1: //ThreeD.java
2: //Three-dimensional coordinates.
4: public class ThreeD extends TwoD
5: {
6: int z;
8: public ThreeD
9: (
10: int a,
11: int b,
12: int c
13: )
14: {
15: super(a, b);
16: z = c;
17: }
18: }