Lab2 Done

README.md

@@ -1,3 +1,4 @@
+[![Review Assignment Due Date](https://classroom.github.com/assets/deadline-readme-button-22041afd0340ce965d47ae6ef1cefeee28c7c493a6346c4f15d667ab976d596c.svg)](https://classroom.github.com/a/4ISSpVK4)
 **Java reflection** 
 
 Ваша задача --- написать генератор экземпляров произвольных классов.

src/main/java/org/example/GenerateExample.java

@@ -1,17 +1,66 @@
 package org.example;
 
-
-import org.example.classes.Example;
+import org.example.classes.*;
 import org.example.generator.Generator;
 
 public class GenerateExample {
     public static void main(String[] args) {
-        var gen = new Generator();
+        Generator gen = new Generator();
+
+
         try {
-            Object generated = gen.generateValueOfType(Example.class);
-            System.out.println(generated);
+            System.out.println("1. Testing Cart generation:");
+            Cart cart = (Cart) gen.generateValueOfType(Cart.class);
+            System.out.println(cart);
+            System.out.println();
+
+            System.out.println("2. Testing Product generation:");
+            Product product = (Product) gen.generateValueOfType(Product.class);
+            System.out.println(product);
+            System.out.println();
+
+            System.out.println("3. Testing BinaryTreeNode generation:");
+            BinaryTreeNode treeNode = (BinaryTreeNode) gen.generateValueOfType(BinaryTreeNode.class);
+            System.out.println(treeNode);
+            System.out.println();
+
+            System.out.println("4. Testing Example generation:");
+            Example example = (Example) gen.generateValueOfType(Example.class);
+            System.out.println(example);
+            System.out.println();
+
+            System.out.println("5. Testing Rectangle generation:");
+            Rectangle rectangle = (Rectangle) gen.generateValueOfType(Rectangle.class);
+            System.out.println(rectangle);
+            System.out.println();
+
+            System.out.println("6. Testing Triangle generation:");
+            Triangle triangle = (Triangle) gen.generateValueOfType(Triangle.class);
+            System.out.println(triangle);
+            System.out.println();
+
+            System.out.println("7. Testing Shape generation (should pick implementation):");
+            Shape shape = (Shape) gen.generateValueOfType(Shape.class);
+            System.out.println(shape.getClass().getSimpleName() + ": " + shape);
+            System.out.println();
+
+            System.out.println("8. Generating multiple instances of each type:");
+
+            System.out.println("\nMultiple Products:");
+            for (int i = 0; i < 3; i++) {
+                Product p = (Product) gen.generateValueOfType(Product.class);
+                System.out.println("  " + p);
+            }
+
+            System.out.println("\nMultiple Examples:");
+            for (int i = 0; i < 3; i++) {
+                Example e = (Example) gen.generateValueOfType(Example.class);
+                System.out.println("  " + e);
+            }
+
         } catch (Throwable e) {
-            throw new RuntimeException(e);
+            System.err.println("Error during generation: " + e.getMessage());
+            e.printStackTrace();
         }
     }
 }

src/main/java/org/example/classes/BinaryTreeNode.java

@@ -1,5 +1,8 @@
 package org.example.classes;
 
+import org.example.generator.Generatable;
+
+@Generatable
 public class BinaryTreeNode {
     private Integer data;
     private BinaryTreeNode left;
@@ -30,4 +33,13 @@ public void setLeft(BinaryTreeNode left) {
     public void setRight(BinaryTreeNode right) {
         this.right = right;
     }
+
+    @Override
+    public String toString() {
+        return "BinaryTreeNode{" +
+                "data=" + data +
+                ", left=" + (left != null ? "TreeNode(" + left.data + ")" : "null") +
+                ", right=" + (right != null ? "TreeNode(" + right.data + ")" : "null") +
+                '}';
+    }
 }

src/main/java/org/example/classes/Cart.java

@@ -2,6 +2,9 @@
 
 import java.util.List;
 
+import org.example.generator.Generatable;
+
+@Generatable
 public class Cart {
     private List<Product> items;
 
@@ -18,4 +21,12 @@ public void setItems(List<Product> items) {
     }
 
     // Конструктор, методы добавления и удаления товаров, геттеры и другие методы
+
+    @Override
+    public String toString() {
+        return "Cart{" +
+                "itemsCount=" + (items != null ? items.size() : 0) +
+                ", items=" + items +
+                '}';
+    }
 }

src/main/java/org/example/classes/Example.java

@@ -1,5 +1,8 @@
 package org.example.classes;
 
+import org.example.generator.Generatable;
+
+@Generatable
 public class Example {
     int i;
 

src/main/java/org/example/classes/Product.java

@@ -1,5 +1,8 @@
 package org.example.classes;
 
+import org.example.generator.Generatable;
+
+@Generatable
 public class Product {
     private String name;
     private double price;
@@ -30,6 +33,14 @@ public void setPrice(double price) {
         this.price = price;
     }
 
+    @Override
+    public String toString() {
+        return "Product{" +
+                "name='" + name + '\'' +
+                ", price=" + String.format("%.2f", price) +
+                '}';
+    }
+
     @Override
     public int hashCode() {
         return super.hashCode();
@@ -40,9 +51,4 @@ public boolean equals(Object obj) {
         return super.equals(obj);
     }
 
-    @Override
-    public String toString() {
-        return super.toString();
-    }
-
 }

src/main/java/org/example/classes/Rectangle.java

@@ -1,5 +1,8 @@
 package org.example.classes;
 
+import org.example.generator.Generatable;
+
+@Generatable
 public class Rectangle implements Shape {
     private double length;
     private double width;
@@ -18,4 +21,14 @@ public double getArea() {
     public double getPerimeter() {
         return 2 * (length + width);
     }
+
+    @Override
+    public String toString() {
+        return "Rectangle{" +
+                "length=" + String.format("%.2f", length) +
+                ", width=" + String.format("%.2f", width) +
+                ", area=" + String.format("%.2f", getArea()) +
+                ", perimeter=" + String.format("%.2f", getPerimeter()) +
+                '}';
+    }
 }

src/main/java/org/example/classes/Shape.java

@@ -1,5 +1,8 @@
 package org.example.classes;
 
+import org.example.generator.Generatable;
+
+@Generatable
 public interface Shape {
     double getArea();
     double getPerimeter();

src/main/java/org/example/classes/Triangle.java

@@ -1,5 +1,8 @@
 package org.example.classes;
 
+import org.example.generator.Generatable;
+
+@Generatable
 public class Triangle implements Shape {
     private double sideA;
     private double sideB;
@@ -21,4 +24,15 @@ public double getArea() {
     public double getPerimeter() {
         return sideA + sideB + sideC;
     }
+
+    @Override
+    public String toString() {
+        return "Triangle{" +
+                "sides=[" + String.format("%.2f", sideA) +
+                ", " + String.format("%.2f", sideB) +
+                ", " + String.format("%.2f", sideC) + "]" +
+                ", area=" + String.format("%.2f", getArea()) +
+                ", perimeter=" + String.format("%.2f", getPerimeter()) +
+                '}';
+    }
 }

src/main/java/org/example/generator/Generatable.java

@@ -0,0 +1,11 @@
+package org.example.generator;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.TYPE)
+public @interface Generatable {
+}