Java.lang.String.isEmpty() Method


Advertisements


Description

The java.lang.String.isEmpty() method returns true only if length() is 0.

Declaration

Following is the declaration for java.lang.String.isEmpty() method

public boolean isEmpty()

Parameters

NA

Return Value

This method returns true if length() is 0, else false.

Exception

NA

Example

The following example shows the usage of java.lang.String.isEmpty() method.

package com.tutorialspoint;

import java.lang.*;

public class StringDemo {

   public static void main(String[] args) {

      String str = "tutorialspoint";
      
      // prints length of string
      System.out.println("length of string = " + str.length());
   
      // checks if the string is empty or not
      System.out.println("is this string empty? = " + str.isEmpty());
   }
}

Let us compile and run the above program, this will produce the following result −

length of string = 14
is this string empty? = false

java_lang_string.htm

Advertisements