class Inner{   private int x;   public void setX(int x) {     this.x=x;   }  public int getX(){    return x;  } } class Outer{   private Inner y;  public void setY(Inner y) {     this.y=y;   }  public Inner getY(){     return y;   } } public class Gamma{  public static void main(String [] args){   Outer o=new Outer();  Inner i=new Inner();   int n=10;  i.setX(n);   o.setY(i);  /* insert code here. */   System.out.println(o.getY().getX());  } }