Java String isEmpty()

The java string isEmpty() method checks if this string is empty or not. It returns true, if length of string is 0 otherwise false. In other words, true is returned if string is empty otherwise it returns false.

The isEmpty() method of String class is included in java string since JDK 1.6.

Internal implementation

public boolean isEmpty() {
        return value.length == 0;
    }

Signature

The signature or syntax of string isEmpty() method is given below:

Returns

true if length is 0 otherwise false.

Since

1.6

Java String isEmpty() method example

public class IsEmptyExample{
public static void main(String args[]){
String s1="";
String s2="javatpoint";

System.out.println(s1.isEmpty());
System.out.println(s2.isEmpty());
}}

Test it Now

true
false

Java String isEmpty() Method Example 2

public class IsEmptyExample2 {
	public static void main(String[] args) {
		String s1="";  
		String s2="Javatpoint";  		  
		// Either length is zero or isEmpty is true
		if(s1.length()==0 || s1.isEmpty())
			System.out.println("String s1 is empty");
		else System.out.println("s1");		
		if(s2.length()==0 || s2.isEmpty())
			System.out.println("String s2 is empty");
		else System.out.println(s2);
	}
}

String s1 is empty
Javatpoint

Next TopicJava String join()

« prev next »

For Videos Join Our Youtube Channel: Join Now

Help Others, Please Share

Learn Latest Tutorials

PostgreSQL

Solr

MongoDB

Gimp

Verilog

Teradata

PhoneGap

Gmail

Vue.js

PLC

Illustrator

Preparation

Aptitude

Reasoning

Verbal A.

Interview

Company

Trending Technologies

AWS

Selenium

Cloud

Hadoop

ReactJS

D. Science

Angular 7

Blockchain

Git

DevOps

B.Tech / MCA

DBMS

DAA

C. Network

Compiler D.

COA

D. Math.

E. Hacking

C. Graphics

Software E.

Web Tech.

Cyber Sec.

Automata

C++

Java

.Net

Python

Programs

Control S.

Data Mining

Javatpoint Services

JavaTpoint offers too many high quality services. Mail us on hr@javatpoint.com, to get more information about given services.

Website Designing
Website Development
Java Development
PHP Development
WordPress
Graphic Designing
Logo
Digital Marketing
On Page and Off Page SEO
PPC
Content Development
Corporate Training
Classroom and Online Training
Data Entry

Training For College Campus

JavaTpoint offers college campus training on Core Java, Advance Java, .Net, Android, Hadoop, PHP, Web Technology and Python. Please mail your requirement at hr@javatpoint.com.
Duration: 1 week to 2 week

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