Question

说我们有类似的东西......

JRadioButton jb1 = new JRadioButton();
JRadioButton jb2 = new JRadioButton();
JRadioButton jb3 = new JRadioButton();
JRadioButton jb4 = new JRadioButton();
JRadioButton jb5 = new JRadioButton();
JRadioButton jb6 = new JRadioButton();
JRadioButton jb7 = new JRadioButton();
JRadioButton jb8 = new JRadioButton();
JRadioButton jb9 = new JRadioButton();
JRadioButton jb10 = new JRadioButton();
JRadioButton jb11 = new JRadioButton();
JRadioButton jb12 = new JRadioButton();
JRadioButton jb13 = new JRadioButton();
JRadioButton jb14 = new JRadioButton();
JRadioButton jb15 = new JRadioButton();
JRadioButton jb16 = new JRadioButton();
JRadioButton jb17 = new JRadioButton();
JRadioButton jb18 = new JRadioButton();
JRadioButton jb19 = new JRadioButton();
JRadioButton jb20 = new JRadioButton();

有没有办法使用循环添加所有这些radiobutton而不是一次一行，或者另一种更干净的方式，这只是循环草率。

应该清理一下我的意思，是否有办法编写一个循环，将所有这些按钮添加到面板？

Answer 1

这应该很简单：

JRadioButton[] buttons = new JRadioButton[20];
for (i = 0; i < buttons.length; i++)
    buttons[i] = new JRadioButton();

Answer 2

尝试使用List并执行以下操作：

List<JRadioButton> radioButtons = ..
for (int i =0; i<....;i++) {
    radioButtons.add(new JRadioButton());
}

然后您可以执行以下操作：

JRadioButton buttonAtSomeLocation = radioButtons.get(0);// by index

Answer 3

您可以使用（ FOR EXAMPLE ）

ArrayList<JRadioButton> myList = new ArrayList<>();

for(int i = 0; i < myList.size(); i++){
     myList.add(new JRadioButton());
}
for(int i = 0; i < myList.size(); i++){
     myList.get(i).doSomethingInJRadioButtonMetohd..... 
}

使用循环添加多个单选按钮？

3 个答案: