
  
        // Performing intersects on two bitset 
        System.out.println("bs1 intersection bs3 = "
                           + bs1.intersects(bs2)); 
        System.out.println("bs3 intersection bs1 = "
                           + bs3.intersects(bs1)); 
    } 
}

輸出：

bs1:{0, 1, 2, 4}
bs2:{1, 2, 3, 4, 5, 6}
bs3:{}
bs1 intersection bs3 = true
bs3 intersection bs1 = false

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注：本文由純淨天空篩選整理自barykrg大神的英文原創作品 Java BitSet | intersects()。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。