Reto#20 - Java

Retos/Reto #20 - LA TRIFUERZA [Media]/java/Cflorezp.java

@@ -0,0 +1,68 @@
+package reto20LaTrifuerza;
+
+import java.util.Scanner;
+
+public class Cflorezp {
+
+    public static void main(String[] args) {
+
+
+        Scanner input = new Scanner(System.in);
+        System.out.println("Cuantas filas desea por triangulo: ");
+        String numberOfRows = input.nextLine();
+        if(validationOfNumber(numberOfRows)){
+            drawTriforce(Integer.parseInt(numberOfRows));
+        }
+
+        input.close();
+    }
+
+    public static boolean validationOfNumber(String number){
+        if(number.equals("0") || number.equals("1") || !number.matches("[0-9]+") ){
+            System.out.println("El valor ingresado no es valido!!");
+            return false;
+        }
+        return true;
+    }
+
+    public static void drawTriforce(int n){
+        String star = "*";
+        int middle = ((4 * n) / 2) + 1;
+        int middleSecond = (middle + 1)  / 2;
+        int middleThird = middleSecond;
+        int dif = (2 * n) ;
+        String starSecond = "*";
+        String thirdStar = "*";
+
+        for(int i = 0; i< n; i++){
+            for(int j = 1; j<= (4 * n); j++){
+                if(j == middle){
+                    System.out.print(star);
+                    star = star.concat("**");
+                    middle -= 1;
+                }else {
+                    System.out.print(" ");
+                }
+            }
+            System.out.println();
+        }
+
+        for(int i = 0; i< n; i++){
+            for(int j = 1; j<= (4 * n); j++){
+                if(j == middleSecond){
+                    System.out.print(starSecond);
+                    starSecond = starSecond.concat("**");
+                    middleSecond -= 1;
+                }else if(j == (middleThird + dif)){
+                    System.out.print(thirdStar);
+                    thirdStar = thirdStar.concat("**");
+                    middleThird -= 3;
+                }
+                else {
+                    System.out.print(" ");
+                }
+            }
+            System.out.println();
+        }
+    }
+}