Java LinkedBlockingDeque forEach()用法及代碼示例

LinkedBlockingDeque的forEach()方法為Iterable的每個元素執行給定的操作，直到處理完所有元素或該操作引發異常為止。

用法:

public void forEach(Consumer<E> action)

參數：此方法采取參數操作，該參數操作表示要對每個元素執行的操作。

返回值：此方法不返回任何內容。

異常：如果指定的操作為null，則此方法將引發NullPointerException。

以下示例程序旨在說明LinkedBlockingDeque類的forEach()函數：

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)); 
    } 
}

輸出：

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)); 
    } 
}

輸出：

Linked Blocking Deque: [GeeksforGeeks, Gfg, Geeks, Computer, Science, Portal]
Traversing this deque: 
GeeksforGeeks
Gfg
Geeks
Computer
Science
Portal

參考： https://docs.oracle.com/javase/9/docs/api/java/util/concurrent/LinkedBlockingDeque.html#forEach-java.util.function.Consumer-

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注：本文由純淨天空篩選整理自ProgrammerAnvesh大神的英文原創作品 LinkedBlockingDeque forEach() method in Java with Examples。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。