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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		Rectangle r1 = new Rectangle(2);
  13. 		Cube c = new Cube(r1);
  14. 		Rectangle r = c.getFace();
  15. 		System.out.println(c.volume()+"\n");
  16. 		r.a = 3;
  17. 		System.out.println(c.volume());
  18. 	}
  19. }
  20.  
  21. class Rectangle {
  22. 	int a = 0;
  23. 	public Rectangle(int r) {
  24. 		a = r;
  25. 	}
  26. 	public int getLength() {
  27.     return this.a; 
  28.   }
  29. }
  30.  
  31. class Cube {
  32.   private Rectangle mFace;
  33.  
  34.   public Cube(Rectangle rectangle) {
  35.     mFace = rectangle;
  36.   }
  37.  
  38.   public Rectangle getFace() {
  39.     return mFace; 
  40.   }
  41.  
  42.   public int volume() {
  43.     int length = this.mFace.getLength();
  44.     return length * length * length;
  45.   }
  46. }
Success #stdin #stdout 0.08s 33940KB
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https://ideone.com/zI5BNG
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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