Java 中 LinkedBlockingDeque 元素()方法
原文:https://www . geeksforgeeks . org/link edblockingeque-element-method-in-Java/
链接锁定请求的元素()方法返回容器前面的元素。它不会删除容器中的元素。这个方法返回由这个 deque 表示的队列头。
语法:
public void element()
参数:此方法不接受任何参数。
返回:这个方法返回这个 deque 所代表的队列头。
下面的程序说明了 link edblockingrequest 的 element()方法:
程序 1:
Java 语言(一种计算机语言，尤用于创建网站)
// Java Program Demonstrate element()
// method of LinkedBlockingDeque
import java.util.concurrent.LinkedBlockingDeque;
import java.util.*;
public class GFG {
public static void main(String[] args)
throws IllegalStateException
{
// create object of LinkedBlockingDeque
LinkedBlockingDeque<Integer> LBD
= new LinkedBlockingDeque<Integer>();
// Add numbers to end of LinkedBlockingDeque
LBD.add(10);
LBD.add(20);
LBD.add(30);
LBD.add(40);
// before removing print queue
System.out.println("Linked Blocking Deque: " + LBD);
System.out.println("Linked Blocking Deque front element: " +
LBD.element());
}
}
Output:
Linked Blocking Deque: [10, 20, 30, 40]
Linked Blocking Deque front element: 10
程序 2:
Java 语言(一种计算机语言，尤用于创建网站)
// Java Program Demonstrate element()
// method of LinkedBlockingDeque
import java.util.concurrent.LinkedBlockingDeque;
import java.util.*;
public class GFG {
public static void main(String[] args)
throws IllegalStateException
{
// create object of LinkedBlockingDeque
LinkedBlockingDeque<String> LBD
= new LinkedBlockingDeque<String>();
// Add numbers to end of LinkedBlockingDeque
LBD.add("ab");
LBD.add("cd");
LBD.add("fg");
LBD.add("xz");
// before removing print queue
System.out.println("Linked Blocking Deque: " + LBD);
System.out.println("Linked Blocking Deque front element: " +
LBD.element());
}
}
Output:
Linked Blocking Deque: [ab, cd, fg, xz]
Linked Blocking Deque front element: ab
参考:T2【https://docs . Oracle . com/javase/7/docs/API/Java/util/concurrent/linkedblockingrequest . html # element()T4】
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