public class AnoClass { public static void main(String[] args) { AnoTest ano1 = new AnoTest(); AnoTest ano2 = new AnoTest(){ //匿名类可以继承父类的方法,也可以重写父类的方法 void Show() { num=20; System.out.println("Function in extends,num="+num+";Calculate()="+Calculate()); }...
1,textField.addActionListener(newMyActionListener);---2,privateclassMyActionListnerimplementsActionList...
在方法中声明静态类，这是不应该做的。因此，将其从方法中删除，或者更好地使其成为一个匿名的内部类...
首先，其他对象需要通过某种方式将ActionListener注册到组合框中。我建议向您的类提供一个addActionListener...
Classes in javax.faces.event that implement ActionListener Modifier and TypeClass and Description class ActionListenerWrapper Provides a simple implementation of ActionListener that can be subclassed by developers wishing to provide specialized behavior to an...
The listener interface for receiving action events. The class that is interested in processing an action event implements this interface, and the object created with that class is registered with a component, using the component'saddActionListenermethod. When the action event occurs, that object's...
参数错误，addActionListener的参数是ActionListener类型的，而你调用的this是继承自JFrame的类。
One is your WizardGUI class which I'm guessing is referenced in your main somewhere and the other is a local variable named frame. In the constructor you are building everything in the frame instance. In the Sscreen method you are modifying the this instance so nothing that you've done ...
public EventListener[] getListeners(Class listenerType) 1. Here are the javadocs for the first and second methods. If you can identify among all listeners the one which you want to remove or if you want to remove all listeners this approach may help. ...
public EventListener[]getListeners(Class listenerType) Here are the javadocs for thefirstandsecondmethods. If you can identify among all listeners the one which you want to remove or if you want to remove all listeners this approach may help. ...