为什么我的 JLabels 和 JTextFields 没有出现在 JPanel 中？

发布于 2024-12-07 10:03:48 字数 1226 浏览 6 评论 0原文

我有一个 JDialog，里面有一个使用 FlowLayout 的 JPanel

现在我已经使用 Netbeans GUI 生成器创建了 3 个标签和文本字段，并且我想使用代码添加另外 2 个文本字段

我已经调整了面板的大小这样，当我添加新标签和具有首选大小的文本字段时，新的标签集 - 文本字段将位于

JDialog 中某处的

        JLabel cores = new JLabel("Cores");
        cores.setPreferredSize(new Dimension(70,15));
        first = new JTextField();
        first.setPreferredSize(new Dimension(140,20));
        JLabel power = new JLabel("Power");
        power.setPreferredSize(new Dimension(70,15));
        second = new JTextField();
        second.setPreferredSize(new Dimension(140,20));
        panel2.add(cores);panel2.add(first);panel2.add(power);panel2.add(second);

前一组标签下，当我编译程序时，标签不会显示也没有文本字段

当我向下并单击时，我得到以下结果

http://img684.imageshack.us/img684/13/unledlpy.png

如果我输入内容，文本字段会出现

http://img5.imageshack.us/img5/6796/unledhig.png

但标签没有出现，我认为我没有对属性进行任何更改，任何帮助将不胜感激谢谢

原文

I have a JDialog and inside it I have a JPanel that uses FlowLayout

now I've created 3 labels and text fields using the Netbeans GUI Builder, and I want to add 2 more text fields using code

I've adjusted the size of the panel so that when I add a new label and a textfield with a preferred size the new set of label - textfield will be under the previous set

somewhere in the JDialog I do something like this

        JLabel cores = new JLabel("Cores");
        cores.setPreferredSize(new Dimension(70,15));
        first = new JTextField();
        first.setPreferredSize(new Dimension(140,20));
        JLabel power = new JLabel("Power");
        power.setPreferredSize(new Dimension(70,15));
        second = new JTextField();
        second.setPreferredSize(new Dimension(140,20));
        panel2.add(cores);panel2.add(first);panel2.add(power);panel2.add(second);

when I compile the program, the labels don't show up and neither do the textfields

when I go down and click I have the following result

http://img684.imageshack.us/img684/13/unledlpy.png

if I type something, the text field appears

http://img5.imageshack.us/img5/6796/unledhig.png

the labels don't appear though, I don't think I made any changes to the properties, any help would be appreciated thanks

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