在处理比以前更大的项目时,我一直在寻找一个很好的方法来奠定良好的基础。如果我把所有内容都写在主要内容中就可以了在做这样的课程时,框架可以工作但是我添加的按钮不想出现:
//主
package taxsystem;
import java.awt.*;
import javax.swing.*;
public class Taxmain
{
public mainFrame mf;
public Interface gui;
public void startApplication()
{
mf = new mainFrame();
mf.startApp();
gui = new Interface();
gui.makeLayout();
}
public static void main(String[] args)
{
Taxmain tm = new Taxmain();
tm.startApplication();
}
}
//实际的框架
package taxsystem;
import java.awt.*;
import javax.swing.*;
public class mainFrame extends JFrame
{
public void startApp()
{
setResizable(false);
setVisible(true);
setSize(720,340);
setLocation(0,0);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setBackground(Color.WHITE);
setTitle("Tax Handler");
}
}
//布局(我创建没有出现的按钮)
package taxsystem;
import java.awt.*;
import javax.swing.*;
public class Interface extends JPanel
{
Taxmain mc;
public JButton testButton;
public void makeLayout()
{
testButton = new JButton();
testButton.setText("Printer");
testButton.setFont(new Font("verdana", Font.ITALIC, 16));
testButton.setForeground(Color.BLACK);
testButton.setFocusable(false);
testButton.setSize(new Dimension(150, 40));
testButton.setLocation(10, 10);
this.setLayout(null);
this.add(testButton);
}
}
目前看起来像这样:https://gyazo.com/fad5dbca6c59905faea0a8ac1fbd424a
在此先感谢,无论如何我还能改进我到目前为止的代码吗?
答案 0 :(得分:0)
您需要将JPanel添加到JFrame
SELECT *
FROM person
WHERE my_schema.isEligible(?, value) > -1