Write a Java program to remove an item from Vector collection at the specified index
The code you provided is written in Java and demonstrates how to remove an item at a specific index from a Vector using the remove() method. Here's an explanation of the code:
- import java.util.*;: This line imports the java.util package, which contains the Vector class and other utility classes.
- public class Remove_IndexEle: This line declares a public class named Remove_IndexEle.
- public static void main(String[] args): This is the main method where the execution of the program starts. It takes an array of strings as command line arguments.
- Vector<String> vec_list = new Vector<String>();: This line declares and initializes a Vector object named vec_list that can store String values. Note that using generics (<String>) is not necessary in newer versions of Java.
- vec_list.add("Apple");: This line adds the string "Apple" to the vector vec_list using the add() method.
- vec_list.add("Banana");: This line adds the string "Banana" to the vector vec_list using the add() method.
- vec_list.add("Orange");: This line adds the string "Orange" to the vector vec_list using the add() method.
- vec_list.add("Cherry");: This line adds the string "Cherry" to the vector vec_list using the add() method.
- vec_list.add("Mango");: This line adds the string "Mango" to the vector vec_list using the add() method.
- System.out.println("Vector Elements : "+vec_list);: This line prints the elements of the vector by concatenating the string "Vector Elements :" with the vector vec_list. The println function automatically converts the vector to a string representation.
- vec_list.remove(3);: This line removes the item at index 3 from the vector vec_list using the remove() method. The element at index 3, which is "Cherry", is removed from the vector.
- System.out.println("Updated Vector Elements : "+vec_list);: This line prints the elements of the vector after the removal using the remove() method.
Source Code
import java.util.*;
public class Remove_IndexEle
{
public static void main(String[] args)
{
Vector <String> vec_list = new Vector <String>();
vec_list.add("Apple");
vec_list.add("Banana");
vec_list.add("Orange");
vec_list.add("Cherry");
vec_list.add("Mango");
System.out.println("Vector Elements : "+vec_list);
vec_list.remove(3);
System.out.println("Updated Vector Elements : "+vec_list);
}
}
Output
Vector Elements : [Apple, Banana, Orange, Cherry, Mango]
Updated Vector Elements : [Apple, Banana, Orange, Mango]