Java Vector removeAllElements() Method with Examples

by Online Tutorials Library July 22, 2022

Java Vector removeAllElements() Method

The removeAllElements() method of Java Vector class is used to remove all elements from the vector and set the size of the vector to zero.

Syntax

Following is the declaration of removeAllElements() method:

Parameter

This method does not accept any parameter.

Return

This method has return type void so, it does not return anything.

Exceptions

Compatibility Version

Java 1.2 and above

Example 1

  import java.util.Vector;  public class VectorRemoveAllElementsExample1 {    public static void main(String arg[]) {  //Create an empty Vector            Vector<String> vc = new Vector<>();        //Add elements in the vector by using add() method        vc.add(“A”);        vc.add(“B”);        vc.add(“C”);        //Print the size of vector        System.out.println(“Size of Vector before removeAllElements() method: “+vc.size());        //removeAllElements from the vector        vc.removeAllElements();        System.out.println(“Size of Vector after removeAllElements() method: “+vc.size());              }  }  

Test it Now

Output:

Size of Vector before removeAllElements() method: 3  Size of Vector after removeAllElements() method: 0

Example 2

  import java.util.Vector;  public class VectorRemoveAllElementsExample2 {    public static void main(String arg[]) {  //Create an empty Vector with initial capacity of 5        Vector<Integer> vecObject = new Vector<Integer>(5);  //Add values in the vector  vecObject.add(3);  vecObject.add(5);  vecObject.add(2);  vecObject.add(4);  vecObject.add(1);        System.out.println(“Elements of Vector is: “+vecObject);        //removeAllElements from the vector        vecObject.removeAllElements();              //Display the vector elements        System.out.println(“Elements of Vector after removeAllElements(): “+vecObject);        System.out.println(“Size of Vector after removeAllElements() method: “+vecObject.size());              }  }  

Test it Now

Output:

Elements of Vector is: [3, 5, 2, 4, 1]  Elements of Vector after removeAllElements(): []  Size of Vector after removeAllElements() method: 0

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