Apache WordUtils.capitalize not doing its job

Question

I'm trying to capitalize the first character of a string. I've seen other articles on stack overflow, and tried the Apache common packages. However, the output stays lower case, and unmodified. Here's my code;

package name;

import java.util.Scanner;

import java.lang.Object;

import org.apache.commons.lang3.text.WordUtils;

public class Name {


public static void main(String[] args){


    Scanner input = new Scanner(System.in);

    System.out.println("What is your first name?");
    String first = input.nextLine();

    System.out.println("What is your last name?");
    String last = input.nextLine();

    String full = (first + " " + last);

    WordUtils.capitalize(full);

    System.out.println("Your name is " + full);

    input.close();
    }

}

I've also tried

    System.out.println("What is your first name?");
    String first = input.nextLine();
            WordUtils.capitalize(first);

    System.out.println("What is your last name?");
    String last = input.nextLine();
            WordUtils.capitalize(last);     

    System.out.println("Your name is " + first + last);

I tried using capitalzieFully, but that yielded no results either. (I'm aware of Object not being used, I just tried importing that as a test).

Answer 1

String is immutable in java.

 first= WordUtils.capitalize(first);

So you have re assign it to first that returned by the capitalize method.

    String first= "test";
    WordUtils.capitalize(first); 
   //Above method returns a new String,you are not receiving that

    // Still first is "test" because String is immutable.
     first= WordUtils.capitalize(first);  
    //Now  first  = "TEST"

And also do the same in remaining places.