我修改了一些代码,然后看到了这段代码:
```
package formbuilder;
```
该代码属于表单构建器的一个包。
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.LineBorder;
public class CreateFormFields {
static JPanel panel = new JPanel();
static Integer indexer = 1;
static List<JLabel> listOfLabels = new ArrayList<JLabel>();
static List<JTextField> listOfTextFields = new ArrayList<JTextField>();
static List<JTextField> listDataType = new ArrayList<JTextField>();
static List<JTextField> listRange = new ArrayList<JTextField>();
static List<JTextField> listLable = new ArrayList<JTextField>();
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setLayout(new GridBagLayout());
frame.setPreferredSize(new Dimension(990, 990));
frame.setTitle("Form Creator");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
GridBagConstraints frameConstraints = new GridBagConstraints();
JButton addButton = new JButton("Add");
JButton createButton = new JButton("Create Form");
addButton.addActionListener(new ButtonListener());
createButton.addActionListener(new CreateForm());
frameConstraints.gridx = 0;
frameConstraints.gridy = 0;
frame.add(addButton, frameConstraints);
frameConstraints.gridx = 0;
frameConstraints.gridy = 1;
frame.add(createButton, frameConstraints);
panel.setPreferredSize(new Dimension(900, 900));
panel.setLayout(new GridBagLayout());
panel.setBorder(LineBorder.createBlackLineBorder());
frameConstraints.gridx = 0;
frameConstraints.gridy = 2;
frameConstraints.weighty = 1;
frame.add(panel, frameConstraints);
frame.pack();
frame.setVisible(true);
}
static class ButtonListener implements ActionListener {
@Override
public void actionPerformed(ActionEvent arg0) {
panel.removeAll();
JTextField jTextField = new JTextField();
jTextField.setSize(5, 20);
JTextField jTextField2 = new JTextField();
jTextField2.setSize(6, 20);
JTextField jTextField3 = new JTextField();
jTextField3.setSize(7, 20);
JTextField jTextField4 = new JTextField();
jTextField4.setSize(8, 20);
listOfTextFields.add(jTextField);
listDataType.add(jTextField2);
listRange.add(jTextField3);
listLable.add(jTextField4);
listOfLabels.add(new JLabel("LableName | FieldName | DataType | Range "));
GridBagConstraints textFieldConstraints = new GridBagConstraints();
GridBagConstraints labelConstraints = new GridBagConstraints();
GridBagConstraints gridlistDataType = new GridBagConstraints();
GridBagConstraints gridlistRange = new GridBagConstraints();
GridBagConstraints gridlistLable = new GridBagConstraints();
for (int i = 0; i < indexer; i++) {
labelConstraints.gridx = 0;
labelConstraints.gridy = i;
labelConstraints.insets = new Insets(10, 10, 10, 10);
textFieldConstraints.gridx = 1;
textFieldConstraints.fill = 1;
textFieldConstraints.weightx = 0.5;
textFieldConstraints.insets = new Insets(10, 10, 10, 10);
textFieldConstraints.gridy = i;
gridlistDataType.gridx = 2;
gridlistDataType.fill = 1;
gridlistDataType.weightx = 0.5;
gridlistDataType.insets = new Insets(10, 10, 10, 10);
gridlistDataType.gridy = i;
gridlistRange.gridx = 3;
gridlistRange.fill = 1;
gridlistRange.weightx = 0.5;
gridlistRange.insets = new Insets(10, 10, 10, 10);
gridlistRange.gridy = i;
gridlistLable.gridx = 4;
gridlistLable.fill = 1;
gridlistLable.weightx = 0.5;
gridlistLable.insets = new Insets(10, 10, 10, 10);
gridlistLable.gridy = i;
panel.add(listOfLabels.get(i), labelConstraints);
panel.add(listOfTextFields.get(i), textFieldConstraints);
panel.add(listDataType.get(i), gridlistDataType);
panel.add(listRange.get(i), gridlistRange);
panel.add(listLable.get(i), gridlistLable);
}
GridBagConstraints c = new GridBagConstraints();
c.gridx = 0;
c.gridy = indexer;
c.weighty = 1;
panel.add(new JLabel(), c);
indexer++;
panel.updateUI();
}
}
static class CreateForm implements ActionListener {
@Override
public void actionPerformed(ActionEvent arg0) {
panel.removeAll();
JTextField jTextField = new JTextField();
jTextField.setSize(5, 20);
JTextField jTextField2 = new JTextField();
jTextField2.setSize(6, 20);
JTextField jTextField3 = new JTextField();
jTextField3.setSize(7, 20);
JTextField jTextField4 = new JTextField();
jTextField4.setSize(8, 20);
listOfTextFields.add(jTextField);
listDataType.add(jTextField2);
listRange.add(jTextField3);
listLable.add(jTextField4);
listOfLabels.add(new JLabel("LableName | FieldName | DataType | Range "));
GridBagConstraints textFieldConstraints = new GridBagConstraints();
GridBagConstraints labelConstraints = new GridBagConstraints();
GridBagConstraints gridlistDataType = new GridBagConstraints();
GridBagConstraints gridlistRange = new GridBagConstraints();
GridBagConstraints gridlistLable = new GridBagConstraints();
for (int i = 0; i < indexer; i++) {
labelConstraints.gridx = 0;
labelConstraints.gridy = i;
labelConstraints.insets = new Insets(10, 10, 10, 10);
textFieldConstraints.gridx = 1;
textFieldConstraints.fill = 1;
textFieldConstraints.weightx = 0.5;
textFieldConstraints.insets = new Insets(10, 10, 10, 10);
textFieldConstraints.gridy = i;
gridlistDataType.gridx = 2;
gridlistDataType.fill = 1;
gridlistDataType.weightx = 0.5;
gridlistDataType.insets = new Insets(10, 10, 10, 10);
gridlistDataType.gridy = i;
gridlistRange.gridx = 3;
gridlistRange.fill = 1;
gridlistRange.weightx = 0.5;
gridlistRange.insets = new Insets(10, 10, 10, 10);
gridlistRange.gridy = i;
gridlistLable.gridx = 4;
gridlistLable.fill = 1;
gridlistLable.weightx = 0.5;
gridlistLable.insets = new Insets(10, 10, 10, 10);
gridlistLable.gridy = i;
panel.add(listOfLabels.get(i), labelConstraints);
panel.add(listOfTextFields.get(i), textFieldConstraints);
panel.add(listDataType.get(i), gridlistDataType);
panel.add(listRange.get(i), gridlistRange);
panel.add(listLable.get(i), gridlistLable);
}
GridBagConstraints c = new GridBagConstraints();
c.gridx = 0;
c.gridy = indexer;
c.weighty = 1;
panel.add(new JLabel(), c);
indexer++;
panel.updateUI();
}
}
}