Java String length() method

Java String length() method returns length of the characters in a String.

Syntax:

public int length()

Returns

It returns length of the characters

Java String length() method example 1

         public class JavaStringLengthEx1
    { 
          public static void main(String args[])
       { 
       String str1=""; 
       String str2="Java World"; 
       String str3="tutorialsandexample";
       System.out.println("string length is: "+str1.length());
       System.out.println("string length is: "+str2.length());
       System.out.println("string length is: "+str3.length());
      
      }
    }

Output:

string length is: 0
string length is: 10
string length is: 19

Java String length() method example 2

    public class JavaStringLengthEx2
{ 
        public static void main(String[] args)
{ 
            String aboutMe = "Hello I am Roy NK"; 
            if(aboutMe.length()>0) { 
                System.out.println("Its looking Good and length of About Me is: "+aboutMe.length()); 
            } 
            aboutMe = ""; 
            if(aboutMe.length()==0) { 
                System.out.println("About Me must not be empty: "+aboutMe.length()); 
            } 
        } 
    }

Output:

Its looking Good and length of About Me is: 17
About Me must not be empty: 0