Merge pull request mouredev#7370 from danhingar/ejercicio27

#27 - Java

Roadmap/27 - SOLID OCP/java/danhingar.java

@@ -0,0 +1,161 @@
+import java.util.HashMap;
+import java.util.Map;
+
+public class danhingar {
+
+    public static void main(String[] args) {
+        Form1 square = new Square();
+        square.draw();
+
+        Form1 circle = new Circle();
+        circle.draw();
+
+        Form1 triangle = new Triangle();
+        triangle.draw();
+
+        //Extra 
+        Calculator calculator = new Calculator();
+
+        calculator.addOperation("addition", new Addition());
+        calculator.addOperation("substration", new Substration());
+        calculator.addOperation("multiplication", new Multiplication());
+        calculator.addOperation("division", new Division());
+        calculator.addOperation("power", new Power());
+
+        System.out.printf("Resultado %f\n",calculator.calculate("addition",5.0,3.5));
+        System.out.printf("Resultado %f\n",calculator.calculate("substration",10.0,4.0));
+        System.out.printf("Resultado %f\n",calculator.calculate("multiplication",5.0,3.0));
+        System.out.printf("Resultado %f\n",calculator.calculate("division",20.0,5.0));
+        System.out.printf("Resultado %f\n",calculator.calculate("power",2.0,2.0));
+        System.out.printf("Resultado %f\n",calculator.calculate("example",2.0,2.0));
+    }
+
+
+}
+
+//Incorrecta
+class Form {
+
+    public void drawSquare(){
+        System.out.println("Dibujar un cuadrado");
+    }
+
+    public void drawCircle(){
+        System.out.println("Dibujar un círculo");
+    }
+
+    public void drawTriangle(){
+        System.out.println("Dibujar un círculo");
+    }
+
+}
+
+//Forma correcta
+
+interface Form1 {
+
+    void draw();
+}  
+
+
+class Square implements Form1 {
+
+    @Override
+    public void draw() {
+        System.out.println("Dibuja un cuadrado");
+    }
+
+
+}
+
+class Circle implements Form1 {
+
+    @Override
+    public void draw() {
+        System.out.println("Dibuja un círculo");
+    }
+
+
+}
+
+class Triangle implements Form1 {
+
+    @Override
+    public void draw() {
+        System.out.println("Dibuja un triángulo");
+    }
+
+
+}
+
+
+
+//EXTRA
+
+interface Operation {
+
+    Double operate(Double num1,Double num2);
+
+}
+
+class Addition implements Operation {
+
+    @Override
+    public Double operate(Double num1, Double num2) {
+        return num1+num2;
+    }
+}
+
+class Substration implements Operation {
+
+    @Override
+    public Double operate(Double num1, Double num2) {
+        return num1-num2;
+    }
+}
+
+class Multiplication implements Operation {
+
+    @Override
+    public Double operate(Double num1, Double num2) {
+        return num1*num2;
+    }
+}
+
+class Division implements Operation {
+
+    @Override
+    public Double operate(Double num1, Double num2) {
+        return num1/num2;
+    }
+}
+
+class Power implements Operation {
+
+    @Override
+    public Double operate(Double num1, Double num2) {
+        return Math.pow(num1, num2);
+    }
+}
+
+ class Calculator {
+
+    Map<String,Operation> operations;
+
+    public Calculator(){
+        this.operations = new HashMap<>();
+    }
+
+    public void addOperation(String name, Operation operation){
+        operations.put(name, operation);
+    }
+
+    public double calculate(String name, double num1, double num2){
+        if(!operations.containsKey(name)){
+            throw new IllegalArgumentException("La operación "+name+" no es válida");
+        }
+        return operations.get(name).operate(num1, num2);
+    }
+
+
+}