Java Vector remove()用法及代码示例

remove(int index)

java.util.vector.remove(int index)方法用于从特定位置或索引的Vector中删除元素。

用法:

Vector.remove(int index)

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

返回值：此方法返回刚刚从向量中删除的元素。

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

// Java code to illustrate remove() when position of 
// element is passed as parameter 
import java.util.*; 
  
public class VectorDemo { 
    public static void main(String args[]) 
    { 
  
        // Creating an empty Vector 
        Vector<String> vec_tor = new Vector<String>(); 
  
        // Use add() method to add elements in the Vector 
        vec_tor.add("Geeks"); 
        vec_tor.add("for"); 
        vec_tor.add("Geeks"); 
        vec_tor.add("10"); 
        vec_tor.add("20"); 
  
        // Output the Vector 
        System.out.println("Vector: " + vec_tor); 
  
        // Remove the element using remove() 
        String rem_ele = vec_tor.remove(4); 
  
        // Print the removed element 
        System.out.println("Removed element: " + rem_ele); 
  
        // Print the final Vector 
        System.out.println("Final Vector: " + vec_tor); 
    } 
}

输出：

Vector: [Geeks, for, Geeks, 10, 20]
Removed element: 20
Final Vector: [Geeks, for, Geeks, 10]

remove(Object o)

java.util.vector.remove(Object o)方法用于从Vector中删除任何特定元素。

用法:

Vector.remove(Object o)

参数：此方法接受Vector对象类型的强制参数o并指定要从Vector中删除的元素。

返回值：如果找到指定元素并将其从Vector中删除，则返回True，否则返回False。

以下示例程序旨在说明Java.util.Vector.remove(Object O)方法：

// Java code to illustrate remove() method 
import java.util.*; 
  
public class VectorDemo { 
    public static void main(String args[]) 
    { 
        // Creating an empty Vector 
        Vector<String> vec_tor = new Vector<String>(); 
  
        // Use add() method to add elements in the Vector 
        vec_tor.add("Geeks"); 
        vec_tor.add("for"); 
        vec_tor.add("Geeks"); 
        vec_tor.add("10"); 
        vec_tor.add("20"); 
  
        // Output the Vector 
        System.out.println("Vector: " + vec_tor); 
  
        // Remove the head using remove() 
        Boolean rem_ele; 
  
        rem_ele = vec_tor.remove("Geeks"); 
        // Print the removed element 
        if (rem_ele) 
            System.out.println("Geeks"
                               + " found and removed."); 
        else
            System.out.println("Geeks"
                               + " not found or removed."); 
  
        rem_ele = vec_tor.remove("500"); 
        // Print the removed element 
        if (rem_ele) 
            System.out.println("500"
                               + " found and removed."); 
        else
            System.out.println("500"
                               + " not found or removed."); 
  
        // Print the final Vector 
        System.out.println("Final Vector: " + vec_tor); 
    } 
}

输出：

Vector: [Geeks, for, Geeks, 10, 20]
Geeks found and removed.
500 not found or removed.
Final Vector: [for, Geeks, 10, 20]

相关用法

注：本文由纯净天空筛选整理自kundankumarjha大神的英文原创作品 Vector remove() 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。