first commit

Awesome_API/.vscode/settings.json

@@ -0,0 +1,7 @@
+{
+    "java.project.sourcePaths": ["src"],
+    "java.project.outputPath": "bin",
+    "java.project.referencedLibraries": [
+        "lib/**/*.jar"
+    ]
+}

Awesome_API/README.md

@@ -0,0 +1,18 @@
+## Getting Started
+
+Welcome to the VS Code Java world. Here is a guideline to help you get started to write Java code in Visual Studio Code.
+
+## Folder Structure
+
+The workspace contains two folders by default, where:
+
+- `src`: the folder to maintain sources
+- `lib`: the folder to maintain dependencies
+
+Meanwhile, the compiled output files will be generated in the `bin` folder by default.
+
+> If you want to customize the folder structure, open `.vscode/settings.json` and update the related settings there.
+
+## Dependency Management
+
+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).

Awesome_API/src/Main.java

@@ -0,0 +1,334 @@
+import java.awt.*;
+import java.awt.event.*;
+import java.io.*;
+import java.net.*;
+import java.util.regex.*;
+import javax.swing.*;
+import javax.swing.border.EmptyBorder;
+
+public class Main extends JFrame {
+
+    // Cores do Design Moderno
+    private static final Color COLOR_BG_TOP = new Color(138, 180, 248);
+    private static final Color COLOR_BG_BOTTOM = new Color(25, 103, 210);
+    private static final Color COLOR_CARD = new Color(255, 255, 255, 220);
+    private static final Color COLOR_BTN_PRIMARY = new Color(242, 186, 45);
+    private static final Color COLOR_BTN_SECONDARY = new Color(219, 68, 55);
+
+    // Dados limpos
+    private String[] moedaDisplay = {
+        "Dólar Americano (USD)", "Euro (EUR)", "Real Brasileiro (BRL)", 
+        "Libra Esterlina (GBP)", "Iene Japonês (JPY)", "Dólar Canadense (CAD)", 
+        "Dólar Australiano (AUD)", "Franco Suíço (CHF)"
+    };
+    private String[] moedaAbrev = {"USD", "EUR", "BRL", "GBP", "JPY", "CAD", "AUD", "CHF"};
+
+    private JComboBox<String> cmbFrom;
+    private JComboBox<String> cmbTo;
+    private JTextField txtValue;
+    private JLabel lblResult;
+    private JLabel lblResultSub;
+
+    // Texto de Exemplo (Placeholder)
+    private final String PLACEHOLDER_TEXT = "Ex: 100.00";
+
+    public Main() {
+        setTitle("Conversor de Moedas");
+        setSize(420, 750);
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        setLocationRelativeTo(null);
+
+        // Painel Principal com Gradiente Azul
+        JPanel mainPanel = new JPanel() {
+            @Override
+            protected void paintComponent(Graphics g) {
+                super.paintComponent(g);
+                Graphics2D g2 = (Graphics2D) g.create();
+                g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+                GradientPaint gp = new GradientPaint(0, 0, COLOR_BG_TOP, 0, getHeight(), COLOR_BG_BOTTOM);
+                g2.setPaint(gp);
+                g2.fillRect(0, 0, getWidth(), getHeight());
+                g2.dispose();
+            }
+        };
+        mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
+        mainPanel.setBorder(new EmptyBorder(20, 20, 20, 20));
+        setContentPane(mainPanel);
+
+        // --- TÍTULO ---
+        JLabel title = new JLabel("Conversor de Moedas", SwingConstants.CENTER);
+        title.setFont(new Font("Segoe UI", Font.BOLD, 30));
+        title.setForeground(Color.WHITE);
+        title.setAlignmentX(Component.CENTER_ALIGNMENT);
+        mainPanel.add(title);
+        mainPanel.add(Box.createVerticalStrut(20));
+
+        // --- CARTÃO 1: SELEÇÃO DE MOEDAS ---
+        RoundedPanel cardMoedas = new RoundedPanel();
+        cardMoedas.setLayout(new BoxLayout(cardMoedas, BoxLayout.Y_AXIS));
