比如
public class MainFrame extends JFrame implements ActionListener{
String[] a = new String[100];
MainFrame(){
.........
}
然后我新建一个类C,我想在C中调用MainFrame中的数组元素a[1],并且赋值为a[1]=("aaa");
应该怎么写?
我在类C中写了MainFrame m= new MainFrame();
然后引用时m.a[1]=("aaa");
在监听后加
if(e.getSource()==add){
m.txt.append(text.getText()+"\n");
}
运行时却出现如此下报错
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)