Java - 有按钮显示箭头 [英] Java - having buttons displaying arrows

问题描述

我想在Java中有一个显示箭头的按钮 - 就像在键盘上一样。
到目前为止，我有这个

I would like to have a buttons in Java which shows the arrows - like on the keyboard. So far I have this

JButton arrowUp = new JButton("^");
JButton arrowDown = new JButton("v");
JButton arrowLeft = new JButton("<");
JButton arrowRight = new JButton(">");

它有点工作......但看起来不太好。

It kinda works ... but does not look quite nice.

任何帮助如何改进这一点表示赞赏

Any help how to improve this is appreciated

推荐答案

Swing有一个默认的箭头按钮类< a href =http://docs.oracle.com/javase/7/docs/api/javax/swing/plaf/basic/BasicArrowButton.html\"rel =noreferrer> BasicArrowButton

Swing has a default arrow button class that is BasicArrowButton

示例：

    JFrame frame = new JFrame("Arrow Button Demo");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setLayout(new BorderLayout());
    frame.add(new BasicArrowButton(BasicArrowButton.EAST), BorderLayout.EAST);
    frame.add(new BasicArrowButton(BasicArrowButton.NORTH), BorderLayout.NORTH);
    frame.add(new BasicArrowButton(BasicArrowButton.SOUTH), BorderLayout.SOUTH);
    frame.add(new BasicArrowButton(BasicArrowButton.WEST), BorderLayout.WEST);
    frame.pack();
    frame.setVisible(true);

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