Java ArrayDeque removeFirstOccurrence()方法
java.util.ArrayDeque.removeFirstOccurrence(Object) 此方法删除此双端队列中指定元素的首次出现。
1 语法
public boolean removeFirstOccurrence(Object o)
2 参数
o:首次出现的元素,将从此双端队列移除(如果存在)。
3 返回值
如果双端队列包含指定的元素,则此方法返回true。
4 示例
package com.yiidian;
/**
* 一点教程网: http://www.yiidian.com
*/
/**
* java.util.ArrayDeque.removeFirstOccurrence(Object)方法的例子
*/
import java.util.ArrayDeque;
import java.util.Deque;
public class Demo {
public static void main(String[] args) {
// create an empty array deque with an initial capacity
Deque<Integer> deque = new ArrayDeque<Integer>(8);
// use add() method to add elements in the deque
deque.add(15);
deque.add(20);
deque.add(25);
deque.add(20);
// let us print all the elements available in deque
for (Integer number : deque) {
System.out.println("Number = " + number);
}
// this will remove first occurrence of element 20
deque.removeFirstOccurrence(20);
System.out.println("Remaining Elements: ");
// let us print all the elements available in deque
for (Integer number : deque) {
System.out.println("Number = " + number);
}
}
}
输出结果为:
Number = 15
Number = 20
Number = 25
Number = 20
Remaining Elements:
Number = 15
Number = 25
Number = 20
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