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Vector clear() Method in Java

Last Updated : 12 Dec, 2024
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The Java.util.Vector.clear() method is used to remove all the elements from a Vector. Using the clear() method only clears all the element from the vector and does not delete the vector. In other words, we can say that the clear() method is used to only empty an existing vector.

Syntax:

Vector.clear()

  • Parameters: The method does not take any parameter
  • Return Value: The function does not returns any value.

Example of Vector clear() Method

Below programs illustrate the Java.util.Vector.clear() method.

Example 1: 

Java 
// Using Vector clear() Method
import java.util.*;

public class GFG 
{
    public static void main(String args[])
    {
        // creating an empty Vector
        Vector<String> v = new Vector<String>();

        // add elements in vector
        v.add("Welcome");
        v.add("To");
        v.add("GFG");
        
        // displaying the Vector
        System.out.println("Elements in Vector : " + v);

        // clearing the vector elements
        v.clear();

        // display vector after operation
        System.out.println("Vector after Operation : " + v);
    }
}

Output
Elements in Vector : [Welcome, To, GFG]
Vector after Operation : []

Example 2: 

Java 
// Using vector clear() Method
import java.util.*;

public class GFG 
{
    public static void main(String args[])
    {
        // creating an empty Vector
        Vector<Integer> v = new Vector<Integer>();

        // adding elements in vector
        v.add(10);
        v.add(15);
        v.add(30);
        
        // displaying the Vector
        System.out.println("Vector: " + v);

        // clearing vctor
        v.clear();

        // display vector after operation
        System.out.println("The final Vector: " + v);
    }
}

Output
Vector: [10, 15, 30]
The final Vector: []



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kundankumarjha
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