Java - JLabel和垂直框之间的距离

Question

我写了这个代码用于实现一个盒子，我把四个JRadioButtons

JRadioButton beginner = new JRadioButton("Beginner"); beginner.setSelected(true);
JRadioButton intermedie = new JRadioButton("Intermedie");
JRadioButton expert = new JRadioButton("Expert");
JRadioButton custom = new JRadioButton("Custom");

Box boxDifficulty = Box.createVerticalBox();
boxDifficulty.setBorder(BorderFactory.createEmptyBorder(10, 0, 0, 50));
boxDifficulty.add(beginner);
boxDifficulty.add(intermedie);
boxDifficulty.add(expert);
boxDifficulty.add(custom);

此外，我使用setBorder(BorderFactory.createEmptyBorder(10, 0, 0, 50))方法设置了框的边框。

另外，我创建了一个JLabel来指示框的标题：

JLabel difficulty = new JLabel("Choose the difficulty:");

这是代码的完整部分：

Box boxDifficulty = Box.createVerticalBox();
boxDifficulty.add(difficulty);
boxDifficulty.setBorder(BorderFactory.createEmptyBorder(10, 0, 0, 50));
boxDifficulty.add(beginner);
boxDifficulty.add(intermedie);
boxDifficulty.add(expert);
boxDifficulty.add(custom);

如何增加JLabel和JRadioButton之间的空间？

Answer 1

  

如何增加JLabel和JRadioButton之间的空间？

添加标签后，您可以在面板中添加间距组件：

boxDifficulty.add(difficulty);
boxDifficulty.add( Box.createVerticalStrut(...) );

支柱是固定高度（宽度）的不可见组件。