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