Add 'Counting the Number of Characters' GUI version

- Repackaged console and gui to keep both
- Added the UML Diagram for GUI version

Author: durimkryeziu

characters-count/UML Diagram - GUI.png

@@ -1,11 +1,21 @@
 plugins {
-    id 'java'
+    id 'application'
+    id 'org.openjfx.javafxplugin' version '0.1.0'
 }
 
 repositories {
     mavenCentral()
 }
 
+javafx {
+    version = "21"
+    modules = [ 'javafx.controls' ]
+}
+
+application {
+    mainClass.set('com.craftsmanshipinsoftware.charscnt.gui.Main')
+}
+
 dependencies {
     testImplementation(libs.assertj.core)
     testImplementation(libs.junit.jupiter)

characters-count/build.gradle

@@ -1,4 +1,4 @@
-package com.craftsmanshipinsoftware.count;
+package com.craftsmanshipinsoftware.charscnt.console;
 
 import java.io.InputStream;
 import java.io.PrintStream;

characters-count/src/main/java/com/craftsmanshipinsoftware/count/CharactersCounter.java renamed to characters-count/src/main/java/com/craftsmanshipinsoftware/charscnt/console/CharactersCounter.java

@@ -1,9 +1,10 @@
-package com.craftsmanshipinsoftware.count;
+package com.craftsmanshipinsoftware.charscnt.console;
 
 public class Main {
 
   public static void main(String[] args) {
     CharactersCounter charactersCounter = new CharactersCounter(System.in, System.out);
     charactersCounter.displayCharactersCount();
   }
+
 }

characters-count/src/main/java/com/craftsmanshipinsoftware/count/Main.java renamed to characters-count/src/main/java/com/craftsmanshipinsoftware/charscnt/console/Main.java

@@ -0,0 +1,22 @@
+package com.craftsmanshipinsoftware.charscnt.gui;
+
+final class CharactersCount {
+
+  private final String input;
+
+  private CharactersCount(String input) {
+    if (input == null || input.isBlank()) {
+      throw new IllegalArgumentException("input must not be blank");
+    }
+    this.input = input;
+  }
+
+  static CharactersCount of(String input) {
+    return new CharactersCount(input);
+  }
+
+  @Override
+  public String toString() {
+    return "%s has %d characters.".formatted(this.input, this.input.length());
+  }
+}

characters-count/src/main/java/com/craftsmanshipinsoftware/charscnt/gui/CharactersCount.java

@@ -0,0 +1,19 @@
+package com.craftsmanshipinsoftware.charscnt.gui;
+
+import javafx.application.Application;
+import javafx.scene.Scene;
+import javafx.stage.Stage;
+
+public class CharactersCountApplication extends Application {
+
+  @Override
+  public void start(Stage stage) {
+    CharactersCountViewModel viewModel = new CharactersCountViewModel();
+    CharactersCountView view = new CharactersCountView(viewModel);
+    Scene scene = new Scene(view, 400, 200);
+    stage.setTitle("Counting the Number of Characters");
+    stage.setScene(scene);
+    stage.show();
+  }
+
+}

characters-count/src/main/java/com/craftsmanshipinsoftware/charscnt/gui/CharactersCountApplication.java

@@ -0,0 +1,35 @@
+package com.craftsmanshipinsoftware.charscnt.gui;
+
+import javafx.geometry.Insets;
+import javafx.geometry.Pos;
+import javafx.scene.control.Label;
+import javafx.scene.control.TextField;
+import javafx.scene.layout.VBox;
+
+final class CharactersCountView extends VBox {
+
+  private final TextField inputTextField = new TextField();
+
+  private final Label outputLabel = new Label();
+
+  private final CharactersCountViewModel viewModel;
+
+  CharactersCountView(CharactersCountViewModel viewModel) {
+    this.viewModel = viewModel;
+    createView();
+    bindViewModel();
+  }
+
+  private void createView() {
+    setSpacing(10);
+    setAlignment(Pos.CENTER);
+    setPadding(new Insets(10, 20, 10, 20));
+    this.getChildren().addAll(new Label("What is the input string?"), this.inputTextField, this.outputLabel);
+  }
+
+  private void bindViewModel() {
+    this.inputTextField.textProperty().bindBidirectional(this.viewModel.inputProperty());
+    this.outputLabel.textProperty().bind(this.viewModel.outputProperty());
+    this.viewModel.inputProperty().addListener((obs, ov, nv) -> this.viewModel.countInputCharacters());
+  }
+}

characters-count/src/main/java/com/craftsmanshipinsoftware/charscnt/gui/CharactersCountView.java

@@ -0,0 +1,29 @@
+package com.craftsmanshipinsoftware.charscnt.gui;
+
+import javafx.beans.property.SimpleStringProperty;
+import javafx.beans.property.StringProperty;
+
+final class CharactersCountViewModel {
+
+  private final StringProperty input = new SimpleStringProperty();
+
+  private final StringProperty output = new SimpleStringProperty();
+
+  StringProperty inputProperty() {
+    return this.input;
+  }
+
+  StringProperty outputProperty() {
+    return this.output;
+  }
+
+  void countInputCharacters() {
+    String inputValue = this.input.getValue();
+    if (inputValue == null || inputValue.isBlank()) {
+      this.output.set("Please enter some input string.");
+    } else {
+      this.output.set(CharactersCount.of(inputValue).toString());
+    }
+  }
+
+}

characters-count/src/main/java/com/craftsmanshipinsoftware/charscnt/gui/CharactersCountViewModel.java

@@ -0,0 +1,11 @@
+package com.craftsmanshipinsoftware.charscnt.gui;
+
+import javafx.application.Application;
+
+public class Main {
+
+  public static void main(String[] args) {
+    Application.launch(CharactersCountApplication.class);
+  }
+
+}

characters-count/src/main/java/com/craftsmanshipinsoftware/charscnt/gui/Main.java

@@ -1,4 +1,4 @@
-package com.craftsmanshipinsoftware.count;
+package com.craftsmanshipinsoftware.charscnt.console;
 
 import static org.assertj.core.api.Assertions.assertThat;