I need ths code to run as an ifelse statement No shortcuts w

I need ths code to run as an if-else statement. No shortcuts what so ever and please ensure the spacing is correct. Please help I am not getting this to compile properly. If there is a simpler way to create this code without anything added to what is below I would greatly appreciate that as well.

import java.util.Scanner;
public class TextMsgExpander {
public static void main(String[] args) {
new TextMsgExpander().run();
}
public void run()
{
System.out.print(\"Enter text:\");
Scanner scnr = new Scanner(System.in);
String inString = scnr.nextLine();
System.out.print(\"You entered:\");
System.out.println(inString);
String message = newMessage(inString);
System.out.println();
if(inString.contains(\"IDK\"))
System.out.println(\"Replaced \\\"IDK\\\" with \\\"I don\'t know\\\".\");
if(inString.contains(\"BFF\"))
System.out.println(\"Replaced \\\"BFF\\\" with \\\"best friend forever\\\".\");
if(inString.contains(\"JK\"))
System.out.println(\"Replaced \\\"JK\\\" with \\\"just kidding\\\".\");
if(inString.contains(\"TMI\"))
System.out.println(\"Replaced \\\"TMI\\\" with \\\"too much information\\\".\");
if(inString.contains(\"TTYL\"))
System.out.println(\"Replaced \\\"TTYL\\\" with \\\"talk to you later\\\".\");
System.out.println();
System.out.println(\"Expanded: \"+message);
}
public String newMessage(String str)
{
String Str = str;
Str = Str.replace(\"BFF\", \"best friend forever\");
Str = Str.replace(\"IDK\", \"I don\'t know\");
Str = Str.replace(\"JK\", \"just kidding\");
Str = Str.replace(\"TMI\", \"too much information\");
Str = Str.replace(\"TTYL\", \"talk to you later\");
return Str;
}
}

MessageExpander.java

import java.util.Scanner;

public class MessageExpander {

   public static void main(String[] args)
   {
       //Declaring String variables
       String txtMsg,mesg,replaced ;

       //Scanner Object is used to get the inputs entered by the user
       Scanner sc=new Scanner(System.in);


       String BFF=\"best friend forever\";
       String JK=\"just kidding\";
       String IDK=\"i don\'t know\";
       String TMI=\"too much information\";
       String TTYL=\"talk to you later\";
       //Getting the inputs entered by the user.
       System.out.print(\"Enter Text :\");
       txtMsg=sc.nextLine();

       //Displaying the user entered Input String
       System.out.println(\"\ You Entered :\"+txtMsg);

       System.out.println();
       // Check whether the entered string contains Particular string or not
       if(txtMsg.contains(\"BFF\"))
       {
           txtMsg=txtMsg.replace(\"BFF\",BFF);
           System.out.println(\"Replaced \'BFF\' with \\\"\"+BFF+\"\\\"\");
       }

       // Check whether the entered string contains Particular string or not
       if(txtMsg.contains(\"JK\"))
       {
           txtMsg=txtMsg.replace(\"JK\",JK);
           System.out.println(\"Replaced \'JK\' with \\\"\"+JK+\"\\\"\");
       }

       // Check whether the entered string contains Particular string or not
       if(txtMsg.contains(\"IDK\"))
       {
           txtMsg=txtMsg.replace(\"IDK\",IDK);
           System.out.println(\"Replaced \'IDK\' with \\\"\"+IDK+\"\\\"\");
       }

       // Check whether the entered string contains Particular string or not
       if(txtMsg.contains(\"TMI\"))
       {
           txtMsg=txtMsg.replace(\"TMI\",TMI);
           System.out.println(\"Replaced \'TMI\' with \\\"\"+TMI+\"\\\"\");
       }

       // Check whether the entered string contains Particular string or not
       if(txtMsg.contains(\"TTYL\"))
       {
           txtMsg=txtMsg.replace(\"TTYL\",TTYL);
           System.out.println(\"Replaced \'TTYL\' with \\\"\"+TTYL+\"\\\"\");
       }

       System.out.println();
   //Displaying the expanded form.
System.out.println(\"Expanded :\"+txtMsg);
   }

}

______________________

Compile

Command To compile the program : javac MessageExpander.java

Run:

Command To run the program : java MessageExpander

Output:

Enter Text :You are my BFF.Bye TTYL.

You Entered :You are my BFF.Bye TTYL.

Replaced \'BFF\' with \"best friend forever\"
Replaced \'TTYL\' with \"talk to you later\"

Expanded :You are my best friend forever.Bye talk to you later.

___________Thank You