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listas3/source/exercicio7.cs

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+using System;
+
+namespace exercicios
+{
+	public class Exercicio7
+		{
+			public static void Init()
+			{
+				float x,y;
+				Console.WriteLine("Write the values for X and Y");
+				x = float.Parse(Console.ReadLine());
+				y = float.Parse(Console.ReadLine());
+				Console.WriteLine("(x{0:N2};y{1:N2}) is in quadrant {2}",
+									x,y,verificaQuadrante(x,y));
+			}
+			static char verificaQuadrante(float x, float y)
+			{
+				if (x > 0)
+				{
+					if(y >= 0)return '1';
+					else if(y < 0)return '4';
+				}
+				else if (x < 0)
+				{
+					if(y >= 0)return '2';
+					else if(y < 0)return '3';
+				}
+				return 'N';
+			}
+	}
+}