コードの一部に問題があります。私はこれに長い間取り組んできましたが、疲れ果てて何か簡単なことを見逃しています. JFrame の新しいタイトルを入力するためのテキスト ボックス、「新しい名前を設定」というボタン、および「終了ボタン」が必要です。誰かこのコードを見て、就寝できるように情報を教えてください。ありがとうあなた
//Good One
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.text.*;
import java.util.*;
import javax.swing.*;
public class Pool {
public static void main(String[] args) {
new poolCalc();
}
}
class poolCalc extends JFrame {
private static final long serialVersionUID = 1L;
public static final double MILLIMETER = 1;
public static final double METER = 1000 * MILLIMETER;
public static final double INCH = 25.4 * MILLIMETER;
public static final double FOOT = 304.8 * MILLIMETER;
public static final double YARD = 914.4 * MILLIMETER;
private static final DecimalFormat df = new DecimalFormat("#,##0.###");
private JTabbedPane tabs;
private JPanel generalPanel;
private JPanel optionsPanel;
private JPanel customerPanel;
private JPanel contractorPanel;
private JPanel poolPanel;
private JPanel hotTubPanel;
private JPanel tempCalPanel;
private JPanel lengthCalPanel;
public poolCalc() {
super("The Pool Calculator");
setSize(340, 300);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setResizable(true);
initializeComponents();
setLocationRelativeTo(null);
setVisible(true);
}
private void initializeComponents() {
Container pane = getContentPane();
tabs = new JTabbedPane();
generalTab();
optionsTab();
customerTab();
contractorTab();
poolsTab();
hotTubsTab();
tempCalTab();
lengthCalTab();
tabs.add("General", generalPanel);
tabs.add("Options", optionsPanel);
tabs.add("Customers", customerPanel);
tabs.add("Contractors", contractorPanel);
tabs.add("Pools", poolPanel);
tabs.add("Hot Tubs", hotTubPanel);
tabs.add("Temp Calc", tempCalPanel);
tabs.add("Length Calc", lengthCalPanel);
pane.add(tabs);
}
private JButton createExitButton() {
JButton exitButton = new JButton("Exit");
exitButton.setMnemonic('x');
exitButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
return exitButton;
}
private void generalTab() {
generalPanel = new JPanel(new FlowLayout());
String currentTime = SimpleDateFormat.getInstance().format(
Calendar.getInstance().getTime());
generalPanel.add(new JLabel("Today's Date: " + currentTime));
generalPanel.add(createExitButton());
}
private JTextField createTitleField(String text, int length) {
JTextField tf = new JTextField(length);
tf.setEditable(false);
tf.setFocusable(false);
tf.setText(text);
return tf;
}
// FIX
private void optionsTab() {
optionsPanel = new JPanel(new FlowLayout());
//optionsPanel.setLayout(null);
JLabel labelOptions = new JLabel("Change Company Name:");
labelOptions.setBounds(120, 10, 150, 20);
optionsPanel.add(labelOptions);
final JTextField newTitle = new JTextField("Some Title");
newTitle.setBounds(80, 40, 225, 20);
optionsPanel.add(newTitle);
final JTextField myTitle = new JTextField("My Title...");
myTitle.setBounds(80, 40, 225, 20);
myTitle.add(labelOptions);
JButton newName = new JButton("Set New Name");
newName.setBounds(60, 80, 150, 20);
//newName.addActionListener(this);
optionsPanel.add(newName);
optionsPanel.add(createExitButton());
}
private void customerTab() {
customerPanel = createContactPanel("Customer", "customer.txt");
}
private void contractorTab() {
contractorPanel = createContactPanel("Contractor", "contractor.txt");
}
private void poolsTab() {
poolPanel = new JPanel(new FlowLayout());
final JRadioButton roundPool = new JRadioButton("Round Pool");
final JRadioButton ovalPool = new JRadioButton("Oval Pool");
final JRadioButton rectangularPool = new JRadioButton("Rectangle Pool");
roundPool.setSelected(true);
ButtonGroup group = new ButtonGroup();
group.add(roundPool);
group.add(rectangularPool);
poolPanel.add(roundPool);
poolPanel.add(rectangularPool);
poolPanel.add(new JLabel("Enter the pool's length (ft): "));
final JTextField lengthField = new JTextField(10);
poolPanel.add(lengthField);
