Inner classes

[Venkat Ramsimha]

class MyOuter2
{
private String x = "Outer2";
public static void main(String args[])
{
MyOuter2.MyInner i = new MyOuter2().new MyInner();
i.seeOuter();
}
void doStuff()
{
class MyInner
{
public void seeOuter()
{
System.out.println("Outer x is " + x);
} // close inner class method
} // close inner class definition
} // close outer class method doStuff()
} // close outer class


THE ABOVE PROGRAM WITH RESPECTIVE TO INNER CLASSES IS GIVING COMPILE TIME ERRORS.

Can anybody provide the explanation for the above?

Thanks,
venkat

[Jas Oberai]

Hi,
This is a K&B example,read the following statement stated there:

A method-local inner class can be instantiated only within the method where the inner
class is defined

So,you need to do this instead,as shown in book:

public class MyOuter2 
{
private String x = "Outer2";
public static void main(String args[])
{
//MyOuter2.MyInner i = new MyOuter2().new MyInner(); 
//i.seeOuter();
}
void doStuff() 
{
class MyInner 
{
public void seeOuter() 
{
System.out.println("Outer x is " + x);
} // close inner class method
} // close inner class definition
MyInner i = new MyInner();
i.seeOuter();
} // close outer class method doStuff()
} // close outer class

Hope that helps!!!