What is the Vector.removeAllElements method in Java?

The Vector class is a growable array of objects. Vector elements can be accessed using an integer index. The size of a Vector can be increased or decreased.

The removeAllElements method of the Vector class removes all the elements present in the vector object.

Syntax

public void removeAllElements()

Parameters

This method does not take any input parameters.

Return value

This method does not return any value.

Code

import java.util.Vector;
class RemoveAll {
public static void main( String args[] ) {
// Creating Vector
Vector<Integer> vector = new Vector<>();
// add elememts
vector.add(1);
vector.add(2);
vector.add(3);
System.out.println("The Vector is: " + vector);
vector.removeAllElements();
System.out.println("After clearing the Vector is : " + vector);
}
}

Explanation

In the code above:

  • In line 5, we create a vector object.

  • In lines 8 to 10, we add three elements (1,2,3) to the created vector object.

  • In line 14, we remove the elements present in the vector object using the removeAllElements method.

  • After calling the removeAllElements method, the vector object becomes empty.

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