java - java中如何将2个容器放入1个容器中？

Question

我的类(class)有 4 个文本字段部分，1 个在顶部，1 个在左侧，2 个在右侧。由于我使用的是容器，所以我认为我需要将这 2 个放在 1 个大容器下，以便我可以将其位置设置在“东部”，但我不知道如何...

private void display1(Container container){
    JPanel panel = new JPanel(new GridBagLayout());
    GridBagConstraints constraint = new GridBagConstraints();
    panel.setLayout(new GridLayout(1,1));
    display1 = new JTextField("testing");
    constraint.gridx = 4;
    constraint.gridy = 0;
    panel.add(displaytrain, constraint);
    container.add(panel);
}

private void display2(Container container){
    JPanel panel = new JPanel(new GridBagLayout());
    GridBagConstraints constraint = new GridBagConstraints();
    panel.setLayout(new GridLayout(1,1));
    display2 = new JTextField("testing");
    constraint.gridx = 4;
    constraint.gridy = 0;
    panel.add(displaytrain, constraint);
    container.add(panel);
}
private void bigDisplay(Container container){
    JPanel panel = new JPanel(new GridBagLayout());
    GridBagConstraints constraint = new GridBagConstraints();
    //putting the dispay1 and display2 here...?
    container.add(panel, "East");
}

Answer 1

是否要将display1()和2插入到bigDisplay中创建的面板中？

如果是这样，在每个 displayX 中，无需将您创建的面板添加到容器中，只需返回它并将其添加到 bigDisplay 上创建的面板

private JPanel display1(){
    JPanel panel = new JPanel(new GridBagLayout());
    GridBagConstraints constraint = new GridBagConstraints();
    panel.setLayout(new GridLayout(1,1));
    display1 = new JTextField("testing");
    constraint.gridx = 4;
    constraint.gridy = 0;
    panel.add(display1, constraint);
    return panel;
}

private JPanel display2(){
    JPanel panel = new JPanel(new GridBagLayout());
    GridBagConstraints constraint = new GridBagConstraints();
    panel.setLayout(new GridLayout(1,1));
    display2 = new JTextField("testing");
    constraint.gridx = 4;
    constraint.gridy = 0;
    panel.add(display2, constraint);
    return panel;
}
private void bigDisplay(Container container){
    JPanel panel = new JPanel(new GridBagLayout());
    panel.setLayout(new GridLayout(1,1));
    GridBagConstraints constraint = new GridBagConstraints();
    panel.add (display1 (), constraint);
    panel.add (display2 (), constraint);
    container.add(panel, "East");
}