如何知道哪个JCheckBox发送了ItemEvent [英] How to know which JCheckBox sent ItemEvent

问题描述

我的Swing项目中有一些复选框。对于每个复选框，选择/取消选择要执行的特定查询。我知道一种获取复选框来源的方法是

I have a number of checkboxes in my Swing Project. For each checkbox select/deselect a particular query is to be executed. I know one way of getting the source of checkbox is

public void itemStateChanged(ItemEvent e)  {
if(e.getSource=="checkbox object")
{ 
some code goes here; 
}
}

如果我有比这个解决方案更少的复选框最好，但如果我有很多复选框，那么我必须写长的代码。

If i have small number of checkboxes than this solution is best but if i have many checkboxes then i have to write lengthy code. Is there a way to find the object of checkbox that causes the event in a single command?

推荐答案

您可以通过以下方式获取选中的复选框：像这样

You can get selected checkbox by like this

JCheckBox checkBox1 = new JCheckBox("Check1");
 JCheckBox checkBox2 = new JCheckBox("Check2");
 checkBox1.setName("Check1");
 checkBox2.setName("Check2");
 ItemListener listener = new ItemListener() {
    @Override
    public void itemStateChanged(ItemEvent e) {
        JCheckBox check = (JCheckBox)e.getSource();
         String name = check.getName();
         System.out.println(name);
    }
};
checkBox1.addItemListener(listener);
checkBox2.addItemListener(listener);

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