我正在尝试构建我的第一个应用程序，询问用户任何月份，并将导致通过JTextArea生成某些事件。
这是我第一次在netbeans中使用Swing，而且我是编码世界的新手。我想补充一点，我现在稍微偏离了我的深度，因为我不觉得我应该尝试做我想做的事情，但是想要为家庭成员复制以获得乐趣！
/ * *要更改此许可证标题，请在“项目属性”中选择“许可证标题”。 *要更改此模板文件，请选择“工具”|模板 *并在编辑器中打开模板。 * / 封装天文学;
/ ** * * @author Jamie * / 公共类AstronomyEvents扩展了javax.swing.JFrame {
/**
* Creates new form AstronomyEvents
*/
public AstronomyEvents() {
initComponents();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
userInput = new javax.swing.JTextField();
enterButton = new javax.swing.JButton();
clearButton = new javax.swing.JButton();
exitButton = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
resultField = new javax.swing.JTextArea();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Astronomy Events");
jPanel1.setBorder(javax.swing.BorderFactory.createTitledBorder("Enter A Month"));
jLabel1.setText("Month");
userInput.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
userInputActionPerformed(evt);
}
});
enterButton.setText("Look it up!");
enterButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
enterButtonActionPerformed(evt);
}
});
clearButton.setText("Clear");
clearButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
clearButtonActionPerformed(evt);
}
});
exitButton.setText("Exit");
exitButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
exitButtonActionPerformed(evt);
}
});
resultField.setColumns(20);
resultField.setRows(5);
jScrollPane1.setViewportView(resultField);
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
.addComponent(enterButton, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 190, Short.MAX_VALUE)
.addComponent(clearButton, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(exitButton, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGap(40, 40, 40)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 418, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(28, 28, 28))
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 75, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(userInput, javax.swing.GroupLayout.PREFERRED_SIZE, 154, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(userInput, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(enterButton, javax.swing.GroupLayout.PREFERRED_SIZE, 52, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(clearButton, javax.swing.GroupLayout.PREFERRED_SIZE, 51, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(exitButton, javax.swing.GroupLayout.PREFERRED_SIZE, 51, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(101, 101, 101))
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 238, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(47, 47, 47)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(69, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(50, 50, 50)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(83, Short.MAX_VALUE))
);
setSize(new java.awt.Dimension(834, 517));
setLocationRelativeTo(null);
}// </editor-fold>
private void userInputActionPerformed(java.awt.event.ActionEvent evt) {
}
private void clearButtonActionPerformed(java.awt.event.ActionEvent evt) {
userInput.setText("");
resultField.setText("");
}
private void exitButtonActionPerformed(java.awt.event.ActionEvent evt) {
System.exit(0);
}
private void enterButtonActionPerformed(java.awt.event.ActionEvent evt) {
if (userInput.equals ("January"))
{
resultField.setText("January 1st - Mercury at Greatest Western Elongation" + "\n" + "January 2nd - Full Moon, Supermoon" + "\n" + "January 3rd & 4th - Quadrantids Meteor Shower" + "\n" + "January 17th - New Moon" + "\n" + "January 31st - Full Moon, Supermoon, Blue Moon" + "\n" + "January 31st - Total Lunar Eclipse");
} else {
resultField.setText("None");
}
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/ *设置Nimbus的外观 / // / 如果Nimbus（在Java SE 6中引入）不可用，请保持默认外观。 *有关详细信息，请参阅http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html * /
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(AstronomyEvents.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(AstronomyEvents.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(AstronomyEvents.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(AstronomyEvents.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new AstronomyEvents().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton clearButton;
private javax.swing.JButton enterButton;
private javax.swing.JButton exitButton;
private javax.swing.JLabel jLabel1;
private javax.swing.JPanel jPanel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextArea resultField;
private javax.swing.JTextField userInput;
// End of variables declaration
private void euqals(String january) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
}
上面的代码是我在netbeans中构建的Swing应用程序的摘录，你可以看到我想要做的是说用户输入＆＃34; 1月＆＃34;在输入部分内，按回车键，显示上面的结果。
我很欣赏有一些方法可以让这些代码变得更好，更容易，但是现在我只是想让它工作，并且会考虑让以后更容易阅读。
结果是，无论我输入什么，结果显示，他们不应该这样做。