Java FlowLayout高度问题

Question

我正忙着编写Java，我需要两个JPanes并排。

我有一个单独的JPane，我正在使用它作为父JPane，它包含两个并行的子JPanes，每个都有一个用于分离的边界。

每个子JPane的内部都有一个JPane，其中有一个定位元素的GridBagLayout。我的代码如下

import javax.swing.*;
import java.awt.*;

public class JavaGui extends JFrame {

   public static void main(String[] args) {

      JavaGui window = new JavaGui();

      // setup window here

      // main panels    

      JPanel container = new JPanel(new FlowLayout(FlowLayout.LEFT));
      JPanel panelLeft = new JPanel(new FlowLayout(FlowLayout.LEFT));
      JPanel panelRight = new JPanel(new FlowLayout(FlowLayout.LEFT));

      window.add(container);
      container.add(panelLeft);
      container.add(panelRight);

      // grid layout panels

      JPanel leftGrid = new JPanel(new GridBagLayout());
      JPanel rightGrid = new JPanel(new GridBagLayout());
      GridBagConstraints grid = new GridBagConstraints();

      panelLeft.add(leftGrid);
      panelRight.add(rightGrid);

      // test labels

      JLabel label01 = new JLabel("Label 01");
      JLabel label02 = new JLabel("Label 02");
      JLabel label03 = new JLabel("Label 03");
      JLabel label04 = new JLabel("Label 04");

      // add labels to grids

      grid.gridx = 0;
      grid.gridy = 0;
      leftGrid.add(label01, grid);
      grid.gridx = 0;
      grid.gridy = 0;
      rightGrid.add(label02, grid);
      grid.gridx = 0;
      grid.gridy = 1;
      rightGrid.add(label03, grid);
      grid.gridx = 0;
      grid.gridy = 2;
      rightGrid.add(label04, grid);

      // add borders to see sizes

      panelLeft.setBorder(BorderFactory.createLineBorder(Color.black));
      panelRight.setBorder(BorderFactory.createLineBorder(Color.black));

   };

};

然而，当我添加边框以查看左面板和右面板的大小时，我看到它们有不同的高度，运行时如下所示：

当前

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有可能让这些面板保持相同的高度吗？

必填项

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Answer 1

使用带有行和列参数的网格布局创建左网格和右网格

JPanel leftGrid =新JPanel(新GridLayout(3，3))；

JPanel rightGrid =新JPanel(新GridLayout(3，3))；