/*
* 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");
}
/** ** 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);
}