[英]Java button event handler won't resolve
我试图在我的GUI上设置一个偶数处理程序。 但是,当我声明该类然后在按钮上调用它时,它无法解析?
btnHigher = new JButton("Higher");
btnHigher.setBounds(190, 110, 75, 50);
btnHigher.addActionListener(new HigherHandler());
panel.add(btnHigher);
处理程序类:HigherHandler类实现ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
}
}
它只是抛出一个错误:HigherHandler无法解析为一种类型
btnHigher = new JButton("Higher");
btnHigher.setBounds(190, 110, 75, 50);
btnHigher.addActionListener(new HigherHandler());
panel.add(btnHigher);
下面的代码行可以这样编写,而不用创建新类。
btnHigher.addActionListener(new HigherHandler(){
// it will ask you to add implemented method here which is action performed method.
});
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