final JLabel widthLabel = new JLabel("Enter the pool's width (ft): ");
widthLabel.setEnabled(false);
poolPanel.add(widthLabel);
final JTextField widthField = new JTextField(10);
widthField.setEnabled(false);
poolPanel.add(widthField);
poolPanel.add(new JLabel("Enter the pool's depth (ft): "));
final JTextField depthField = new JTextField(10);
poolPanel.add(depthField);
JButton calculateVolume = new JButton("Calculate Volume");
calculateVolume.setMnemonic('C');
poolPanel.add(calculateVolume);
poolPanel.add(createExitButton());
poolPanel.add(new JLabel("The pool's volume is (ft^3): "));
final JTextField volumeField = new JTextField(10);
volumeField.setEditable(false);
poolPanel.add(volumeField);
final JTextArea messageArea = createMessageArea(2, 20, "");
poolPanel.add(messageArea);
calculateVolume.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (roundPool.isSelected()) {
widthField.setText(lengthField.getText());
}
ValidationResult result = validateFields(new JTextField[] {
lengthField, widthField, depthField });
String errors = "";
if (result.filled != 3) {
errors += "Please fill out all fields! ";
}
if (result.valid != 3 && result.filled != result.valid) {
errors += "Please enter valid numbers!";
}
if (errors != "") {
messageArea.setText(errors);
messageArea.setVisible(true);
}
else {
messageArea.setVisible(false);
double length = Double.parseDouble(lengthField.getText());
double width = Double.parseDouble(widthField.getText());
double depth = Double.parseDouble(depthField.getText());
double volume;
if (roundPool.isSelected()) {
volume = Math.PI * Math.pow(length / 2.0, 2) * depth;
}
if (rectangularPool.isSelected()) {
volume = length * width * depth * 5.9;
}
else {
volume = length * width * depth * 7.5;
}
volumeField.setText(df.format(volume));
}
}
});
ActionListener poolsListener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (e.getSource() == roundPool) {
widthLabel.setEnabled(false);
widthField.setEnabled(false);
widthField.setText(lengthField.getText());
}
else if (e.getSource() == rectangularPool) {
widthLabel.setEnabled(true);
widthField.setEnabled(true);
messageArea.setVisible(false);
}
}
};
roundPool.addActionListener(poolsListener);
ovalPool.addActionListener(poolsListener);
rectangularPool.addActionListener(poolsListener);
}
private void hotTubsTab() {
hotTubPanel = new JPanel(new FlowLayout());
final JRadioButton roundTub = new JRadioButton("Round Tub");
final JRadioButton ovalTub = new JRadioButton("Oval Tub");
roundTub.setSelected(true);
ButtonGroup group = new ButtonGroup();
group.add(roundTub);
group.add(ovalTub);
hotTubPanel.add(roundTub);
hotTubPanel.add(ovalTub);
hotTubPanel.add(new JLabel("Enter the tub's length (ft): "));
final JTextField lengthField = new JTextField(10);
hotTubPanel.add(lengthField);
final JLabel widthLabel = new JLabel("Enter the tub's width (ft): ");
widthLabel.setEnabled(false);
hotTubPanel.add(widthLabel);
final JTextField widthField = new JTextField(10);
widthField.setEnabled(false);
hotTubPanel.add(widthField);
hotTubPanel.add(new JLabel("Enter the tub's depth (ft): "));
final JTextField depthField = new JTextField(10);
hotTubPanel.add(depthField);
JButton calculateVolume = new JButton("Calculate Volume");
calculateVolume.setMnemonic('C');
hotTubPanel.add(calculateVolume);
hotTubPanel.add(createExitButton());
hotTubPanel.add(new JLabel("The tub's volume is (ft^3): "));
final JTextField volumeField = new JTextField(10);
volumeField.setEditable(false);
hotTubPanel.add(volumeField);
final JTextArea messageArea = createMessageArea(1, 25,
"Width will be set to the same value as length");
hotTubPanel.add(messageArea);
calculateVolume.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (roundTub.isSelected()) {
widthField.setText(lengthField.getText());
}
ValidationResult result = validateFields(new JTextField[] {
lengthField, widthField, depthField });
