inner-class

Question

I'm having a problem calling the inner class, is there a problem in my code? how to call the inner class its methods and attributes?

class bullet
{
class pos
{
int x;
int y;
void add(int a, int b)
{
x += a;
y += b;
}
pos(int a, int b)
{
x = a;
y = b;
}
}
}

Answer 1

instantiate the inner class just like you would for a normal class.
public class outer {
private inner innerObject;
public outer()｛
innerObject = new inner();
innerObject.dosomething();
｝
private class inner ｛
public inner()｛
｝
public void dosomething()｛
//do something
｝
｝
｝

Answer 2

oh, this is Java btw. I don't know how other languages do it.