Java GUI repaint() 问题？

发布于 2024-07-10 03:52:08 字数 490 浏览 7 评论 0原文

我有一个 JFrame。该 JFrame 包含一个 JButton。我单击 JButton，然后创建了 10 个 JTextField。

问题：在通过调整窗口大小“强制重新绘制（）”之前我看不到它们。只有这样我才能看到创建的 JTextFields。

代码：

JPanel points = new JPanel();

//Creating the JTextFields:
for (int i=0; i<10; i++) {
    JTextField textField = new JTextField();
    points.add(textField);
}

repaint();
this.repaint();
super.repaint();
points.repaint();

谢谢 - 在 for 循环之后，我刚刚调用了 points.validate() 并且它起作用了......

原文

I have a JFrame. This JFrame contains a JButton. I click the JButton and 10 JTextFields are created.

the problem:
I cannot see them until "I force a repaint()" by resizing the window. Only then do I see the JTextFields created.

CODE:

JPanel points = new JPanel();

//Creating the JTextFields:
for (int i=0; i<10; i++) {
    JTextField textField = new JTextField();
    points.add(textField);
}

repaint();
this.repaint();
super.repaint();
points.repaint();

THANK YOU - after the for loop, I just called points.validate() and it worked...

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