homework for 1.13 lesson

Author: SoniDhenuva

_notebooks/2025-10-12-homeworkFor1.13Grinders.ipynb

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+   "source": [
+    "---\n",
+    "layout: blogs\n",
+    "title: Object Creation and Storage (Instantiation)\n",
+    "permalink: /lesson/objcreation\n",
+    "authors: Nora, Soni, Avika, \n",
+    "---"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "3f76f2b8",
+   "metadata": {},
+   "source": [
+    "## Homework Hack #1 — Object Creation Practice\n",
+    "\n",
+    "**Goal** - Learn how to create and use objects in Java.\n",
+    "Instructions:\n",
+    "- Create a class called Car.\n",
+    "- Give it attributes like: String brand, int year, In main(), create two Car objects using the new keyword.\n",
+    "\n",
+    "Print their details using a method or toString() to understand how object instances work."
+   ]
+  },
+  {
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+   "id": "4fa4bd60",
+   "metadata": {
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+   "source": [
+    "// Homework Hack #1: Object Creation Practice\n",
+    "\n",
+    "public class ObjectCreation {\n",
+    "    public static void main(String[] args) {\n",
+    "        // 1. Create two Car objects using 'new'\n",
+    "        // Example: Car car1 = new Car(\"Tesla\", 2024);\n",
+    "\n",
+    "        // 2. Print each car's info\n",
+    "        // Example: System.out.println(car1);\n",
+    "    }\n",
+    "}\n",
+    "\n",
+    "class Car {\n",
+    "    // 1. Declare variables: brand, year\n",
+    "\n",
+    "    // 2. Create a constructor to set those variables\n",
+    "\n",
+    "    // 3. Add a method or toString() to display car info\n",
+    "}\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "5dfeb6ec",
+   "metadata": {},
+   "source": [
+    "## Homework Hack #2 — Heap vs Stack Storage Demo\n",
+    "\n",
+    "**Goal** - Understand where data is stored in memory — stack vs heap.\n",
+    "<br>\n",
+    "Instructions:\n",
+    "- Create a Book class with one variable: String title.\n",
+    "- In main(), create:\n",
+    "- A primitive variable (e.g. int pages = 300;)\n",
+    "- A Book object (e.g. Book b1 = new Book(\"Java Basics\");)\n",
+    "- Copy both into new variables (int pagesCopy = pages;, Book b2 = b1;)\n",
+    "<br>\n",
+    "Change the original values and print everything — watch what changes."
+   ]
+  },
+  {
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+   "source": [
+    "// Homework Hack #2: Heap vs Stack Storage Demo\n",
+    "\n",
+    "public class HeapVsStack {\n",
+    "    public static void main(String[] args) {\n",
+    "        // 1. Create a primitive variable (int pages)\n",
+    "        \n",
+    "        // 2. Create another primitive variable that copies it\n",
+    "        \n",
+    "        // 3. Create a Book object (Book b1 = new Book(\"Java Basics\");)\n",
+    "        \n",
+    "        // 4. Create another Book reference (Book b2 = b1;)\n",
+    "        \n",
+    "        // 5. Change the original primitive and the Book title\n",
+    "        \n",
+    "        // 6. Print both sets of values to compare behavior\n",
+    "    }\n",
+    "}\n",
+    "\n",
+    "class Book {\n",
+    "    // 1. Declare variable: String title\n",
+    "    \n",
+    "    // 2. Create a constructor to set the title\n",
+    "    \n",
+    "    // 3. Create a toString() to show the title\n",
+    "}\n"
+   ]
+  }
+ ],
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