Java Vector remove()用法及代碼示例

remove(int index)

java.util.vector.remove(int index)方法用於從特定位置或索引的Vector中刪除元素。

用法:

Vector.remove(int index)

參數：此方法接受整數數據類型的強製參數索引，並指定要從Vector中刪除的元素的位置。

返回值：此方法返回剛剛從向量中刪除的元素。

以下示例程序旨在說明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); 
    } 
}

輸出：

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

remove(Object o)

java.util.vector.remove(Object o)方法用於從Vector中刪除任何特定元素。

用法:

Vector.remove(Object o)

參數：此方法接受Vector對象類型的強製參數o並指定要從Vector中刪除的元素。

返回值：如果找到指定元素並將其從Vector中刪除，則返回True，否則返回False。

以下示例程序旨在說明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); 
    } 
}

輸出：

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

相關用法

注：本文由純淨天空篩選整理自kundankumarjha大神的英文原創作品 Vector remove() Method in Java。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。