ArrayList isEmpty() in Java with example

The isEmpty() method of ArrayList in java is used to check if a list is empty or not. It returns true if the list contains no elements otherwise it returns false if the list contains any element.

Syntax: 

list_name.isEmpty()

Parameter: It does not accepts any parameter.

Returns: It returns True if the list list_name has no elements else it returns false. The return type is of datatype boolean.

Error and Exceptions: This method has no error or exceptions.

Program to demonstrate working of isEmpty() in Java:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java code to demonstrate the working of
// isEmpty() method in ArrayList
  
// for ArrayList functions
import java.util.ArrayList;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // creating an Empty Integer ArrayList
        ArrayList<Integer> arr = new ArrayList<Integer>(10);
  
        // check if the list is empty or not using fucntion
        boolean ans = arr.isEmpty();
        if (ans == true)
            System.out.println("The ArrayList is empty");
        else
            System.out.println("The ArrayList is not empty");
  
        // addition of a element to the ArrayList
        arr.add(1);
  
        // check if the list is empty or not
        ans = arr.isEmpty();
        if (ans == true)
            System.out.println("The ArrayList is empty");
        else
            System.out.println("The ArrayList is not empty");
    }
}

chevron_right






                        filter_none








Output:


The ArrayList is empty
The ArrayList is not empty




          
          
          
          

            

    

        My Personal Notes
        arrow_drop_up
    

    

        
        

            
            
        

    


Recommended Posts:
Image
Striver
Striver(underscore)79 at Codechef and codeforces D
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on  the "Improve Article" button below.