+        
+        JLabel lblDe = new JLabel("Converter De:");
+        lblDe.setFont(new Font("Segoe UI", Font.PLAIN, 14));
+        lblDe.setForeground(Color.DARK_GRAY);
+        
+        cmbFrom = new JComboBox<>(moedaDisplay);
+        styleComboBox(cmbFrom);
+        
+        JLabel lblPara = new JLabel("Para:");
+        lblPara.setFont(new Font("Segoe UI", Font.PLAIN, 14));
+        lblPara.setForeground(Color.DARK_GRAY);
+        
+        cmbTo = new JComboBox<>(moedaDisplay);
+        styleComboBox(cmbTo);
+        cmbTo.setSelectedIndex(2); // Padrão BRL
+
+        JPanel pnlDe = new JPanel(new FlowLayout(FlowLayout.LEFT)); pnlDe.setOpaque(false); pnlDe.add(lblDe);
+        JPanel pnlPara = new JPanel(new FlowLayout(FlowLayout.LEFT)); pnlPara.setOpaque(false); pnlPara.add(lblPara);
+
+        cardMoedas.add(pnlDe);
+        cardMoedas.add(cmbFrom);
+        cardMoedas.add(Box.createVerticalStrut(15));
+        cardMoedas.add(pnlPara);
+        cardMoedas.add(cmbTo);
+        
+        mainPanel.add(cardMoedas);
+        mainPanel.add(Box.createVerticalStrut(15));
+
+        // --- CARTÃO 2: QUANTIDADE COM PLACEHOLDER ---
+        RoundedPanel cardValor = new RoundedPanel();
+        cardValor.setLayout(new BoxLayout(cardValor, BoxLayout.Y_AXIS));
+        
+        JLabel lblVal = new JLabel("Quantidade a Converter:");
+        lblVal.setFont(new Font("Segoe UI", Font.PLAIN, 14));
+        lblVal.setForeground(Color.DARK_GRAY);
+        JPanel pnlVal = new JPanel(new FlowLayout(FlowLayout.LEFT)); pnlVal.setOpaque(false); pnlVal.add(lblVal);
+        
+        // Configuração do Placeholder
+        txtValue = new JTextField(PLACEHOLDER_TEXT);
+        txtValue.setForeground(Color.GRAY); // Cor de texto fantasma
+        styleTextField(txtValue);
+        
+        // Evento para limpar o placeholder quando se clica
+        txtValue.addFocusListener(new FocusAdapter() {
+            @Override
+            public void focusGained(FocusEvent e) {
+                if (txtValue.getText().equals(PLACEHOLDER_TEXT)) {
+                    txtValue.setText("");
+                    txtValue.setForeground(Color.BLACK); // Volta à cor normal para o user escrever
+                }
+            }
+
+            @Override
+            public void focusLost(FocusEvent e) {
+                if (txtValue.getText().isEmpty()) {
+                    txtValue.setForeground(Color.GRAY);
+                    txtValue.setText(PLACEHOLDER_TEXT); // Volta o texto fantasma se não escreverem nada
+                }
+            }
+        });
+        
+        cardValor.add(pnlVal);
+        cardValor.add(txtValue);
+        mainPanel.add(cardValor);
+        mainPanel.add(Box.createVerticalStrut(20));
+
+        // --- BOTÕES PRINCIPAIS ---
+        JButton btnConvert = new RoundedButton("Converter Agora", COLOR_BTN_PRIMARY, Color.BLACK);
+        mainPanel.add(btnConvert);
+        mainPanel.add(Box.createVerticalStrut(10));
+
+        JButton btnInvert = new RoundedButton("🔁 Inverter Moedas", COLOR_BTN_SECONDARY, Color.WHITE);
+        btnInvert.addActionListener(e -> inverterMoedas());
+        mainPanel.add(btnInvert);
+        mainPanel.add(Box.createVerticalStrut(20));
+
+        // --- CARTÃO 3: RESULTADO ---
+        RoundedPanel cardResult = new RoundedPanel();
+        cardResult.setLayout(new BoxLayout(cardResult, BoxLayout.Y_AXIS));
+        
+        JLabel lblRecebera = new JLabel("Você receberá:");
+        lblRecebera.setFont(new Font("Segoe UI", Font.PLAIN, 14));
+        lblRecebera.setForeground(Color.DARK_GRAY);
+        lblRecebera.setAlignmentX(Component.CENTER_ALIGNMENT);
+        
