Java.lang.String.isEmpty() Method

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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



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