Implement SimpleMachine

src/main/java/com/loomcom/symon/Main.java

@@ -26,6 +26,7 @@
 package com.loomcom.symon;
 
 import com.loomcom.symon.machines.MulticompMachine;
+import com.loomcom.symon.machines.SimpleMachine;
 import com.loomcom.symon.machines.SymonMachine;
 import java.util.Locale;
 import javax.swing.JOptionPane;
@@ -51,13 +52,15 @@ public class Main {
                     machineClass = SymonMachine.class;
                 } else if(machine.equals("multicomp")) {
                     machineClass = MulticompMachine.class;
+                } else if (machine.equals("simple")) {
+                    machineClass = SimpleMachine.class;
                 }
             }
         }
         
         while(true) {        
             if(machineClass == null) {
-                Object[] possibilities = {"Symon", "Multicomp"};
+                Object[] possibilities = {"Symon", "Multicomp", "Simple"};
                 String s = (String)JOptionPane.showInputDialog(
                                 null,
                                 "Please choose the machine type to be emulated:",
@@ -67,11 +70,15 @@ public class Main {
                                 possibilities,
                                 "Symon");
                 
-                
-                if(s != null && s.equals("Multicomp")) {
-                    machineClass = MulticompMachine.class;
-                } else {
-                    machineClass = SymonMachine.class;
+
+                if (s != null) {
+                    if (s.equals("Multicomp")) {
+                        machineClass = MulticompMachine.class;
+                    } else if (s.equals("Simple")) {
+                        machineClass = SimpleMachine.class;
+                    } else {
+                        machineClass = SymonMachine.class;
+                    }
                 }
             }