我正在尝试使用代码而不是设计器手动创建表单,我已经使用设计器创建了。
这是我到目前为止提出的手动代码,但我在并排对齐标签和文本字段时遇到问题
mport java.awt.*;
import javax.swing.*;
/**
*
* @author jackandjill
*/
public class summinup_copy extends JFrame
{
private JLabel lblTitle, lblOctal, lblDecimal, lblMessage ;
private JTextField txtOctal, txtDecimal;
private JButton calculate_btn;
public summinup_copy()
{
JPanel panel = (JPanel)this.getContentPane();
panel.setLayout(new BorderLayout());
JPanel panCentre = new JPanel();
panCentre.setLayout(new GridLayout(3,3));
lblTitle = new JLabel("Area of Triangle");
lblTitle.setFont(new Font("Arial", 1, 20));
lblTitle.setHorizontalAlignment(JLabel.CENTER);
lblOctal = new JLabel("Octal");
lblOctal.setHorizontalAlignment(JLabel.CENTER) ;
//lblDecimal = new JLabel("Decimal");
//
//lblDecimal.setHorizontalAlignment(JLabel.CENTER);
lblMessage = new JLabel("Result will be displayed here");
lblMessage.setForeground(Color.red);
lblMessage.setHorizontalAlignment(JLabel.CENTER);
txtOctal = new JTextField("0", 5);
txtOctal.setHorizontalAlignment(JLabel.CENTER);
//txtDecimal = new JTextField("0", 5);
//
//txtDecimal.setHorizontalAlignment(JLabel.CENTER);
calculate_btn = new JButton("Calculate Area");
//AHandlerClass aListener = new AHandlerClass() ;
//btnOtoD.addActionListener(aListener);
//btnDtoO.addActionListener(aListener);
panCentre.add(lblOctal);
//panCentre.add(lblDecimal);
panCentre.add(txtOctal);
//panCentre.add(txtDecimal);
panCentre.add(calculate_btn);
//panCentre.add(btnDtoO);
panel.add(lblTitle, BorderLayout.NORTH);
panel.add(lblMessage,BorderLayout.SOUTH);
panel.add(panCentre, BorderLayout.CENTER);
}
public static void main(String args[]) {
summinup_copy myGui = new summinup_copy();
myGui.setTitle("Bharath");
myGui.setSize(400, 200);
myGui.setVisible(true);
}
}