爲什麼我在調用getParameter()
這個非常簡單的JApplet
實例時調用NullPointerException
?appletviewer/JRE1.6.0_30中的JApplet - getParameter(「someArg」)上的NullPointerException
public class TestPad extends javax.swing.JApplet {
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
TestPad appletDefn = new TestPad();
TestPad.sSomeParam = (String)appletDefn.getParameter("sSomeParam");
appletDefn.init();
appletDefn.start();
}
});
}
private static String sSomeParam = "sSomeArg";
}
沒有安全策略文件,沒有其他的包,只有兩個庫: 一)擺動佈局1.0.4.jar B)JDK-1.6(默認)