java 单击按钮后打开一个新的 JFrame 并关闭上一个
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Opening a new JFrame and close previous after clicking button
提问by Steven
How can I code a button that, when clicked, closes the current JFrameand opens a new one?
我如何编写一个按钮，点击时关闭当前按钮JFrame并打开一个新按钮？
This is what I have so far, but the old frame stays open:
到目前为止，这是我所拥有的，但旧框架保持打开状态：
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
practise1 s = new practise1();
s.setVisible(true);
}
I have tried using .close()after the first {but it gives me an error.
我试过.close()在第一个之后使用，{但它给了我一个错误。
回答by sneelhorses
If you plan on using the originial JFrame later, use setVisible(false)on the original JFrame. If you plan on closing the first JFrame and never reusing it, you can use dispose().
如果您打算稍后使用setVisible(false)原始 JFrame，请在原始 JFrame 上使用。如果您打算关闭第一个 JFrame 并且不再重用它，您可以使用dispose().
回答by Raildex
public void actionPerformed(ActionEvent e)
{
if(e.getSource () == button)
{
test = new JFrame();
test.setSize(300,300);
test.setVisible (true);
this.dispose();
}
}
Dispose AFTER creating the new Frame.
创建新框架后处置。
回答by Steven
Thanks for the help everyone. I got it working using the this.dispose(); method
谢谢大家的帮助。我使用 this.dispose(); 让它工作了。方法
回答by Parth Pithadia
Lets say current Frame is FirstFrame and clicking on JButton goes to NewFrame
假设当前 Frame 是 FirstFrame 并单击 JButton 转到 NewFrame
import javax.swing.*;
public class FirstFrame extends Jframe implements ActionListener{
JButton button;
public FirstFrame(){
setVisible(true);
setSize(500,500);
button=new JButton("Click me");
button.addActionListner(this);
add(button);
}
public static void main(String[] args)
{
new FirstFrame();
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==button)
{
NewFrame nf=new NewFrame(); // Clicking on the Button will OPEN new Frame in NewFrame.java file
dispose(); //this method will close the FirstFrame
}
}
}
