To remove one array from another array in a java

To remove one array from another array

import java.util.ArrayList;

 public class Main 

{

   public static void main(String[] args) 

 {

      ArrayList objArray = new ArrayList();

      ArrayList objArray2 = new ArrayList();

      objArray2.add(0,"common1");

      objArray2.add(1,"common2");

      objArray2.add(2,"notcommon");

      objArray2.add(3,"notcommon1");

      objArray.add(0,"common1");

      objArray.add(1,"common2");

      objArray.add(2,"notcommon2");

      System.out.println("Array elements of array1" +objArray);

      System.out.println("Array elements of array2" +objArray2);

      objArray.removeAll(objArray2);

      System.out.println("Array1 after removing 

      array2 from array1"+objArray);

   }

}

Result:

Array elements of array1[common1, common2, notcommon2]

Array elements of array2[common1, common2, notcommon, 

notcommon1]

Array1 after removing array2 from array1[notcommon2]