Beispiel #1
0
 /*
  * Creates the JTextArea for the GUI with the ScrollPane.
  */
 private JScrollPane responseArea() {
   responseArea = new JTextArea();
   responseArea.setSize(10, 10);
   responseArea.setLineWrap(true);
   responseArea.setWrapStyleWord(true);
   scrollPane =
       new JScrollPane(
           responseArea,
           ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS,
           ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
   return scrollPane;
 }
  /** Initialisation */
  private void initComponents() {
    setBackground(new java.awt.Color(114, 159, 255));
    addWindowListener(
        new java.awt.event.WindowAdapter() {
          public void windowClosing(java.awt.event.WindowEvent evt) {
            closeDialog();
          }
        });
    getContentPane().setLayout(new java.awt.BorderLayout());

    JPanel actionPanel = new JPanel();
    actionPanel.setLayout(new java.awt.GridLayout(1, 0));
    detailedArea.setEditable(false);
    detailedArea.setVisible(true);
    detailedArea.setSize(500, 300);
    detailedArea.setFont(new java.awt.Font("Arial", java.awt.Font.PLAIN, 11));
    StringWriter opDetail = new StringWriter();
    actionPrint(new PrintWriter(opDetail));
    detailedArea.setText(new String(opDetail.getBuffer()));
    JScrollPane scroll = new JScrollPane(detailedArea);
    actionPanel.add(scroll);
    getContentPane().add(actionPanel, "Center");

    northToolBar = new javax.swing.JToolBar();
    northToolBar.setLayout(new java.awt.FlowLayout());
    northToolBar.setFloatable(false);

    jbn_Print = new javax.swing.JButton();
    jbn_Print.setText("   Print   ");
    jbn_Print.addActionListener(
        new java.awt.event.ActionListener() {
          public void actionPerformed(java.awt.event.ActionEvent evt) {
            jbn_PrintActionPerformed();
          }
        });
    northToolBar.add(jbn_Print);

    jbn_OK = new javax.swing.JButton();
    jbn_OK.setText("   Close   ");
    jbn_OK.addActionListener(
        new java.awt.event.ActionListener() {
          public void actionPerformed(java.awt.event.ActionEvent evt) {
            jbn_OKActionPerformed();
          }
        });
    northToolBar.add(jbn_OK);

    getContentPane().add(northToolBar, "South");
  }
Beispiel #3
0
  /** ** Constructor. Sets up user interface and initializations */
  public Secondtry() {
    operators = true;
    doClear = false;

    frame = new JFrame("Calculator");
    frame.setLayout(new BorderLayout(10, 10));

    display = new JTextArea();
    display.setSize(245, 100);
    display.setFont(new Font("SansSerif", Font.BOLD, 28));
    display.setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT);

    // create the numeric buttons for calculator
    for (int i = 0; i < 10; i++) {
      jb[i] = new JButton("" + (i));
      jb[i].addActionListener(this);
      jb[i].setFont(new Font("SansSerif", Font.BOLD, 14));
    }
    // create the square root button
    root = new JButton("\u221A");
    root.addActionListener(this);
    root.setFont(new Font("SansSerif", Font.BOLD, 14));

    // create the clear button
    clear = new JButton("C");
    clear.addActionListener(this);
    clear.setFont(new Font("SansSerif", Font.BOLD, 14));

    // create the plus button
    plus = new JButton("\u002B");
    plus.addActionListener(this);
    plus.setFont(new Font("SansSerif", Font.BOLD, 14));

    // create the minus button
    minus = new JButton("\u002D");
    minus.addActionListener(this);
    minus.setFont(new Font("SansSerif", Font.BOLD, 14));

    // create the multiply button
    mult = new JButton("\u002A");
    mult.addActionListener(this);
    mult.setFont(new Font("SansSerif", Font.BOLD, 14));

    // create the division button
    div = new JButton("\u002F");
    div.addActionListener(this);
    div.setFont(new Font("SansSerif", Font.BOLD, 14));

    // create the equals button
    equals = new JButton("\u003D");
    equals.addActionListener(this);
    equals.setFont(new Font("SansSerif", Font.BOLD, 14));

    equals.setPreferredSize(new Dimension(50, 60));

    // create the point button
    point = new JButton("\u002E");
    point.addActionListener(this);
    point.setFont(new Font("SansSerif", Font.BOLD, 14));

    // button grid
    JPanel buttons = new JPanel(new GridLayout(5, 4, 4, 4));

    // add buttons to grid
    buttons.add(clear);
    buttons.add(root);
    buttons.add(div);
    buttons.add(mult);
    // add numeric buttons to grid
    for (int i = 7; i < 10; i++) buttons.add(jb[i]);
    buttons.add(minus);
    // add numeric buttons to grid
    for (int i = 4; i < 7; i++) buttons.add(jb[i]);
    buttons.add(plus);
    // add numeric buttons to grid
    for (int i = 1; i < 4; i++) buttons.add(jb[i]);
    buttons.add(equals);
    buttons.add(jb[0]);
    buttons.add(point);

    frame.add(display, BorderLayout.CENTER);
    frame.add(buttons, BorderLayout.SOUTH);

    frame.setSize(300, 400);
    frame.setVisible(true);
    frame.setResizable(false);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }