├── README.md
└── Exercises
    ├── src
        ├── App.java
        └── Exercises
        │   ├── Exercise2.txt
        │   └── Exercise2.java
    ├── .vscode
        └── settings.json
    └── README.md


/README.md:
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1 | ## Event Handling with Java GUI
2 | 


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/Exercises/src/App.java:
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1 | import Exercises.Exercise2;
2 | 
3 | public class App {
4 |     public static void main(String[] args) throws Exception {
5 |         new Exercise2();
6 |     }
7 | }
8 | 


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/Exercises/.vscode/settings.json:
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1 | {
2 |     "java.project.sourcePaths": ["src"],
3 |     "java.project.outputPath": "bin",
4 |     "java.project.referencedLibraries": [
5 |         "lib/**/*.jar"
6 |     ]
7 | }
8 | 


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/Exercises/src/Exercises/Exercise2.txt:
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1 | Crie uma aplicação que tenha um campo de texto. Registre um evento de teclado para o campo de texto e exiba o que o usuário digitou em tempo real em um rótulo ou em outro campo de texto na mesma janela.
2 | 


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/Exercises/README.md:
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 1 | ## Getting Started
 2 | 
 3 | Welcome to the VS Code Java world. Here is a guideline to help you get started to write Java code in Visual Studio Code.
 4 | 
 5 | ## Folder Structure
 6 | 
 7 | The workspace contains two folders by default, where:
 8 | 
 9 | - `src`: the folder to maintain sources
10 | - `lib`: the folder to maintain dependencies
11 | 
12 | Meanwhile, the compiled output files will be generated in the `bin` folder by default.
13 | 
14 | > If you want to customize the folder structure, open `.vscode/settings.json` and update the related settings there.
15 | 
16 | ## Dependency Management
17 | 
18 | The `JAVA PROJECTS` view allows you to manage your dependencies. More details can be found [here](https://github.com/microsoft/vscode-java-dependency#manage-dependencies).
19 | 


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/Exercises/src/Exercises/Exercise2.java:
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 1 | package Exercises;
 2 | 
 3 | import javax.swing.JFrame;
 4 | import javax.swing.JLabel;
 5 | import javax.swing.JPanel;
 6 | import javax.swing.JTextField;
 7 | import java.awt.event.KeyEvent;
 8 | import java.awt.event.KeyListener;
 9 | import java.util.logging.Handler;
10 | import java.awt.*;
11 | 
12 | public class Exercise2 extends JFrame {
13 |     // atributes
14 |     private JTextField mainTextBox;
15 |     private JTextField typedLetter;
16 |     private JTextField textShown;
17 |     private JLabel letter;
18 |     private JLabel text;
19 | 
20 |     public Exercise2() {
21 |         super("Exercise 2");
22 |         this.setDefaultCloseOperation(2);
23 |         this.setBounds(100, 100, 300, 150);
24 | 
25 |         // mainPanel - gridLayout(3 rows and 3 cols)
26 |         JPanel mainPanel = new JPanel(new GridLayout(5, 1));
27 |         this.add(mainPanel);
28 | 
29 |         // create components
30 |         mainPanel.add(new JLabel("Type here: "));
31 |         mainTextBox = new JTextField();
32 |         mainPanel.add(mainTextBox);
33 | 
34 |         mainPanel.add(new JLabel("Typed Letter: "));
35 |         letter = new JLabel();
36 |         typedLetter = new JTextField();
37 |         mainPanel.add(typedLetter);
38 |         mainPanel.add(letter);
39 | 
40 |         mainPanel.add(new JLabel("Text Shown: "));
41 |         text = new JLabel();
42 |         textShown = new JTextField();
43 |         mainPanel.add(textShown);
44 |         mainPanel.add(text);
45 | 
46 |         // set frame
47 |         this.setVisible(true);
48 | 
49 |         // event handling
50 |         Handler event = new Handler();
51 |         mainTextBox.addKeyListener(event);
52 |     }
53 | 
54 |     public class Handler implements KeyListener {
55 |          @Override
56 |         public void keyTyped(KeyEvent e) {
57 |             char keyPressed = e.getKeyChar(); // I got the value of the key pressed
58 |             letter.setText("" + keyPressed);
59 |             text.setText(mainTextBox.getText());
60 |         }
61 |         @Override
62 |         public void keyPressed(KeyEvent e) {}
63 | 
64 |         @Override
65 |         public void keyReleased(KeyEvent e) {}
66 |     }
67 | }
68 | 


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