Java GradBagLayout不基于权重分布列

Java GradBagLayout不基于权重分布列,java,swing,user-interface,Java,Swing,User Interface,这就是我的GUI现在的样子: 我想让这三列平均分布。为此,我将每个权重设置为1/3。显然,它不起作用 以下是我创建框架的代码: public static JPanel createLayout(int rows) { JPanel product = new JPanel(new GridBagLayout()); String[] lables = {"School ", "Advanced #", "Novice # "}; double weight

这就是我的GUI现在的样子:

我想让这三列平均分布。为此,我将每个权重设置为1/3。显然,它不起作用

以下是我创建框架的代码:

public static JPanel createLayout(int rows) {
    JPanel product = new JPanel(new GridBagLayout());
    String[] lables = {"School    ", "Advanced #", "Novice #   "};
    double weight = .3333333333333;

    GridBagConstraints c = new GridBagConstraints();
    c.insets = new Insets(3, 3, 3, 3);
    c.weightx = weight;
    c.fill = GridBagConstraints.HORIZONTAL;
    c.anchor = GridBagConstraints.CENTER;
    c.gridy = 1;
    for (int j = 0; j < lables.length; j++) {
        c.gridx = j;
        JLabel l = new JLabel(lables[j]);
        product.add(l, c);
    }

    for (int i = 0; i < rows; i++) {
        c.gridy++;
        for (int j = 0; j < lables.length; j++) {
            c.gridx = j;
            JTextField f = new JTextField();
            product.add(f, c);
        }
    }
    c.gridy++;
    c.gridx = 0;
    c.anchor = GridBagConstraints.NORTHWEST;
    c.fill = GridBagConstraints.NONE;

    JPanel b = new JPanel();
    JButton add = new JButton("+");
    b.add(add);
    JButton delete = new JButton("-");
    b.add(delete);
    product.add(b, c);
    return product;
}
public static void main(String[] args) throws IOException {
    JFrame frame = new JFrame("Debate Calculator");
    JPanel debates = new JPanel();
    frame.add(createLayout(5), BorderLayout.NORTH);
    frame.pack();
    frame.setVisible(true);
}
publicstaticjpanelcreatelayout(int行){
JPanel产品=新的JPanel(新的GridBagLayout());
String[]标签={“学校”、“高级”、“新手”};
双倍重量=.3333;
GridBagConstraints c=新的GridBagConstraints();
c、 插图=新插图(3,3,3,3);
c、 重量x=重量;
c、 填充=GridBagConstraints.HORIZONTAL;
c、 锚点=GridBagConstraints.CENTER;
c、 gridy=1;
对于(int j=0;j
问题在于底部的按钮栏。将该元素上的gridwidth设置为余数。

问题在于,您的组件一开始的大小并不相同。我无法确切解释为什么它会这样做,但标签的大小各不相同,因为它们的字符数不同。我知道你试着把它做成同样的尺寸,但是a和W不一样

我将您的代码更改为使用以下代码,它似乎可以工作:

JTextField f = new JTextField(10);
现在,每个文本字段的宽度都大于标签的宽度,因此这是用于为每个列指定比例大小的宽度

您可以考虑使用网格布局。默认行为是使每个单元格大小相同