当前位置: 首页>>代码示例 >>用法及示例精选 >>正文


Java Stack removeElementAt()用法及代码示例


Java.util.Stack.removeElementAt(int index)方法用于从特定位置或索引中从Stack中删除元素。在此过程中,在将移除的元素向下移动一个位置之后,堆栈的大小会自动减小一个,而所有其他元素都会自动减小。

用法:

Stack.removeElementAt(int index)

参数:此方法接受整数数据类型的强制参数索引,该参数索引指定要从堆栈中删除的元素的位置。


返回值:此方法具有void返回类型。这意味着它不返回任何东西。

以下示例程序旨在说明Java.util.Stack.remove(int index)方法:

示例1:

// Java code to illustrate removeElementAt() 
  
import java.util.*; 
  
public class StackDemo { 
    public static void main(String args[]) 
    { 
  
        // Creating an empty Stack 
        Stack<String> stack = new Stack<String>(); 
  
        // Use add() method to add elements in the Stack 
        stack.add("Geeks"); 
        stack.add("for"); 
        stack.add("Geeks"); 
        stack.add("10"); 
        stack.add("20"); 
  
        // Output the Stack 
        System.out.println("Stack: " + stack); 
  
        // Initial size 
        System.out.println("The initial size is: "
                           + stack.size()); 
  
        // Remove the element at 3rd position 
        stack.removeElementAt(2); 
  
        // Print the final Stack 
        System.out.println("Final Stack: " + stack); 
  
        // Final size 
        System.out.println("The final size is: "
                           + stack.size()); 
    } 
}
输出:
Stack: [Geeks, for, Geeks, 10, 20]
The initial size is: 5
Final Stack: [Geeks, for, 10, 20]
The final size is: 4

示例2:

// Java code to illustrate removeElement() when position of 
// element is passed as parameter 
  
import java.util.*; 
  
public class StackDemo { 
    public static void main(String args[]) 
    { 
  
        // Creating an empty Stack 
        Stack<Integer> stack = new Stack<Integer>(); 
  
        // Use add() method to add elements in the Stack 
        stack.add(10); 
        stack.add(20); 
        stack.add(30); 
        stack.add(40); 
        stack.add(50); 
  
        // Output the Stack 
        System.out.println("Stack: " + stack); 
  
        // Initial size 
        System.out.println("The initial size is: "
                           + stack.size()); 
  
        // Remove the element at 1st position 
        stack.removeElementAt(0); 
  
        // Print the final Stack 
        System.out.println("Final Stack: " + stack); 
  
        // Final size 
        System.out.println("The final size is: "
                           + stack.size()); 
    } 
}
输出:
Stack: [10, 20, 30, 40, 50]
The initial size is: 5
Final Stack: [20, 30, 40, 50]
The final size is: 4


相关用法


注:本文由纯净天空筛选整理自Code_r大神的英文原创作品 Stack removeElementAt() method in Java with Example。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。