Text modifier program
 

Hi guys,
I'm new and I'm totally stuck on a question for class! Basically we have to get the user to enter a few sentences and then change the first letter of every sentence to a capital version. I'll post my code below.
(I'm not asking for the answer just some help would be nice!)

import java.util.*;

public class CH10Q3

{

    public static void main(String[] args)

    {

        String input;

        Scanner keyboard = new Scanner(System.in);

        

        System.out.println("Please enter a couple sentences");

        input = keyboard.nextLine();

        int periods=0;

        

        while(periods!=-1)

        {

            System.out.println("While Start");

            periods = input.indexOf('.', periods+3);

            System.out.println(periods);

            if(periods!=-1)

                Character.toUpperCase(input.charAt(periods));

            System.out.println("While End");

        }

        System.out.println(input);

    }

}

Re: Text modifier program
 

Okay heres a small update, I am converting my string into a buffered string so its mutable. Here is the code I have now, only problem is it goes out of range!

import java.util.*;

public class CH10Q3

{

    public static void main(String[] args)

    {

        String input;

        Scanner keyboard = new Scanner(System.in);

        

        System.out.println("Please enter a couple sentences");

        input = keyboard.nextLine();

        StringBuffer input2 = new StringBuffer(input);

        int periods=0;

        

        while(periods!=-1)

        {

            System.out.println("While Start");

            periods = input2.indexOf(".", periods+2);

            System.out.println(periods);

            if(periods!=-1)

            {

                Character.toUpperCase(input2.charAt(periods));

                System.out.println(Character.toUpperCase(input2.charAt(periods+2)));

            }

            System.out.println("While End");

        }

        System.out.println(input2);

    }

}

Any suggestions would be lovely.

Re: Text modifier program
 

Ah well I figured it out on my own.
First problem was I was trying to modify a immutable object.
Second was I was going waaay out of range.

Heres the finaly code

import java.util.*;

public class CH10Q3

{

    public static void main(String[] args)

    {

        String input;

        Scanner keyboard = new Scanner(System.in);

        

        System.out.println("Please enter a couple sentences");

        input = keyboard.nextLine();

        StringBuffer input2 = new StringBuffer(input);

        int periods=0;

        

        input2.setCharAt(0, Character.toUpperCase(input2.charAt(0)));

        

        while(periods!=-1)

        {

            periods = input2.indexOf(".", periods+2);

            if((periods!=-1)&&(periods<(input.length()-2)))

            {

                input2.setCharAt(periods+2, Character.toUpperCase(input2.charAt(periods+2)));

            }

        }

        System.out.println(input2);

    }

}

(This post is like my "I did it WOOO HOOOOO" )

Re: Text modifier program
 

That is what often happens if you not sitting on your back-side and waiting for others to solve your issue...
Nicely done

Re: Text modifier program
 

Haha, thanks. Well I see so many people asking for the answers, and that's not going to help me with my Comp. Sci. Degree... plus I want to be able to write nice software without having to ask people around me constantly for help.