UpperCase problem

[logieen]

Hello everyone .....

I am new in java i start learn it from 3 weeks ago so i don't know much abut java .
i want to write a program that ask the user to enter his/her name and the program will print the first name as it is and the last name will be in UpperCase .

the code it print this error " <identifier> expected "

import javax.swing.*;
public class PrintUser
  {

    public static void main(String[]args)
    {
        String names=JOptionPane.showInputDialog(null,"Enter your Name :");
        System.out.println(names);
        UserName r=new UserName();
      JOptionPane.showMessageDialog(null,names);
     System.out.println();
    }
    
}

class UserName
{

   char ch;
   char prevCh;
   	String names;  
          int i;        
       prevCh='.';
          void r(String[]args);
  {
  
          for (i=0;i<names.length();i++ ) 
          	{
             ch = names.charAt(i);
             if ( Character.isLetter(ch)  &&  ! Character.isLetter(prevCh) )
                System.out.print( Character.toUpperCase(ch) );
             else
                System.out.print(ch);
             prevCh = ch;  
           }
         
       }
        
        
}

[Norm]

When you get errors it is VERY IMPORTANT that you copy the full text of the message and post it here. The error message will have the line number in your program where the error occured.
It looks like the following is outside of a method.

prevCh='.';