Mine

 
 import apcslib.*;
 import chn.util.*;
 import java.util.*;
 
public class Shorthand 
{
    
    public static void main(String[] args)
    {
       
       
           		ConsoleIO console = new ConsoleIO();
            
				char characterExit;
				
				String userInput;
				
				String sr1;
				
		

            do
            {
            
            
            
                System.out.println("Please type an English sentence or phrase and then press <Enter>. ");
                userInput= console.readLine();
				characterExit = userInput.charAt(0);
				
        
        		StringTokenizer sr = new StringTokenizer(userInput,"\\w",true);
                   
                                
                    while(sr.hasMoreTokens())
                    {
                         sr1 = sr.nextToken();
                                               
           				if(sr1.equalsIgnoreCase("and"))
                  		{
                  			sr1 = sr1.replaceAll("and", "&");
                  		}
               
                 		if(sr1.equalsIgnoreCase("to"))
                  		{
                  			sr1 = sr1.replaceAll("to", "2");
                  		}
                  		
                  		if(sr1.equalsIgnoreCase("you"))
                  		{
                  			sr1 = sr1.replaceAll("you", "u");
                  		}
                                   
  				 	    if(sr1.equalsIgnoreCase("for"))
                  		{
                  			sr1 = sr1.replaceAll("for", "4");
                  		}           
						
						 //userInput = userInput.replaceAll("[aeiouAEIOU]", "");
						
					
								          
             		 }
             		 
            	 		
						System.out.println(userInput);	 
                     
            //enter Q or q to exit
            }while(!(characterExit == 'Q' || characterExit == 'q'));
       
       
       
    }
}