Java Collection Tutorial - Java Vector.removeAll(Collection <?> c)

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Syntax

Vector.removeAll(Collection <?> c) has the following syntax.

public boolean removeAll(Collection <?> c)

Example

In the following code shows how to use Vector.removeAll(Collection <?> c) method.

//www  . j a  v  a 2 s .  c  o  m
import java.util.Vector;

public class Main {
   public static void main(String[] args) {
           
      Vector  vec = new Vector  (4);

      
      vec.add(4);
      vec.add(3);
      vec.add(2);
      vec.add(1);

      System.out.println(vec);
      System.out.println("Size of the vector: "+vec.size());
      
      // let us remove all the elements
      System.out.println("Removing all the elements"); 
      vec.removeAll(vec);
      System.out.println("Size of the vector: "+vec.size());       
   }     
}

The code above generates the following result.

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