java 如何在java中使一组jbutton不可见
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How to make a set of jbuttons invisible in java
提问by Adesh
Apart from using button.setVisible(false), is there an easy way to set a set of jButtonsto invisible and visible again?
除了使用之外button.setVisible(false)，是否有一种简单的方法可以将一组设置jButtons为不可见和再次可见？
The algorithm is as follows - when the user clicks the checkout button, a set of payment buttons(denomination buttons are displayed). Trying to research if there is an easier way to accomplish this.
算法如下——当用户点击结账按钮时，会显示一组支付按钮（显示面额按钮）。尝试研究是否有更简单的方法来实现这一点。
回答by MadProgrammer
The better solution is to have your buttons in an array or List, but if you can't do that, you can walk the immediate container (JPanel) looking for all the components that are instances of JButton
更好的解决方案是将你的按钮放在一个数组 or 中List，但如果你不能这样做，你可以遍历直接容器 ( JPanel) 寻找所有作为实例的组件JButton
for (Component child : getComponents){
if (child instanceof JButton) {
((JButton)child).setVisible(false);
}
}
This is a little heavy handed so be careful
这有点笨手笨脚所以要小心
回答by Steve Kuo
Put all your UI components (JButton) in a collection, and create a utility method that iterates over them and set the visible state.
将所有 UI 组件 ( JButton) 放在一个集合中，并创建一个实用程序方法来迭代它们并设置可见状态。
