Added commands as cases.

src/TextEditor.java

@@ -1,3 +1,5 @@
+import java.util.ArrayList;
+
 public class TextEditor {
 
     private SystemInput sysInput;
@@ -18,14 +20,30 @@ public class TextEditor {
             switch (command[0]) {
                 case "ADD":
                     break;
-                case "REMOVE":
+                case "DEL":
+                    break;
+                case "DUMMY":
+                    text.dummy();
+                    break;
+                case "EXIT":
+                    break;
+                case "FORMAT RAW":
+                    break;
+                case "FORMAT FIX":
+                    break;
+                case "INDEX":
+                    ArrayList<String> index = text.index();
+                    break;
+                case "PRINT":
+                    break;
+                case "REPLACE":
                     break;
                 default:
                     System.out.println("Command not found. Try again");
                     break;
             }
 
-        } while ("exit".equals(command[0]));
+        } while ("EXIT".equals(command[0]));
     }
 
 }