Add example network files and update interactive console commands for improved usability

src/main/java/net/berack/upo/valpre/InteractiveConsole.java

@@ -39,12 +39,11 @@ public class InteractiveConsole {
     /**
      * Run the interactive net builder.
      */
-    public Net runNetBuilder() {
+    public Net run() {
         while (true) {
             try {
-                var choice = choose("Choose the next step to do:",
-                        "Add a node", "Add a connection", "Print Nodes", "Save the net", "Load net", "Clear",
-                        "Exit");
+                var choice = choose(this.net + "\nChoose the next step to do:",
+                        "Add a node", "Add a connection", "Save the net", "Load net", "Clear", "Exit");
                 switch (choice) {
                     case 1 -> {
                         var node = this.buildNode();
@@ -58,8 +57,9 @@ public class InteractiveConsole {
                         var targetNode = this.net.getNode(target);
                         this.net.addConnection(sourceNode, targetNode, weight);
                     }
-                    case 3 -> this.out.println(this.net);
-                    case 4 -> this.net.save(ask("Enter the filename: "));
+                    case 3 -> this.net.save(ask("Enter the filename: "));
+                    case 4 -> this.net = Net.load(ask("Enter the filename: "));
+                    case 5 -> this.net = new Net();
                     default -> {
                         this.scanner.close();
                         return this.net;

src/main/java/net/berack/upo/valpre/Main.java

@@ -31,7 +31,7 @@ public class Main {
                     var plot = new Plot(csv);
                     plot.show();
                 }
-                case "net" -> new InteractiveConsole().runNetBuilder();
+                case "interactive" -> new InteractiveConsole().run();
                 default -> exit("Invalid program!");
             }
         } catch (Exception e) {
@@ -83,11 +83,11 @@ public class Main {
             var uri = Main.class.getProtectionDomain().getCodeSource().getLocation().toURI();
             var name = new File(uri).getName();
             System.err.println(message);
-            System.out.println("Usage: java -jar " + name + ".jar [simulation|plot|net] [args]");
+            System.out.println("Usage: java -jar " + name + ".jar [simulation|plot|interactive] [args]");
             System.out.println("simulation args: -net <net> [-csv <csv>] [-runs <runs>] [-seed <seed>]"
                     + "[-p] [-end <end>] [-i <indices>]");
             System.out.println("plot args: -csv <csv>");
-            System.out.println("net args: none");
+            System.out.println("interactive: no args needed");
             System.exit(1);
         } catch (URISyntaxException e) {
             e.printStackTrace();