[问答题]
程序如下:
∥Java_3.html
importjava.awt.*;
import.java.awt.event.*;
∥**********Found**********
publicclassJava_3(5)AetionListener
{
publicstaticvoidmain(Stringargs[])
{
Java_3tb=newJava_3();
Framef=newFrame("ButtonTest");
f.setSize(200,100);
f.setLayout(newFlowLayout(FlowLayout.CENTER));
Buttonb=newButton("PresstheButton!");
∥**********Found**********
b.(6)(tb);
f.add(b);
f.setVisible(true);
}
publicvoidactionPerformed(ActionEvente)
}
Framefr=newFrame("AnOther");
fr.setBackground(Color.green);
fr.add(newLabel("Thisframeshowswhen&q