Remove Empty ArrayList Elements in Java

Hello, Coders in this tutorial, we will learn how to remove empty ArrayList elements in Java.

Explanation:

While accessing the array, update the element by removing empty array elements in java.

To do this we need to create an array with elements and null/empty values. So in the example below, I have created an array with two null values in it.

we will create a new ArrayList to store the values (List<String>game).

game={“GRAND”, null, “THEFT”, null, “AUTO”,”V” }

Now we will use removeIf() method : The removeIf() method is used to remove all those elements from Array which satisfies a given predicate filter condition passed as a parameter to the method.

and we will also use Objects.isNull(), So what this method will do is remove any null/empty values in an array.

 

Now we get our final results.

Final result [GRAND, THEFT, AUTO, V]

Program to Remove Empty/Null ArrayList Elements in Java

import java.util.Arrays;
import java.util.List;
import java.util.ArrayList;
import java.util.Objects;

class Main
{
  // Program to remove null values from a list in Java 8
  public static void main(String args[])
  {
    List<String> game = new ArrayList<>(
      Arrays.asList("GRAND", null, "THEFT", null, "AUTO","V"));

    // using removeIf() + Objects.isNull()
    game.removeIf(Objects::isNull);

    System.out.println(game);
  }
}

INPUT:

{"GRAND", null, "THEFT", null, "AUTO","V" }

OUTPUT:

[GRAND, THEFT, AUTO, V]

You may also read:

• Working with ArrayList in Java ( Adding,Removing elements)
• How to Modify Element or Elements of an ArrayList in Java