私は今、SSCEEのガイドラインに従って問題を再現しました。
次の 3 つのクラス (クラス コード) をコピー、貼り付け、コンパイルする準備ができているはずです。
Menu(): (これは私のメインクラスです)
public class Menu extends javax.swing.JFrame {
/**
* Creates new form Menu
*/
public Menu() {
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() {
cmdMainWindow = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
cmdMainWindow.setText("Main Window");
cmdMainWindow.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
cmdMainWindowActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(cmdMainWindow, javax.swing.GroupLayout.DEFAULT_SIZE, 116, Short.MAX_VALUE)
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(cmdMainWindow)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void cmdMainWindowActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
MainWindow main = new MainWindow();
main.setVisible(true);
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/*
* Set the Nimbus look and feel
*/
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/*
* If Nimbus (introduced in Java SE 6) is not available, stay with the
* default look and feel. For details see
* 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(Menu.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Menu.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Menu.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Menu.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 Menu().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton cmdMainWindow;
// End of variables declaration
}
MainWindow():
public class MainWindow extends javax.swing.JFrame {
private MainWindow main;
public String strOptionOne;
/**
* Creates new form MainWindow
*/
public MainWindow() {
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() {
lblOptionOne = new javax.swing.JLabel();
cmdOptions = new javax.swing.JButton();
txtOptionOne = new javax.swing.JTextField();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
lblOptionOne.setText("Option One");
cmdOptions.setText("Options");
cmdOptions.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
cmdOptionsActionPerformed(evt);
}
});
txtOptionOne.setEditable(false);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(lblOptionOne)
.addComponent(cmdOptions, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(txtOptionOne))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(lblOptionOne)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(txtOptionOne, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(11, 11, 11)
.addComponent(cmdOptions)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void cmdOptionsActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
ConfigWindow config = new ConfigWindow(main);
config.setVisible(true);
}
public String setOptionOne() {
ConfigWindow config = new ConfigWindow(main);
strOptionOne = config.getOptionOne();
return strOptionOne;
}
/**
* @param args the command line arguments
*/
// Variables declaration - do not modify
private javax.swing.JButton cmdOptions;
private javax.swing.JLabel lblOptionOne;
public javax.swing.JTextField txtOptionOne;
// End of variables declaration
}
ConfigWindow():
public class ConfigWindow extends javax.swing.JFrame {
private MainWindow main;
public String btnTxtOptionOne;
/**
* Creates new form ConfigWindow
*/
public ConfigWindow(MainWindow main) {
initComponents();
this.main = main;
}
public String getOptionOne() {
if ("1".equals(grpOptionOne.getSelection())) {
btnTxtOptionOne = "1";
return this.btnTxtOptionOne;
}
if ("2".equals(grpOptionOne.getSelection())) {
btnTxtOptionOne = "2";
return this.btnTxtOptionOne;
}
return btnTxtOptionOne;
}
/**
* 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() {
grpOptionOne = new javax.swing.ButtonGroup();
lblOptionOne = new javax.swing.JLabel();
btn1 = new javax.swing.JRadioButton();
btn2 = new javax.swing.JRadioButton();
cmdApplySettings = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
lblOptionOne.setText("Option One");
grpOptionOne.add(btn1);
btn1.setText("1");
grpOptionOne.add(btn2);
btn2.setText("2");
cmdApplySettings.setText("ApplySettings");
cmdApplySettings.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
cmdApplySettingsActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(lblOptionOne)
.addGroup(layout.createSequentialGroup()
.addComponent(btn1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(btn2))
.addComponent(cmdApplySettings))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(lblOptionOne)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(btn1)
.addComponent(btn2))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(cmdApplySettings)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void cmdApplySettingsActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
main.txtOptionOne.setText(main.strOptionOne);
dispose();
}
/**
* @param args the command line arguments
*/
// Variables declaration - do not modify
private javax.swing.JRadioButton btn1;
private javax.swing.JRadioButton btn2;
private javax.swing.JButton cmdApplySettings;
private javax.swing.ButtonGroup grpOptionOne;
private javax.swing.JLabel lblOptionOne;
// End of variables declaration
}
すべてのコードを修正したので、問題が何であるかをもう一度説明します。
MainWindow から ConfigWindow に移動して Options を選択すると、オプションを選択した後、ConfigWindow のメソッドが選択したボタンの値を取得し、次に MainWindow のメソッドがこの値を取得して MainWindow 内の変数に設定します。次に、ConfigWindow で [適用] をクリックすると、MainWindow からのメソッドが実行され、選択されたオプションで MainWindow 変数が設定されますが、そうではありません!
私はプロジェクトを最も基本的な形にトリミングしましたが、今では適用をクリックするとネットビーンズでエラーがスローされますが、以前は何もしませんでしたが、ネットビーンズではエラーはありませんでした。
ここでなんとか SSCEE を達成できたことを願っています ... がんばります!!!