[Example] Migrate example to the new module

example/src/main/java/Main.java

@@ -2,9 +2,16 @@ import imgui.ImGui;
 import imgui.ImGuiIO;
 import imgui.app.Application;
 import imgui.app.Configuration;
+import imgui.extension.imnodes.ImNodes;
 import imgui.flag.ImGuiConfigFlags;
+import imgui.flag.ImGuiInputTextFlags;
+import imgui.type.ImString;
+
+public class Main extends Application {
+    private final ImString str = new ImString(5);
+    private final float[] flt = new float[1];
+    private int count = 0;
 
-public final class Main extends Application {
     @Override
     protected void configure(final Configuration config) {
         config.setTitle("Example Application");
@@ -20,11 +27,29 @@ public final class Main extends Application {
         io.addConfigFlags(ImGuiConfigFlags.DockingEnable);      // Enable Docking
         io.addConfigFlags(ImGuiConfigFlags.ViewportsEnable);    // Enable Multi-Viewport / Platform Windows
         io.setConfigViewportsNoTaskBarIcon(true);
+
+        ImNodes.initialize();
+    }
+
+    @Override
+    protected void disposeImGui() {
+        ImNodes.shutdown();
+        super.disposeImGui();
     }
 
     @Override
     public void process() {
-        ImGui.text("Hello, World");
+        ImGui.text("Hello, World!");
+        if (ImGui.button("Save")) {
+            count++;
+        }
+        ImGui.sameLine();
+        ImGui.text(String.valueOf(count));
+        ImGui.inputText("string", str, ImGuiInputTextFlags.CallbackResize);
+        ImGui.sliderFloat("float", flt, 0, 1);
+        ImGui.separator();
+        ImGui.text("Extra");
+        Extra.show(this);
     }
 
     public static void main(final String[] args) {