Java中的 LinkedBlockingDeque addAll() 方法及示例

LinkedBlockingDeque 的addAll()方法将指定集合的所有元素附加到此双端队列的末尾。
句法：

public void addAll(Collection c)

参数：此方法接受一个强制参数c ，它是要插入到 LinkedBlockingDeque 末尾的集合。
返回值：此方法不返回任何内容。
例外情况：目前有 2 个例外情况：-

• IllegalStateException ：如果此时由于容量限制无法添加集合。
• NullPointerException : 如果指定的集合为 Null。

下面的程序说明了 LinkedBlockingDeque 类的 addAll()函数：
示例 1：

Java

// Java Program Demonstrate addAll()
// 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 LBD
            = new LinkedBlockingDeque();
 
        // Add numbers to end of LinkedBlockingDeque
        LBD.add(11);
        LBD.add(22);
        LBD.add(33);
        LBD.add(44);
 
        // Print deque
        System.out.println("Linked Blocking Deque: "
                           + LBD);
 
        // Create object of ArrayList collection
        ArrayList ArrLis
            = new ArrayList();
 
        // Add number to ArrayList
        ArrLis.add(55);
        ArrLis.add(66);
        ArrLis.add(77);
        ArrLis.add(88);
 
        // Print ArrayList
        System.out.println("ArrayList: "
                           + ArrLis);
 
        // Function addAll() adds all the elements of
        // ArrayList to Deque
        LBD.addAll(ArrLis);
 
        // Print deque
        System.out.println("Linked Blocking Deque: "
                           + LBD);
    }
}

示例 2：

Java

// Java Program Demonstrate addAll()
// 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 LBD
            = new LinkedBlockingDeque();
 
        // Add elements to end of LinkedBlockingDeque
        LBD.add("GeeksforGeeks");
        LBD.add("Gfg");
        LBD.add("Geeks");
 
        // Print deque
        System.out.println("Linked Blocking Deque: "
                           + LBD);
 
        // Create object of ArrayList collection
        ArrayList ArrLis
            = new ArrayList();
 
        // Add elements to ArrayList
        ArrLis.add("Computer");
        ArrLis.add("Science");
        ArrLis.add("Portal");
 
        // Print ArrayList
        System.out.println("ArrayList: " + ArrLis);
 
        // Function addAll() adds all the elements of
        // ArrayList to Deque
        LBD.addAll(ArrLis);
 
        // Print deque
        System.out.println("Linked Blocking Deque: "
                           + LBD);
    }
}

参考： https://docs.oracle.com/javase/9/docs/api/ Java/util/concurrent/LinkedBlockingDeque.html#addAll-java.util.Collection-