+        lblResult = new JLabel("0.00", SwingConstants.CENTER);
+        lblResult.setFont(new Font("Segoe UI", Font.BOLD, 42));
+        lblResult.setForeground(new Color(20, 20, 20));
+        lblResult.setAlignmentX(Component.CENTER_ALIGNMENT);
+
+        lblResultSub = new JLabel("-");
+        lblResultSub.setFont(new Font("Segoe UI", Font.PLAIN, 16));
+        lblResultSub.setForeground(Color.DARK_GRAY);
+        lblResultSub.setAlignmentX(Component.CENTER_ALIGNMENT);
+        
+        cardResult.add(Box.createVerticalStrut(10));
+        cardResult.add(lblRecebera);
+        cardResult.add(Box.createVerticalStrut(10));
+        cardResult.add(lblResult);
+        cardResult.add(lblResultSub);
+        cardResult.add(Box.createVerticalStrut(10));
+        
+        mainPanel.add(cardResult);
+
+        // --- LÓGICA DO BOTÃO CONVERTER ---
+        btnConvert.addActionListener(e -> {
+            int indexFrom = cmbFrom.getSelectedIndex();
+            int indexTo = cmbTo.getSelectedIndex();
+
+            String input = txtValue.getText().replace(",", ".");
+            
+            // Verifica se o utilizador não escreveu nada e deixou o placeholder lá
+            if (input.equals(PLACEHOLDER_TEXT) || input.isEmpty()) {
+                JOptionPane.showMessageDialog(this, "Insere um número válido, senão vai dar merda!", "Erro", JOptionPane.ERROR_MESSAGE);
+                return;
+            }
+
+            final double val;
+            try {
+                val = Double.parseDouble(input);
+            } catch (NumberFormatException ex) {
+                JOptionPane.showMessageDialog(this, "Apenas números, por favor. Senão vai dar merda!", "Erro", JOptionPane.ERROR_MESSAGE);
+                return;
+            }
+
+            if (indexFrom == indexTo) {
+                lblResult.setText(String.format("%.2f %s", val, moedaAbrev[indexTo]));
+                lblResultSub.setText(moedaDisplay[indexTo]);
+                return;
+            }
+
+            lblResult.setText("A calcular...");
+
+            new Thread(() -> {
+                try {
+                    String m1 = moedaAbrev[indexFrom];
+                    String m2 = moedaAbrev[indexTo];
+                    double rate = obterTaxaDeCambio(m1, m2);
+                    double finalValue = val * rate;
+
+                    SwingUtilities.invokeLater(() -> {
+                        lblResult.setText(String.format("%.2f %s", finalValue, m2));
+                        lblResultSub.setText(moedaDisplay[indexTo]);
+                    });
+
+                } catch (Exception ex) {
+                    SwingUtilities.invokeLater(() -> {
+                        lblResult.setText("Erro");
+                        JOptionPane.showMessageDialog(this, "Erro de rede: " + ex.getMessage(), "Erro", JOptionPane.ERROR_MESSAGE);
+                    });
+                }
+            }).start();
+        });
+
+        // Foca o ecrã para o placeholder funcionar logo na primeira vez
+        getContentPane().requestFocusInWindow();
+    }
+
+    private void inverterMoedas() {
+        int indexFrom = cmbFrom.getSelectedIndex();
+        int indexTo = cmbTo.getSelectedIndex();
+        cmbFrom.setSelectedIndex(indexTo);
+        cmbTo.setSelectedIndex(indexFrom);
+    }
+
+    private static double obterTaxaDeCambio(String m1, String m2) throws Exception {
+        String urlStr = "https://economia.awesomeapi.com.br/json/last/" + m1 + "-" + m2;
+        URL url = new URL(urlStr);
+        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+        conn.setRequestMethod("GET");
+        conn.setConnectTimeout(5000);
+        conn.setReadTimeout(5000);
+
