Java ConcurrentSkipListSet iterator()方法

java.util.concurrent.ConcurrentSkipListSet 的 iterator() 方法是Java中的一个内置函数，用于以升序方式返回该集合中元素的迭代器。

语法

ConcurrentSkipListSet.iterator()

返回值： 该函数以升序方式返回该集合中元素的迭代器。

下面的程序说明了java.util.concurrent.ConcurrentSkipListSet.iterator()的使用：

程序1 :

// Java Program Demonstrate iterator()
// method of ConcurrentSkipListSet 
  
import java.util.Iterator;
import java.util.concurrent.ConcurrentSkipListSet;
  
class ConcurrentSkipListSetIteratorExample1 {
    public static void main(String[] args)
    {
  
        // Initializing the set
        ConcurrentSkipListSet<String>
            set = new ConcurrentSkipListSet<String>();
  
        // Adding elements to this set
        set.add("Gfg");
        set.add("is");
        set.add("fun!!");
  
        // Returns an iterator over the elements
        Iterator<String> iterator = set.iterator();
  
        // Printing the elements of the set
        while (iterator.hasNext())
            System.out.print(iterator.next() + " ");
    }
}

输出。

Gfg fun!! is

程序2

// Java Program Demonstrate iterator()
// method of ConcurrentSkipListSet */
  
import java.util.Iterator;
import java.util.concurrent.ConcurrentSkipListSet;
  
class ConcurrentSkipListSetIteratorExample2 {
    public static void main(String[] args)
    {
  
        // Initializing the set
        ConcurrentSkipListSet<Integer>
            set = new ConcurrentSkipListSet<Integer>();
  
        // Adding elements to this set
        set.add(10);
        set.add(15);
        set.add(20);
        set.add(25);
  
        // Returns an iterator over the elements
        Iterator<Integer> iterator = set.iterator();
  
        // Printing the elements of the set
        while (iterator.hasNext())
            System.out.print(iterator.next() + " ");
    }
}

输出。