ArrayBlockingQueue remainingCapacity() 方法在 Java 中


ArrayBlockingQueue 類的 remainingCapacity() 方法用於返回佇列可以在不阻塞的前提下容納的額外元素數量。

語法如下

int remainingCapacity()

要使用 ArrayBlockingQueue 類,需要匯入以下包

import java.util.concurrent.ArrayBlockingQueue;

下面是一個使用 Java ArrayBlockingQueue 類的 remainingCapacity() 方法的示例

示例

 線上演示

import java.util.concurrent.ArrayBlockingQueue;
public class Demo {
   public static void main(String[] args) throws InterruptedException {
      ArrayBlockingQueue<Integer> q = new ArrayBlockingQueue<Integer>(10);
      q.add(120);
      q.add(400);
      q.add(450);
      q.add(500);
      System.out.println("ArrayBlockingQueue = " + q);
      System.out.println("ArrayBlockingQueue Remaining Capacity = " + q.remainingCapacity());
      q.add(620);
      q.add(700);
      System.out.println("ArrayBlockingQueue = " + q);
      System.out.println("ArrayBlockingQueue Remaining Capacity = " + q.remainingCapacity());
      q.add(820);
      q.add(900);
      q.add(950);
      System.out.println("ArrayBlockingQueue = " + q);
      System.out.println("ArrayBlockingQueue Remaining Capacity = " + q.remainingCapacity());
   }
}

輸出

ArrayBlockingQueue = [120, 400, 450, 500]
ArrayBlockingQueue Remaining Capacity = 6
ArrayBlockingQueue = [120, 400, 450, 500, 620, 700]
ArrayBlockingQueue Remaining Capacity = 4
ArrayBlockingQueue = [120, 400, 450, 500, 620, 700, 820, 900, 950]
ArrayBlockingQueue Remaining Capacity = 1

更新時間:2019-07-30

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