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
有人可以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
该代码无法编译,因为JPanel没有add()的重载,该重载需要JButton s的数组,因此您不能添加JPanel的整个按钮阵列(即使有可能,您也需要在for()循环之外进行操作).
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; }如果以后仍然需要引用各个JButton,请将它们另外添加到数组中:
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; }更多推荐
将Jbutton添加到Jpanel
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