用示例链接 Java 中的锁请求 forEach()方法
原文:https://www . geeksforgeeks . org/link edblockingeque-foreach-method-in-Java-with-examples/
link edblockingrequest的 forEach() 方法为 Iterable 的每个元素执行给定的操作，直到所有元素都被处理完或者该操作抛出异常。
语法:
public void forEach(Consumer<E> action)
参数:该方法采用一个参数动作，代表每个元素要执行的动作。
返回值:这个方法不返回任何东西。
异常:如果指定的动作为空，该方法抛出空指针异常。
下面的程序说明了 LinkedBlockingDeque 类的 forEach()函数:
例:
// Java Program Demonstrate forEach()
// 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(11);
LBD.add(22);
LBD.add(33);
LBD.add(44);
LBD.add(55);
LBD.add(66);
LBD.add(77);
// print deque
System.out.println("Linked Blocking Deque: "
+ LBD);
System.out.println("Traversing this Deque: ");
// Traverse this queue using forEach() method
LBD.forEach((n) -> System.out.println(n));
}
}
输出:
Linked Blocking Deque: [11, 22, 33, 44, 55, 66, 77]
Traversing this Deque:
11
22
33
44
55
66
77
示例:2
// Java Program Demonstrate forEach()
// 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 elements to end of LinkedBlockingDeque
LBD.add("GeeksforGeeks");
LBD.add("Gfg");
LBD.add("Geeks");
LBD.add("Computer");
LBD.add("Science");
LBD.add("Portal");
// print deque
System.out.println("Linked Blocking Deque: "
+ LBD);
System.out.println("Traversing this deque: ");
// Traverse this deque using forEach() method
LBD.forEach((n) -> System.out.println(n));
}
}
输出:
Linked Blocking Deque: [GeeksforGeeks, Gfg, Geeks, Computer, Science, Portal]
Traversing this deque:
GeeksforGeeks
Gfg
Geeks
Computer
Science
Portal
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