52:03.137: E/AndroidRuntime(16925): at android.app.ActivityThread$H.handleMessage(ActivityThread.java1237)07-08 13:52:03.137: E/AndroidRuntime(16925): at and
我做了actionPerformed (ActionEvent ev) {},并将我的登录按钮放在lg.addActionListener(这)中调用它;importjavax.swing.*;import java.applet.Applet;
public class LoginScreen extends