Create Triangle.java

Author: lironmiz

Triangle.java

@@ -0,0 +1,50 @@
+//*******************************************************
+// Triangle.java
+// Checking whether three numbers form the length of a triangle
+//*******************************************************
+import java.util.Scanner;
+public class Triangle
+{
+    public static void main (String [] args)
+    {
+        Scanner scan = new Scanner (System.in); // Create Reader
+        System.out.println("This program Checking whether three numbers form the length of a triangle.");
+        System.out.print("Enter  three numbers"); // Ask for input
+        int x = scan.nextInt(); // Read value from user
+        int y = scan.nextInt();
+        int z = scan.nextInt();
+        
+        // Checking the correctnees of the input
+        if( x <= 0 || y <= 0 || z <= 0)
+        {
+            System.out.println("The numbers: " + x + ", " + y + " and " + z + " cannot represent a triangle");
+        }
+        // checking if the numbers form triangle
+        else if (x + y > z && x + z > y && y + z > x)
+        {
+            // checking if the triangle is Equilateral triangle 
+            if (x==y && x==z)
+            {
+                System.out.print("The numbers: " + x + ", " + y + " and " + z + " represent an equilateral triangle");
+            }
+            // Checking if the triangle is isosceles triangle
+            else if((x==y) || (x==z) || (y==z))
+            {
+                System.out.print("The numbers: " + x + ", " + y + " and " + z + " represent an isosceles triangle");
+            }
+            // Checking if the triangle is right-angle triangle
+            else if ( (x*x + y*y == z*z) || (y*y + z*z == x*x) || (x*x + z*z == y*y))
+            {
+                System.out.print("The numbers: " + x + ", " + y + " and " + z + " represent an right-angle triangle");
+            }
+            else
+            {
+                System.out.print("The numbers: " + x + ", " + y + " and " + z + " represent an common triangle");
+            }
+        }
+        else
+        {
+            System.out.print("The numbers: " + x + ", " + y + " and " + z + " cannot represent a triangle");
+        }
+    }// end of method main
+}// end of class Triangle