Java ConcurrentSkipListSet add()用法及代碼示例

java.util.concurrent.ConcurrentSkipListSet.add()方法是Java中的內置函數，用於在此集合中插入元素。

用法:

ConcurrentSkipListSet.add(E e)

參數：該函數接受單個參數，即要插入的元素。

返回值：該函數返回True布爾值。

以下示例程序旨在說明ConcurrentSkipListSet.add()方法：

示例1:在集合中添加整數。

// Java program to demonstrate add() 
// method of ConcurrentSkipListSet 
  
import java.util.concurrent.*; 
  
class ConcurrentSkipListSetAddExample1 { 
    public static void main(String[] args) 
    { 
        // Creating a set object 
        ConcurrentSkipListSet<Integer> Lset =  
                  new ConcurrentSkipListSet<Integer>(); 
  
        // Adding elements to this set 
        for (int i = 10; i <= 50; i += 10) 
            Lset.add(i); 
  
        // Printing elements of the set 
        System.out.println("The set contains: "); 
        for (Integer i : Lset) 
            System.out.print(i + " "); 
    } 
}

輸出：

The set contains: 
10 20 30 40 50

示例2:在集合中添加字符串。

// Java program to demonstrate add() 
// method of ConcurrentSkipListSet 
  
import java.util.concurrent.*; 
  
class ConcurrentSkipListSetAddExample2 { 
    public static void main(String[] args) 
    { 
        // Creating a set object 
        ConcurrentSkipListSet<String> Lset =  
                     new ConcurrentSkipListSet<String>(); 
  
        // Adding elements to this set 
        Lset.add("alex"); 
        Lset.add("bob"); 
        Lset.add("chuck"); 
        Lset.add("drake"); 
        Lset.add("eric"); 
  
        // Printing elements of the set 
        System.out.println("The set contains: "); 
        for (String i : Lset) 
            System.out.print(i + " "); 
    } 
}

輸出：

The set contains: 
alex bob chuck drake eric

參考： https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ConcurrentSkipListSet.html#add(E)

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注：本文由純淨天空篩選整理自rupesh_rao大神的英文原創作品 ConcurrentSkipListSet add() method in Java。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。