1    package bookExamples.ch26Graphics.draw2d; 
2     
3     
4    import java.awt.*; 
5     
6    public class Line2d extends Shape { 
7        int x1 = 0; 
8        int y1 = 0; 
9        int x2 = 1; 
10       int y2 = 1; 
11    
12       public Line2d(int _x1, int _y1, int _x2, int _y2) { 
13           x1 = _x1; 
14           y1 = _y1; 
15           x2 = _x2; 
16           y2 = _y2; 
17       } 
18    
19       public Line2d(Vec2d v1, Vec2d v2) { 
20           x1 = (int) v1.v[0]; 
21           y1 = (int) v1.v[1]; 
22           x2 = (int) v2.v[0]; 
23           y2 = (int) v2.v[1]; 
24       } 
25    
26       public void paint(Graphics g) { 
27           g.drawLine(x1, y1, x2, y2); 
28       } 
29    
30       public String toString() { 
31           return 
32                   "x1,y1,x2,y2=" + x1 + "," + y1 + "," + x2 + "," + y2; 
33       } 
34   } 
35