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# CSC-111 Point In Triangle Homework

a guest Oct 13th, 2016 149 Never
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1. // Antonio C. Silvestri
2. // 10/13/2016
3. // Point in Triangle Homework
4.
5. import java.util.*;
6.
7. public class PointInTriangle {
8.
9.     public static void main(String[] args) {
10.         Scanner input = new Scanner(System.in);
11.         System.out.print("Enter y intercept: ");
12.         double yint = input.nextDouble();
13.         System.out.print("Enter x intercept: ");
14.         double xint = input.nextDouble();
15.
16.         if (yint <= 0 || xint <= 0)
17.             System.out.println("Please enter only positive intercepts.");
18.         else {
19.             System.out.print("Enter point (x,y): ");
20.             double x = input.nextDouble();
21.             double y = input.nextDouble();
22.
23.             boolean pointInTriangle;
24.             if (x < 0 || x > xint)
25.                 pointInTriangle = false;
26.             else if (y < 0)
27.                 pointInTriangle = false;
28.             else {
29.                 double yTriangle = (-yint / xint) * x + yint;
30.                 if (y < yTriangle)
31.                     pointInTriangle = true;
32.                 else
33.                     pointInTriangle = false;
34.             }
35.
36.             if (pointInTriangle)
37.                 System.out.println("Point In Triangle");
38.             else
39.                 System.out.println("Point NOT In Triangle");
40.         }
41.         input.close();
42.     }
43.
44. }
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