Ejemplo sin srp

Author: simonguzman

Roadmap/26 - SOLID SRP/java/simonguzman.java

@@ -0,0 +1,53 @@
+
+import java.io.FileWriter;
+
+public class simonguzman {
+    public static void main(String[] args) {
+        incorrectSrp();
+    }
+
+    /****************************** ejemplo sin srp(Incorrecto) ******************************/
+    public static void incorrectSrp(){
+        Invoice invoice = new Invoice("Laptop",2,1200.00);
+        invoice.printInvoice();
+        invoice.saveToFile();
+    }
+
+    static class Invoice{
+        private String product;
+        private int quantity;
+        private double price;
+
+        public Invoice(){
+
+        }
+
+        public Invoice(String product, int quantity, double price){
+            this.product = product;
+            this.quantity = quantity;
+            this.price = price;
+        }
+
+        public double calculateTotal(){
+            return quantity * price;
+        }
+
+        public void printInvoice(){
+            System.out.println("Producto: "+product);
+            System.out.println("Cantidad: "+quantity);
+            System.out.println("Precio: "+price);
+            System.out.println("Total: "+calculateTotal());
+        }
+        
+        public void saveToFile(){
+            try (FileWriter writer = new FileWriter("invoice.txt")){
+                writer.write("Producto: " + product + "\n");
+                writer.write("Cantidad: " + quantity + "\n");
+                writer.write("Precio Unitario: " + price + "\n");
+                writer.write("Total: " + calculateTotal() + "\n");
+            } catch (Exception e) {
+                System.out.println("Error al guardar la factura: "+e.getMessage());
+            }
+        }
+    }
+}