Read Massage from File and Make it Upper Case in Java.

package pkg5;

import java.io.FileReader;

import java.io.IOException;

import java.io.BufferedReader;

public class Main

{

    public static void main(String[] args)

    {

        BufferedReader br = null;

        String str;

     

        try

        {

            br = new BufferedReader(new FileReader("input.txt"));

         

            while((str=br.readLine())!=null)

            {

                System.out.println("Befor: "+str+" After: "+str.toUpperCase());

            }

         

        }

        catch(IOException e)

        {

            System.out.println("Filed to Open File");

        }

    }

 

}