+        if (conn.getResponseCode() != 200) throw new IOException("HTTP Error: " + conn.getResponseCode());
+
+        BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
+        StringBuilder response = new StringBuilder();
+        String line;
+        while ((line = reader.readLine()) != null) response.append(line);
+        reader.close();
+
+        Pattern pattern = Pattern.compile("\"bid\"\\s*:\\s*\"([^\"]+)\"");
+        Matcher matcher = pattern.matcher(response.toString());
+        if (matcher.find()) return Double.parseDouble(matcher.group(1));
+        else throw new Exception("Chave 'bid' não encontrada.");
+    }
+
+    // --- CLASSES DE ESTILO CUSTOMIZADAS ---
+
+    // Painel Arredondado
+    class RoundedPanel extends JPanel {
+        public RoundedPanel() {
+            setOpaque(false);
+            setBorder(new EmptyBorder(15, 20, 15, 20));
+            setMaximumSize(new Dimension(360, 200));
+        }
+        @Override
+        protected void paintComponent(Graphics g) {
+            Graphics2D g2 = (Graphics2D) g.create();
+            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+            g2.setColor(new Color(0, 0, 0, 20));
+            g2.fillRoundRect(2, 2, getWidth() - 4, getHeight() - 4, 25, 25);
+            g2.setColor(COLOR_CARD);
+            g2.fillRoundRect(0, 0, getWidth() - 4, getHeight() - 4, 25, 25);
+            g2.dispose();
+            super.paintComponent(g);
+        }
+    }
+
+    // Botão Arredondado
+    class RoundedButton extends JButton {
+        private Color bgColor;
+        public RoundedButton(String text, Color bg, Color fg) {
+            super(text);
+            this.bgColor = bg;
+            setForeground(fg);
+            setFont(new Font("Segoe UI", Font.BOLD, 18));
+            setFocusPainted(false);
+            setContentAreaFilled(false);
+            setBorderPainted(false);
+            setAlignmentX(Component.CENTER_ALIGNMENT);
+            setMaximumSize(new Dimension(360, 50));
+            setCursor(new Cursor(Cursor.HAND_CURSOR));
+
+            addMouseListener(new MouseAdapter() {
+                public void mouseEntered(MouseEvent e) { bgColor = bg.brighter(); repaint(); }
+                public void mouseExited(MouseEvent e) { bgColor = bg; repaint(); }
+            });
+        }
+        @Override
+        protected void paintComponent(Graphics g) {
+            Graphics2D g2 = (Graphics2D) g.create();
+            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+            g2.setColor(new Color(0, 0, 0, 30));
+            g2.fillRoundRect(2, 4, getWidth() - 4, getHeight() - 4, 20, 20);
+            g2.setColor(bgColor);
+            g2.fillRoundRect(0, 0, getWidth() - 4, getHeight() - 5, 20, 20);
+            g2.dispose();
+            super.paintComponent(g);
+        }
+    }
+
+    private void styleComboBox(JComboBox<String> cb) {
+        cb.setMaximumSize(new Dimension(320, 40));
+        cb.setFont(new Font("Segoe UI", Font.PLAIN, 16));
+        cb.setBackground(Color.WHITE);
+        cb.setFocusable(false);
+        cb.setAlignmentX(Component.CENTER_ALIGNMENT);
+    }
+
+    private void styleTextField(JTextField tf) {
+        tf.setMaximumSize(new Dimension(320, 45));
+        tf.setFont(new Font("Segoe UI", Font.PLAIN, 18));
+        tf.setBorder(BorderFactory.createCompoundBorder(
+            BorderFactory.createLineBorder(Color.LIGHT_GRAY, 1, true),
+            new EmptyBorder(5, 10, 5, 10)
+        ));
+        tf.setAlignmentX(Component.CENTER_ALIGNMENT);
+    }
+
+    public static void main(String[] args) {
+        SwingUtilities.invokeLater(() -> {
+            new Main().setVisible(true);
+        });
+    }
+}