我正在開發用於測試(用於研究目的)的Java應用程序。花了一半的時間,直到連接到Firebird數據庫。 現在我在構建GUI時遇到了問題。這裏是我的代碼:使用ArrayList構建GUI <JPanel>
import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.util.*;
public class ExamSettingsWindow extends JFrame {
JDialog examSettingsWindow = new JDialog(MainWindow.mainWindow, "Редагування екзамену", true);
JPanel mainPanel = new JPanel();
ArrayList<Question> questionsList = new ArrayList<Question>(Question.getQuestions());
ArrayList<JPanel> qaPanels = new ArrayList<JPanel>();
ExamSettingsWindow() {
for(Question q : questionsList)
{ // Some weird shit happenning in this loop, can't explain this, but i'm sure it will work someday...
JLabel qID = new JLabel(String.valueOf(q.getID()));
qID.setBorder(new EmptyBorder(2,2,2,2));
JLabel qText = new JLabel(q.getText());
qText.setBorder(new EmptyBorder(2,2,2,2));
JPanel qPanel = new JPanel();
qPanel.setLayout(new BoxLayout(qPanel, BoxLayout.X_AXIS));
qPanel.setBorder(new EmptyBorder(5,5,5,5));
qPanel.setMinimumSize(new Dimension(500,30));
qPanel.add(qID);
qPanel.add(qText);
JPanel aPanels = new JPanel();
aPanels.setLayout(new BoxLayout(aPanels, BoxLayout.Y_AXIS));
aPanels.setBorder(new EmptyBorder(5,5,5,5));
aPanels.setMinimumSize(new Dimension(500,30));
for (Question.Answer a : q.answersList) {
JLabel aID = new JLabel(a.getID());
aID.setBorder(new EmptyBorder(2,2,2,2));
JLabel aText = new JLabel(a.getText());
aText.setBorder(new EmptyBorder(2,2,2,2));
JPanel aPanel = new JPanel();
aPanel.setMinimumSize(new Dimension(500,30));
aPanel.setLayout(new BoxLayout(aPanel, BoxLayout.X_AXIS));
aPanel.add(aID);
aPanel.add(aText);
aPanels.add(aPanel);
}
JPanel qaPanel = new JPanel();
qaPanel.setMinimumSize(new Dimension(500,200));
qaPanel.setLayout(new BoxLayout(qaPanel, BoxLayout.Y_AXIS));
qaPanel.setBorder(new TitledBorder(new LineBorder(Color.black, 2),
"Питання "+String.valueOf(q.getID())));
qaPanels.add(qaPanel);
}
examSettingsWindow.setMinimumSize(new Dimension(500, 500));
examSettingsWindow.setMaximumSize(new Dimension(500, 500));
examSettingsWindow.setResizable(false);
examSettingsWindow.setDefaultCloseOperation(HIDE_ON_CLOSE);
examSettingsWindow.setLocationRelativeTo(null);
mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
mainPanel.setMinimumSize(new Dimension(500,500));
for (JPanel p : qaPanels) {
mainPanel.add(p);
}
JScrollPane sc = new JScrollPane(mainPanel);
sc.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED);
examSettingsWindow.add(mainPanel);
}
public void initExamSettingsFrame(boolean vision) {
examSettingsWindow.setVisible(vision);
}
}
這裏是運行個節目後顯示哪些圖片: >>click<<
我想問題可能是ArrayList中包含的JPanel具有相同的名字,但我不知道當我尋找原因和解決方案時,我的頭腦正在炸燬。 請幫助...給我正確的方向...
P.S.我的代碼不完美,不要責怪我。我只是想學習Java。
1)爲了更好地幫助越早,張貼[MCVE]或[簡要,獨立的,正確的示例](http://www.sscce.org/)。 (該代碼至少需要一個'main(String [])'方法才能成爲一個MCVE/SSCCE。)2)以最小尺寸提供ASCII藝術或簡單的GUI佈局圖,如果可調整大小,更寬和更高。 3)請參閱[我是否應避免使用Java Swing中的set(Preferred | Maximum | Minimum)Size方法?](http://stackoverflow.com/q/7229226/418556)(是) –
謝謝,我將遵循你將來的推薦。 –