String errors = "";
if (result.filled != 3) {
errors += "Please fill out all fields! ";
}
if (result.valid != 3 && result.filled != result.valid) {
errors += "Please enter valid numbers!";
}
if (errors != "") {
messageArea.setText(errors);
messageArea.setVisible(true);
}
else {
messageArea.setVisible(false);
double length = Double.parseDouble(lengthField.getText());
double width = Double.parseDouble(widthField.getText());
double depth = Double.parseDouble(depthField.getText());
double volume;
if (roundTub.isSelected()) {
volume = Math.PI * Math.pow(length / 2.0,2) * depth;
}
if (ovalTub.isSelected()) {
volume = Math.PI * ((length * width)*2) * depth;
}
else {
volume = length * width * depth * 7.5;
}
volumeField.setText(df.format(volume));
}
}
});
ActionListener tubsListener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (e.getSource() == roundTub) {
widthLabel.setEnabled(false);
widthField.setEnabled(false);
widthField.setText(lengthField.getText());
}
else if (e.getSource() == ovalTub) {
widthLabel.setEnabled(true);
widthField.setEnabled(true);
messageArea.setVisible(false);}
}
};
roundTub.addActionListener(tubsListener);
ovalTub.addActionListener(tubsListener);}
private void tempCalTab() {
tempCalPanel = new JPanel(new FlowLayout());
tempCalPanel.add(new JLabel("Enter temperature: "));
final JTextField temperatureField = new JTextField(10);
tempCalPanel.add(temperatureField);
final JComboBox optionComboBox = new JComboBox(
new String[] { "C", "F" });
tempCalPanel.add(optionComboBox);
tempCalPanel.add(new JLabel("Result: "));
final JTextField resultField = new JTextField(18);
resultField.setEditable(false);
tempCalPanel.add(resultField);
final JLabel oppositeLabel = new JLabel("F");
tempCalPanel.add(oppositeLabel);
JButton convertButton = new JButton("Convert");
convertButton.setMnemonic('C');
tempCalPanel.add(convertButton);
tempCalPanel.add(createExitButton());
final JTextArea messageArea = createMessageArea(1, 20,
"System Messages");
tempCalPanel.add(messageArea);
optionComboBox.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
if (e.getStateChange() == ItemEvent.SELECTED) {
if ("F".equals(e.getItem())) {
oppositeLabel.setText("C");}
else {
oppositeLabel.setText("F");}}}
});
convertButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
ValidationResult result = validateFields(new JTextField[] { temperatureField });
String errors = "";
if (result.filled != 1 || result.valid != 1) {
errors += "Value set to zero";}
if (errors != "") {
messageArea.setText(errors);
messageArea.setVisible(true);
temperatureField.setText("0");}
else {
messageArea.setVisible(false);}
double temperature = Double.parseDouble(temperatureField
.getText());
double resultValue = 0;
if (oppositeLabel.getText().equals("C")) {
resultValue = (temperature - 32.0) / 9.0 * 5.0;}
else if (oppositeLabel.getText().equals("F")) {
resultValue = ((temperature * 9.0) / 5.0) + 32.0;}
resultField.setText(df.format(resultValue));}
});
}
private void lengthCalTab() {
lengthCalPanel = new JPanel(new FlowLayout());
lengthCalPanel.add(createTitleField("Millimeters", 6));
lengthCalPanel.add(createTitleField("Meters", 4));
lengthCalPanel.add(createTitleField("Yards", 4));
lengthCalPanel.add(createTitleField("Feet", 3));
lengthCalPanel.add(createTitleField("Inches", 6));
final JTextField millimetersField = new JTextField(6);
final JTextField metersField = new JTextField(4);
final JTextField yardsField = new JTextField(4);
final JTextField feetField = new JTextField(3);
final JTextField inchesField = new JTextField(6);
lengthCalPanel.add(millimetersField);
lengthCalPanel.add(metersField);
lengthCalPanel.add(yardsField);
lengthCalPanel.add(feetField);
lengthCalPanel.add(inchesField);
JButton convertButton = new JButton("Convert");
convertButton.setMnemonic('C');
convertButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
