Java中的java.util.ArrayDeque.removeLastOccurrence(Object)方法用于从此双端队列中删除特定元素的最后一次出现。如果该元素仅存在一次,则将该元素删除并返回true。如果没有删除此类元素,则返回false。
用法:
Array_Deque.removeLastOccurrence(Object O)
参数:该方法采用ArrayDeque类型的一个参数O,该参数O引用要删除最后一个出现的元素。
返回值:如果元素存在于双端队列中,则此方法返回true,否则返回false。
下面的程序演示了Java.util.ArrayDeque.removeLastOccurrence()方法:
程序1:
// Java code to illustrate removeLastOccurrence()
import java.util.*;
public class ArrayDequeDemo {
public static void main(String args[])
{
// Creating an empty ArrayDeque
Deque<String> de_que = new ArrayDeque<String>();
// Use add() method to add elements into the Deque
de_que.add("Welcome");
de_que.add("To");
de_que.add("Geeks");
de_que.add("For");
de_que.add("Geeks");
// Displaying the ArrayDeque
System.out.println("Initial ArrayDeque: " + de_que);
// Removing elements using removeLastOccurrence() method
de_que.removeLastOccurrence("Geeks");
de_que.removeLastOccurrence("For");
// Displaying the ArrayDeque after removal
System.out.println("ArrayDeque after removing "
+ "elements: " + de_que);
}
}
输出:
Initial ArrayDeque: [Welcome, To, Geeks, For, Geeks] ArrayDeque after removing elements: [Welcome, To, Geeks]
示例2:
// Java code to illustrate removeLastOccurrence()
import java.util.*;
public class ArrayDequeDemo {
public static void main(String args[])
{
// Creating an empty ArrayDeque
Deque<Integer> de_que = new ArrayDeque<Integer>();
// Use add() method to add elements into the Deque
de_que.add(10);
de_que.add(15);
de_que.add(30);
de_que.add(20);
de_que.add(5);
// Displaying the ArrayDeque
System.out.println("Initial ArrayDeque: " + de_que);
// Removing elements using removeLastOccurrence() method
de_que.removeLastOccurrence(30);
de_que.removeLastOccurrence(5);
// Displaying the ArrayDeque after removal
System.out.println("ArrayDeque after removing "
+ "elements: " + de_que);
}
}
输出:
Initial ArrayDeque: [10, 15, 30, 20, 5] ArrayDeque after removing elements: [10, 15, 20]
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注:本文由纯净天空筛选整理自Chinmoy Lenka大神的英文原创作品 ArrayDeque removeLastOccurrence() Method in Java。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。