Java Proficiency: How to Remove List From Arraylist

Sunday 10 May 2015

We can remove all element of list from arraylist using removeAll().

import java.util.ArrayList;
import java.util.List;

public class RemoveList {

   public static void main(String[] args) {
       ArrayList<String> arr = new ArrayList<String>();
       // add element in arraylist
       arr.add("c");
       arr.add("php");
       arr.add("html");
       arr.add("java");
       // print arraylist
       System.out.println(" berfore remove arrayList is = " + arr);

       List<String> brr = new ArrayList<String>();
       brr.add("php");
       brr.add("java");

       /*
       * Removes from this list all of its elements that are
           contained in the specified collection.
       */

       arr.removeAll(brr);

       System.out.println("after remove arraylist is = "+arr);

   }

}

Output:

berfore remove arrayList is = [c, php, html, java]

after remove arraylist is = [c, html]

Create ArrayList In Java

Storing Java Object In ArrayList

How To Copy ArrayList To Array

How to Convert Array to ArrayList

How To Shallow Copy Or Clone a ArrayList

Reverse order of all elements of ArrayList

How to add all elements of a list to ArrayList

Swap elements of Java ArrayList example

Remove All Element From Arraylist Example

how To Remove Element of arraylist

How to Remove List From Arraylist

How to get sub list from ArrayList