这段代码fun()显示没定义 该怎么定义呀？？？
public class try3{
public void test(){
try{
fun();
System.out.print("情况1");
}
catch(ArrayIndexOutOfBoundsException e)
{
System.out.print("情况2");
}
catch(Exception e)
{
System.out.print("情况3");
}
finally
{
System.out.print("finally");
}
}
}