double millimeters = convertToDouble(millimetersField.getText());
double meters = convertToDouble(metersField.getText());
double yards = convertToDouble(yardsField.getText());
double feet = convertToDouble(feetField.getText());
double inches = convertToDouble(inchesField.getText());
double value = 0;
if (millimeters != 0) {
value = millimeters * MILLIMETER;}
else if (meters != 0) {
value = meters * METER;}
else if (yards != 0) {
value = yards * YARD;}
else if (feet != 0) {
value = feet * FOOT;}
else if (inches != 0) {
value = inches * INCH;}
millimeters = value / MILLIMETER;
meters = value / METER;
yards = value / YARD;
feet = value / FOOT;
inches = value / INCH;
millimetersField.setText(df.format(millimeters));
metersField.setText(df.format(meters));
yardsField.setText(df.format(yards));
feetField.setText(df.format(feet));
inchesField.setText(df.format(inches));}
private double convertToDouble(String s) {
try {
return Double.parseDouble(s);}
catch (Exception e) {
return 0;}}
});
JButton clearButton = new JButton("Clear");
clearButton.setMnemonic('l');
clearButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
millimetersField.setText(null);
metersField.setText(null);
yardsField.setText(null);
feetField.setText(null);
inchesField.setText(null);}
});
lengthCalPanel.add(convertButton);
lengthCalPanel.add(clearButton);
lengthCalPanel.add(createExitButton());}
private String loadDataFromFile(String fileName) {
String data = "";
try {
BufferedReader reader = new BufferedReader(new FileReader(fileName));
while (reader.ready()) {
data += reader.readLine() + "\n";}
reader.close();}
catch (IOException e){
}
return data;}
private JPanel createContactPanel(final String contactName,
final String fileName) {
JPanel pane = new JPanel(new FlowLayout());
final JTextArea customerDisplay = new JTextArea(8, 25);
customerDisplay.setLineWrap(true);
customerDisplay.setEditable(false);
pane.add(new JScrollPane(customerDisplay));
pane.add(createExitButton());
JButton addCustomerButton = new JButton("Add " + contactName);
addCustomerButton.setMnemonic('A');
pane.add(addCustomerButton);
JButton refreshButton = new JButton("Refresh");
refreshButton.setMnemonic('R');
pane.add(refreshButton);
final JTextArea messageArea = createMessageArea(2, 25, "");
messageArea.setBackground(Color.white);
pane.add(messageArea);
addCustomerButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
new EditContact(contactName, fileName);}
});
refreshButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String data = loadDataFromFile(fileName);
if (data != "") {
customerDisplay.setText(data);
customerDisplay.setEnabled(true);
messageArea.setText("File " + fileName
+ " can be read from!");
}
else {
customerDisplay.setText("Click Add "
+ contactName
+ " button to add "
+ contactName.toLowerCase()
+ ". And click Refresh button to update this pane.");
customerDisplay.setEnabled(false);
messageArea.setText("File " + fileName + " is not "
+ "there yet! It will be created "
+ "when you add " + contactName.toLowerCase()
+ "s!");
}
}
});
refreshButton.doClick();
return pane;
}
private JTextArea createMessageArea(int rows, int cols, String text) {
final JTextArea messageArea = new JTextArea(rows, cols);
messageArea.setBorder(BorderFactory.createEmptyBorder());
messageArea.setLineWrap(true);
messageArea.setWrapStyleWord(true);
messageArea.setFont(new Font("System", Font.PLAIN, 12));
messageArea.setText(text);
messageArea.setBackground(null);
messageArea.setForeground(Color.GRAY);
messageArea.setEnabled(true);
messageArea.setFocusable(false);
return messageArea;
}
private class ValidationResult {
int filled;
int valid;
}
private ValidationResult validateFields(JTextField[] fields) {
ValidationResult result = new ValidationResult();
for (int i = 0; i < fields.length; i++) {
JTextField field = fields[i];
