boolean remove(Object o)
描述 (Description)
java.util.ArrayDeque.remove(Object)方法从此deque删除指定element的单个实例。
声明 (Declaration)
以下是java.util.ArrayDeque.remove(o)方法的声明
public boolean remove(Object o)
参数 (Parameters)
o - 要从此双端队列中移除的元素（如果存在）
返回值 (Return Value)
如果此双端队列包含指定的元素，则此方法返回true 。
异常 (Exception)
NA
例子 (Example)
以下示例显示了java.util.ArrayDeque.remove（o）方法的用法。
package com.iowiki;
import java.util.ArrayDeque;
import java.util.Deque;
public class ArrayDequeDemo {
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(25);
deque.add(30);
deque.add(20);
deque.add(40);
// printing all the elements available in deque
for (Integer number : deque) {
System.out.println("Number = " + number);
}
// deque contains element 30, returns true
boolean retval = deque.remove(30);
if (retval == true) {
System.out.println("element 30 is removed from the deque");
} else {
System.out.println("element 30 is not contained in the deque");
}
// deque does not contain element 15, returns false
boolean returnval = deque.remove(15);
if (returnval == true) {
System.out.println("element 15 is removed from the deque");
} else {
System.out.println("element 15 is not contained in the deque");
}
// printing remaining elements
for (Integer number : deque) {
System.out.println("Number = " + number);
}
}
}
让我们编译并运行上面的程序，这将产生以下结果 -
Number = 25
Number = 30
Number = 20
Number = 40
element 30 is removed from the deque
element 15 is not contained in the deque
Number = 25
Number = 20
Number = 40
