Java List isEmpty() Method

The isEmpty() method of List interface returns a Boolean value 'true' if this list contains no elements.

Syntax

Parameters

Specified By

isEmpty in interface Collection<E>

Return

The isEmpty () method returns the Boolean value 'true' if this list contains no elements, else it returns false.

Example 1

import java.util.LinkedList;
import java.util.List;
public class JavaListIsEmptyExample1 {
public static void main(String[] args) {
        List<Character> list = new LinkedList<Character>();
//this methods checks whether the invoked list is empty or not
Boolean bool = list.isEmpty();
if(bool){
System.out.println("Enter elements in this list as it is empty.");
        }
else{
System.out.println("Elements are already present in this list.\nList : "+list);
        }
    }
}

Test it Now

Output:

Enter elements as this list is empty.

Example 2

import java.util.LinkedList;
import java.util.List;
public class JavaListIsEmptyExample2 {
public static void main(String[] args) {
        List<Character> list = new LinkedList<Character>();
list.add(null);
//this methods checks whether the invoked list is empty or not
Boolean bool = list.isEmpty();
//even if there are null elements it will return false
if(bool){
System.out.println("Enter elements in this list as it is empty.");
        }
else{
System.out.println("Elements are already present in this list.\nList : "+list);
        }
    }
}

Test it Now

Output:

Elements are already present in this list.
List : [null]

Next TopicJava List

← prev next →

For Videos Join Our Youtube Channel: Join Now

Feedback

Send your Feedback to [email protected]

Help Others, Please Share

Learn Latest Tutorials

Splunk

SPSS

Swagger

Transact-SQL

Tumblr

ReactJS

Regex

Reinforcement Learning

R Programming

RxJS

React Native

Python Design Patterns

Python Pillow

Python Turtle

Keras

Preparation

Aptitude

Reasoning

Verbal Ability

Interview Questions

Company Questions

Trending Technologies

Artificial Intelligence

AWS

Selenium

Cloud Computing

Hadoop

ReactJS

Data Science

Angular 7

Blockchain

Git

Machine Learning

DevOps

B.Tech / MCA

DBMS

Data Structures

DAA

Operating System

Computer Network

Compiler Design

Computer Organization

Discrete Mathematics

Ethical Hacking

Computer Graphics

Software Engineering

Web Technology

Cyber Security

Automata

C Programming

C++

Java

.Net

Python

Programs

Control System

Data Mining

Data Warehouse

^{Like/Subscribe us for latest updates or newsletter}

Java List Methods