Java 中的 ArrayDeque removeLast()方法
原文:https://www . geesforgeks . org/arraydeque-remove last-in-method-Java/
Java . util . arraydeque . remove last()方法用于移除 Deque 的最后一个元素。
语法:
Array_Deque.removeLast()
参数:该方法不取任何参数。
返回值:该方法返回去重后的最后一个元素。
异常:如果德格为空,该方法抛出 NoSuchElementException 。
下面的程序说明了 Java . util . Arraydeque . removelast()方法:
程序 1:
// Java code to illustrate removeLast()
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 removeLast() method
de_que.removeLast();
de_que.removeLast();
de_que.removeLast();
// Displaying the ArrayDeque after removal
System.out.println("ArrayDeque after removing "
+ "elements: " + de_que);
}
}
Output:
Initial ArrayDeque: [Welcome, To, Geeks, For, Geeks]
ArrayDeque after removing elements: [Welcome, To]
程序 2:
// Java code to illustrate removeLast()
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 removeLast() method
de_que.removeLast();
de_que.removeLast();
// Displaying the ArrayDeque after removal
System.out.println("ArrayDeque after removing "
+ "elements: " + de_que);
}
}
Output:
Initial ArrayDeque: [10, 15, 30, 20, 5]
ArrayDeque after removing elements: [10, 15, 30]
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