将 Jbutton 添加到 Jpanel

本文介绍了将 Jbutton 添加到 Jpanel的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

有人能告诉我这段代码有什么问题吗?我正在尝试将按钮添加到我的 JPanel 中

can somebody tell me what is wrong with this code i am trying to add the buttons to my JPanel

ArrayList<JButton> buttons = new ArrayList<JButton>(); JPanel createButtonspane(){ bpanel = new JPanel(); for(int i=0; i<10; i++){ buttons.add(new JButton(""+i)); bpanel.add(buttons); } return bpanel; }

推荐答案

此代码无法编译，因为 JPanel 没有 add() 的重载，它需要一个JButton 数组，因此您不能将整个按钮数组添加到 JPanel(即使可以，您也需要在 之外进行>for()-循环).

This code does not compile because JPanel does not have an overload of add() which takes an array of JButtons, so you can not add a whole array of buttons to the JPanel (even if it was possible, you would need to do it outside of your for()-loop).

只需将您的按钮直接添加到 JPanel:

Simply add your button directly to the JPanel:

JPanel createButtonspane(){ bpanel = new JPanel(); for(int i=0; i<10; i++){ bpanel.add(new JButton(""+i)); } return bpanel; }

如果以后还需要引用个别的JButton，另外添加到数组中:

If you still need to refer to the individual JButtons later, add them to the array in addition:

JPanel createButtonspane(){ bpanel = new JPanel(); for(int i=0; i<10; i++){ JButton button = new JButton(""+i); buttons.add(button); bpanel.add(button); } return bpanel; }