Consider the following class definitions.
public class Data
{
private int x;
public void setX(int n)
{
x = n;
}
//... other methods not shown
}
public class EnhancedData extends Data
{
private int y;
public void setY(int n)
{
y = n;
}
//... other methods not shown
}
Assume that the following declaration appears in a client program.
EnhancedData item = new EnhancedData();
Which of the following statements would be valid?
I. item.y = 16;
II. item.setY(16);
III.item.setX(25);