单击按钮打开新屏幕或页面（java-eclipse）
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Open new screen or page on button click (java-eclipse)
提问by AndroidNovice21
I have a home page with title and a few buttons I cannot get a new window to open when i click on the button. Here is the code i have for the home page aswell as the class with next screen i am attempting to open trimed for what seems relevant. The NewTicketWindow class is also attached it is plain at the moment. Any help is appreciated.
我有一个带有标题和几个按钮的主页，当我点击按钮时，我无法打开一个新窗口。这是我的主页以及下一个屏幕的类的代码，我试图打开修剪似乎相关的内容。NewTicketWindow 类也已附加，目前很简单。任何帮助表示赞赏。
public class Home
{
private JFrame frame;
JInternalFrame internalFrame;
/**
* Launch the application.
*/
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
try
{
Home window = new Home();
window.frame.setVisible(true);
}
catch (Exception e)
{
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public Home()
{
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize()
{
frame = new JFrame();
frame.setBounds(100, 100, 450, 300);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JLabel title1 = new JLabel("City of Murphy");
JLabel title2 = new JLabel("Traffic Ticket Input System");
JButton newTicketButton = new JButton("New Ticket");
newTicketButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
}
});
JButton payTicketButton = new JButton("Make a Payment");
JButton reportButtton = new JButton("Ticket Report");
JButton exitButton = new JButton("Exit");
GroupLayout groupLayout = new GroupLayout(frame.getContentPane());
}
second class (the screen i want to open upon newticket button being pressed
第二类（我想在按下 newticket 按钮时打开的屏幕
public class NewTicketWindow extends JFrame
{
private JPanel contentPane;
/**
* Launch the application.
*/
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
try
{
NewTicketWindow frame = new NewTicketWindow();
frame.setVisible(true);
}
catch (Exception e)
{
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public NewTicketWindow()
{
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 450, 300);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
JLabel lblEnterNewTicket = new JLabel("Enter New Ticket Information");
GroupLayout gl_contentPane = new GroupLayout(contentPane);
}
采纳答案by Ronn Wilder
just add these lines into your action performed code -
只需将这些行添加到您的操作执行代码中 -
NewTicketWindow frame = new NewTicketWindow();
frame.setVisible(true);
回答by M Anouti
The ActionListenerof newTicketButtonshould create the new frame by calling the constructor of NewTicketWindow (same thing you are doing in the mainof NewTicketWindow):
该ActionListener的newTicketButton应该调用NewTicketWindow的构造函数创建新框架（同样的事情，你在做main的NewTicketWindow）：
JButton newTicketButton = new JButton("New Ticket");
newTicketButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
try
{
NewTicketWindow newTicketWindow = new NewTicketWindow();
newTicketWindow.setVisible(true);
}
catch (Exception ex)
{
ex.printStackTrace();
}
}
});
Also you need to add the newTicketButton to the home window:
您还需要将 newTicketButton 添加到主窗口：
frame.add(newTicketButton);
frame.add(newTicketButton);
