Thread: I'm a java beginnier

i'm trying to write a program that displays your initials after you input your full name, only using the string methods .

I'm at a loss, can anyone help ??

I've got this so far, but the program has to be for ANY name

import java.util.Scanner;
public class Initials {
public static void main(String[] args) {

Scanner input = new Scanner (System.in);

System.out.println("Please enter your FULL name");

String name=input.nextLine();
String index = name.substring(0,1);



System.out.println(index);

This just gives the first initial, but i dont know what to do if the user enters three names (First , middle and last names)

@reddevilggg: Kindly use

tags to enclose your code or read the forums rules.
Okay, so far now, what you have tried is good enough for a beginner. Forexample,
Andrew Hawks Jhonson is the input.
Now you will have to get AHJ.
First substring, you got already.
Now find the space as there are many functions provided by String.
You can easily find the space and then get the index of that location. Add one and get the Character/substring if there is something.
And so on keep tracking unless you are done with the string buffer/got null.

Sorry about not enclosing the code in tags.

You say
"Now find the space as there are many functions provided by String.
You can easily find the space and then get the index of that location. Add one and get the Character/substring if there is something."

This is my problem, i understand the logic and i know what i want to do, but i'm still at a loss how to do it.
How do i find the functions provided by the String ??

I need to find the spaces then charAt +1, maybe.

Cheers. i'll take a look

Thanks again

i'm using the indexOf method because its part of a tutorial i'm following to make sure that i'm understanding how to use it (ironic, i know). It gives the poistion of the space +1, which will give the initial not the space. I've checked the output and it does give the correct position for the initial, but as a number, because i'm incorrectly using int (i think).

I dont understand your last question

And what method gives you a part of a String given a position?

yeah, i understand the logic behind it. Thats as far as it goes. I been trying to include a char method, but i just keep get red errors. I'm lost.

This is it so far, i just do not understand what i need to do

import java.util.Scanner;
public class Initials {
    public static void main(String[] args) {
 
        Scanner input = new Scanner (System.in);
        System.out.println("Please enter your FULL name");
        String name=input.nextLine();
 
 
        String index = name.substring(0,1);
        int mid = name.indexOf(" ") +1;
        int last = name.lastIndexOf(" ") +1;
        String midInitial = name.substring(mid);
 
 
        System.out.println(index + midInitial);

I don't think that lastIndexOf() is going to get you anything useful, since there's only going to be one space.

There is going to be 2 spaces as i have to assume that the user input 3 names, first, middle and last name.

I've tried loads of things, nothing works for me, the longer i stay on this tutorial the less i seem to know, i feel like i'm going backwards.

Thanks for helping, but i dont think i'm going to get it.

I've tried the substring and this is the best i can do

Scanner input = new Scanner (System.in);
System.out.println("Please enter your FULL name");
String name=input.nextLine();

String index = name.substring(0,1);
int mid = name.indexOf(" ") +1;
int last = name.lastIndexOf(" ") +1;

System.out.println(index + mid + last);
System.out.println(name.substring(mid, last +1));

The output is

Please enter your FULL name
John Paul Jones
J510
Paul J

Which shows the first initial, then first space +1 and second space +1. Then what is inclusive of the name substring. This is the best i can do after hours of playing with it. Can you help ??

Yeah the reason is only index is a String variable and mid, last are integer variables. As far as i can guess, mid and last are index of array where that character is. You must find out that character and print that.
Like;
String middle=name.substring(mid, mid+1) etc

Thank you both for your help, and due to your help i've done it . Thanks Again