实现itemListener时候的问题
carfi 2003-02-05 08:40:59 为何总是说:NULLPOINTER ASSIGNMENT 呢?没有NULLPOINTER呀
请各位大哥指点
public class CheckBoxListener implements ItemListener{
public void itemStateChanged(ItemEvent e){
Object source=e.getItemSelectable();
if(source==MyMenu.myMenu.jCheckBoxMenuItemStatusBar){
if(e.getStateChange()==ItemEvent.SELECTED){
//......
}
else
//......
}//if
if(source==MyMenu.myMenu.jCheckBoxMenuItemToolBar){
if(e.getStateChange()==ItemEvent.SELECTED){
//......
}
else
//......
}//if
}//itemStateChanged
}//CheckBoxListener