How to Remove Item at a Specific Index from a Vector in Java - Step by Step Examples

How to Remove Item at a Specific Index from a Vector in Java ?

Answer

To remove an item at a specific index from a Vector in Java, you can use the remove method of the java.util.Vector class.

✐ Examples

1 Remove Item at Specific Index Using remove Method

In this example,

We start by importing the necessary class: java.util.Vector.
We create a Vector named vector and initialize it with some integer values.
We specify the index of the item we want to remove and store it in a variable named indexToRemove.
We use the remove method to remove the item at the specified index. The remove method takes the index as an argument and removes the element at that index, shifting all subsequent elements to the left.
Finally, we print the modified vector to standard output to see the result.

Java Program

import java.util.Vector;

public class Main {
    public static void main(String[] args) {
        Vector&lt;Integer&gt; vector = new Vector&lt;&gt;();
        vector.add(10);
        vector.add(20);
        vector.add(30);
        vector.add(40);
        vector.add(50);
        int indexToRemove = 2;
        vector.remove(indexToRemove);
        System.out.println("Vector after removing the item at index " + indexToRemove + ": " + vector);
    }
}

Output

Vector after removing the item at index 2: [10, 20, 40, 50]

2 Remove Item at Specific Index Using a Custom Method

In this example,

We start by importing the necessary class: java.util.Vector.
We define a custom method named removeAtIndex that takes a Vector and an index as parameters.
Inside the method, we check if the index is valid (i.e., within the bounds of the vector).
If the index is valid, we use the remove method to remove the item at the specified index, shifting all subsequent elements to the left.
We create a Vector named vector and initialize it with some integer values.
We specify the index of the item we want to remove and store it in a variable named indexToRemove.
We call the removeAtIndex method, passing vector and indexToRemove as arguments.
Finally, we print the modified vector to standard output to see the result.

Java Program

import java.util.Vector;

public class Main {
    public static void removeAtIndex(Vector&lt;Integer&gt; vector, int index) {
        if (index >= 0 && index < vector.size()) {
            vector.remove(index);
        }
    }

    public static void main(String[] args) {
        Vector&lt;Integer&gt; vector = new Vector&lt;&gt;();
        vector.add(10);
        vector.add(20);
        vector.add(30);
        vector.add(40);
        vector.add(50);
        int indexToRemove = 2;
        removeAtIndex(vector, indexToRemove);
        System.out.println("Vector after removing the item at index " + indexToRemove + ": " + vector);
    }
}

Output

Vector after removing the item at index 2: [10, 20, 40, 50]

Summary

In this tutorial, we learned How to Remove Item at a Specific Index from a Vector in Java language with well detailed examples.

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How to Remove Item at a Specific Index from a Vector in Java - Step by Step Examples

How to Remove Item at a Specific Index from a Vector in Java ?

Answer

✐ Examples

1 Remove Item at Specific Index Using remove Method

Java Program

Output

2 Remove Item at Specific Index Using a Custom Method

Java Program

Output

Summary

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