if ((field.getText() != null) && (field.getText().length() > 0)) {
result.filled++;
}
try {
Double.parseDouble(field.getText());
field.setBackground(Color.white);
result.valid++;
}
catch (Exception e) {
field.setBackground(Color.orange);
}
}
return result;
}
private class EditContact extends JDialog {
private static final long serialVersionUID = 1L;
private final String contactName;
private final String fileName;
private File file;
private JTextField nameField;
private JTextField addressField;
private JTextField cityField;
private JComboBox stateComboBox;
private JTextField zipField;
private JTextField phoneField;
private JTextArea messageArea;
public EditContact(String contactName, String fileName) {
super(poolCalc.this, contactName + "s");
setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
setModalityType(ModalityType.APPLICATION_MODAL);
setSize(418, 300);
this.contactName = contactName;
this.fileName = fileName;
initializeComponents();
if (openFile()) {
displayMessage(null);
}
else {
displayMessage("File " + fileName + " does not exist yet! "
+ "Will be created when you add a "
+ contactName.toLowerCase() + "!");
}
setLocationRelativeTo(null);
setVisible(true);
}
private void displayMessage(String message) {
if (message != null) {
messageArea.setVisible(true);
messageArea.setText(message);
}
else {
messageArea.setVisible(false);
}
}
private boolean openFile() {
file = new File(fileName);
return file.exists();
}
private boolean deleteFile() {
return file.exists() && file.delete();
}
private boolean saveToFile() {
try {
BufferedWriter writer = new BufferedWriter(new FileWriter(file,
true));
writer.write("Name: " + nameField.getText() + "\n");
writer.write("Address: " + addressField.getText() + "\n");
writer.write("City: " + cityField.getText() + "\n");
writer.write("State: "
+ stateComboBox.getSelectedItem().toString() + "\n");
writer.write("ZIP: " + zipField.getText() + "\n");
writer.write("Phone: " + phoneField.getText() + "\n");
writer.write("\n");
writer.close();
return true;
}
catch (IOException e) {
return false;
}
}
private void initializeComponents() {
Container pane = getContentPane();
pane.setLayout(new FlowLayout());
pane.add(new JLabel(contactName + " Name "));
nameField = new JTextField(25);
pane.add(nameField);
pane.add(new JLabel("Address "));
addressField = new JTextField(28);
pane.add(addressField);
pane.add(new JLabel("City "));
cityField = new JTextField(32);
pane.add(cityField);
pane.add(new JLabel("State "));
stateComboBox = new JComboBox(new String[] { "AL", "AK", "AZ",
"AR", "CA", "CO", "CT", "DE", "FL", "GA", "HI", "ID", "IL",
"IN", "IA", "KS", "KY", "LA", "ME", "MD", "MA", "MI", "MN",
"MS", "MO", "MT", "NE", "NV", "NH", "NJ", "NM", "NY", "NC",
"ND", "OH", "OK", "OR", "PA", "RI", "SC", "SD", "TN", "TX",
"UT", "VT", "VA", "WA", "WV", "WI", "WY" });
pane.add(stateComboBox);
pane.add(new JLabel("ZIP "));
zipField = new JTextField(5);
pane.add(zipField);
pane.add(new JLabel("Phone "));
phoneField = new JTextField(10);
pane.add(phoneField);
JButton addContactButton = new JButton("Add " + this.contactName);
addContactButton.setMnemonic('A');
addContactButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (saveToFile()) {
displayMessage(contactName + " added");
}
else {
displayMessage("File saving error!");
}
}
});
pane.add(addContactButton);
JButton closeButton = new JButton("Close");
closeButton.setMnemonic('C');
closeButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
setVisible(false);
}
});
pane.add(closeButton);
JButton deleteFileButton = new JButton("Delete File");
deleteFileButton.setMnemonic('D');
deleteFileButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (deleteFile()) {
displayMessage("File " + fileName + " deleted!");
}
}
});
pane.add(deleteFileButton);
messageArea = createMessageArea(2, 30, "");
messageArea.setBackground(Color.white);
pane.add(messageArea);
}
}
}