add factory method intial code

Author: Mahboub99

Creational Desgin Patterns/Factory/.vscode/c_cpp_properties.json

@@ -0,0 +1,15 @@
+{
+ "configurations": [
+ {
+ "name": "Win32",
+ "includePath": ["${workspaceFolder}/**"],
+ "defines": ["_DEBUG", "UNICODE", "_UNICODE"],
+ "windowsSdkVersion": "10.0.18362.0",
+ "compilerPath": "C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.23.28105/bin/Hostx64/x64/cl.exe",
+ "cStandard": "c11",
+ "cppStandard": "c++17",
+ "intelliSenseMode": "msvc-x64"
+ }
+ ],
+ "version": 4
+}

Creational Desgin Patterns/Factory/.vscode/launch.json

@@ -0,0 +1,29 @@
+{
+ // Use IntelliSense to learn about possible attributes.
+ // Hover to view descriptions of existing attributes.
+ // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+ "version": "0.2.0",
+ "configurations": [
+ {
+ "name": "g++.exe - Build and debug active file",
+ "type": "cppdbg",
+ "request": "launch",
+ "program": "${fileDirname}\\${fileBasenameNoExtension}.exe",
+ "args": [],
+ "stopAtEntry": false,
+ "cwd": "${workspaceFolder}",
+ "environment": [],
+ "externalConsole": false,
+ "MIMode": "gdb",
+ "miDebuggerPath": "C:\\mingw-w64\\i686-8.1.0-posix-dwarf-rt_v6-rev0\\mingw32\\bin\\gdb.exe",
+ "setupCommands": [
+ {
+ "description": "Enable pretty-printing for gdb",
+ "text": "-enable-pretty-printing",
+ "ignoreFailures": true
+ }
+ ],
+ "preLaunchTask": "g++.exe build active file"
+ }
+ ]
+}

Creational Desgin Patterns/Factory/.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+ "files.associations": {
+ "istream": "cpp",
+ "xstring": "cpp",
+ "ostream": "cpp",
+ "iostream": "cpp"
+ }
+}

Creational Desgin Patterns/Factory/.vscode/tasks.json

@@ -0,0 +1,38 @@
+{
+ "version": "2.0.0",
+ "tasks": [
+ {
+ "type": "shell",
+ "label": "g++.exe build active file",
+ "command": "C:\\mingw-w64\\i686-8.1.0-posix-dwarf-rt_v6-rev0\\mingw32\\bin\\g++.exe",
+ "args": [
+ "-g",
+ "${file}",
+ "-o",
+ "${fileDirname}\\${fileBasenameNoExtension}.exe"
+ ],
+ "options": {
+ "cwd": "C:\\mingw-w64\\i686-8.1.0-posix-dwarf-rt_v6-rev0\\mingw32\\bin"
+ },
+ "problemMatcher": ["$gcc"],
+ "group": {
+ "kind": "build",
+ "isDefault": true
+ }
+ },
+ {
+ "type": "shell",
+ "label": "g++.exe build active file",
+ "command": "C:\\mingw-w64\\i686-8.1.0-posix-dwarf-rt_v6-rev0\\mingw32\\bin\\g++.exe",
+ "args": [
+ "-g",
+ "${file}",
+ "-o",
+ "${fileDirname}\\${fileBasenameNoExtension}.exe"
+ ],
+ "options": {
+ "cwd": "C:\\mingw-w64\\i686-8.1.0-posix-dwarf-rt_v6-rev0\\mingw32\\bin"
+ }
+ }
+ ]
+}

Creational Desgin Patterns/Factory/Factory.cpp

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+#include <iostream>
+
+using namespace std;
+
+enum shapeType
+{
+ Circle,
+ Rectangle,
+ Square
+};
+
+class shape
+{
+public:
+ virtual void draw() = 0;
+ static shape *create(shapeType type);
+};
+class circle : public shape
+{
+public:
+ void draw()
+ {
+ cout << "Circle" << endl;
+ }
+};
+class rectangle : public shape
+{
+public:
+ void draw()
+ {
+ cout << "Rectangle" << endl;
+ }
+};
+class square : public shape
+{
+public:
+ void draw()
+ {
+ cout << "Square" << endl;
+ }
+};
+shape *shape::create(shapeType type)
+{
+ if (type == Circle)
+ return new circle();
+ else if (type == Square)
+ return new square();
+ else if (type == Rectangle)
+ return new rectangle();
+}
+class Client
+{
+private:
+ shape *pShape = NULL;
+ shapeType type;
+
+public:
+ Client(shapeType type)
+ {
+ this->type = type;
+ pShape = shape::create(type);
+ }
+ ~Client()
+ {
+ if (pShape)
+ {
+ delete[] pShape;
+ pShape = NULL;
+ }
+ };
+ shape *getShap()
+ {
+ return pShape;
+ }
+};
+
+main()
+{
+ Client *pClient = new Client(Circle);
+ shape *pShape = pClient->getShap();
+
+ pShape->draw();
+}

Creational Desgin Patterns/Factory/Factory.exe

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+var Circle = function() {
+ this.draw = function() {
+ console.log("Circle");
+ };
+};
+var Rectangle = function() {
+ this.draw = function() {
+ console.log("Rectangle");
+ };
+};
+var Square = function() {
+ this.draw = function() {
+ console.log("Square");
+ };
+};
+function shapeFactory() {
+ this.create = function(shapeType) {
+ var shape = "";
+ if (shapeType === "Circle") shape = new Circle();
+ else if (shapeType === "Rectangle") shape = new Rectangle();
+ else if (shapeType === "Square") shape = new Square();
+ else console.log("not Supported yet");
+
+ return shape;
+ };
+}
+var factoty = new shapeFactory();
+
+var rectangle = factoty.create("Rectangle");
+var circle = factoty.create("Circle");
+var square = factoty.create("Square");
+
+rectangle.draw();
+circle.draw();
+square.draw();