java.util.concurrent.ConcurrentLinkedDeque.clear()方法是Java中的内置方法,它删除了Deque中的元素。
用法:
public void clear()
参数:该方法不接受任何参数。
返回值:该函数不返回任何东西
以下示例程序旨在说明ConcurrentLinkedDeque.clear()方法:
程序1:
// Java Program to Demonstrate clear()
// method of ConcurrentLinkedDeque
import java.util.concurrent.*;
class GFG {
public static void main(String[] args)
{
// Creating an empty Deque
ConcurrentLinkedDeque<String> cld
= new ConcurrentLinkedDeque<String>();
// Add elements into the Deque
cld.add("Welcome");
cld.add("To");
cld.add("Geeks");
cld.add("4");
cld.add("Geeks");
// Displaying the Deque
System.out.println("ConcurrentLinkedDeque: "
+ cld);
// Remove all elements of the Deque using clear()
cld.clear();
// Displaying message
System.out.println("\nConcurrentLinkedDeque cleared\n");
// Displaying the Deque
System.out.println("ConcurrentLinkedDeque: "
+ cld);
}
}
输出:
ConcurrentLinkedDeque: [Welcome, To, Geeks, 4, Geeks] ConcurrentLinkedDeque cleared ConcurrentLinkedDeque: []
示例2:
// Java Program to Demonstrate clear()
// method of ConcurrentLinkedDeque
import java.util.concurrent.*;
class GFG {
public static void main(String[] args)
{
// Creating an empty Deque
ConcurrentLinkedDeque<Integer> cld
= new ConcurrentLinkedDeque<Integer>();
// Add elements into the Deque
cld.add(10);
cld.add(20);
cld.add(30);
cld.add(40);
cld.add(50);
// Displaying the Deque
System.out.println("ConcurrentLinkedDeque: "
+ cld);
// Remove all elements of the Deque using clear()
cld.clear();
// Displaying message
System.out.println("\nConcurrentLinkedDeque cleared\n");
// Displaying the Deque
System.out.println("ConcurrentLinkedDeque: "
+ cld);
}
}
输出:
ConcurrentLinkedDeque: [10, 20, 30, 40, 50] ConcurrentLinkedDeque cleared ConcurrentLinkedDeque: []
参考: https://docs.oracle.com/javase/9/docs/api/java/util/concurrent/ConcurrentLinkedDeque.html#clear–
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注:本文由纯净天空筛选整理自Aishwarya Jayashankar大神的英文原创作品 ConcurrentLinkedDeque clear() method 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。