using System;
using System.Collections.Generic;
namespace DoFactory.GangOfFour.Builder.RealWorld
{
public class MainApp
{
public static void Main()
{
VehicleBuilder builder;
Shop shop = new Shop();
builder = new ScooterBuilder();
shop.Construct(builder);
builder.Vehicle.Show();
builder = new CarBuilder();
shop.Construct(builder);
builder.Vehicle.Show();
builder = new MotorCycleBuilder();
shop.Construct(builder);
builder.Vehicle.Show();
Console.ReadKey();
}
}
class Shop
{
public void Construct(VehicleBuilder vehicleBuilder)
{
vehicleBuilder.BuildFrame();
vehicleBuilder.BuildEngine();
vehicleBuilder.BuildWheels();
vehicleBuilder.BuildDoors();
}
}
abstract class VehicleBuilder
{
protected Vehicle vehicle;
public Vehicle Vehicle
{
get { return vehicle; }
}
public abstract void BuildFrame();
public abstract void BuildEngine();
public abstract void BuildWheels();
public abstract void BuildDoors();
}
class MotorCycleBuilder : VehicleBuilder
{
public MotorCycleBuilder()
{
vehicle = new Vehicle("MotorCycle");
}
public override void BuildFrame()
{
vehicle["frame"] = "MotorCycle Frame";
}
public override void BuildEngine()
{
vehicle["engine"] = "500 cc";
}
public override void BuildWheels()
{
vehicle["wheels"] = "2";
}
public override void BuildDoors()
{
vehicle["doors"] = "0";
}
}
class CarBuilder : VehicleBuilder
{
public CarBuilder()
{
vehicle = new Vehicle("Car");
}
public override void BuildFrame()
{
vehicle["frame"] = "Car Frame";
}
public override void BuildEngine()
{
vehicle["engine"] = "2500 cc";
}
public override void BuildWheels()
{
vehicle["wheels"] = "4";
}
public override void BuildDoors()
{
vehicle["doors"] = "4";
}
}
class ScooterBuilder : VehicleBuilder
{
public ScooterBuilder()
{
vehicle = new Vehicle("Scooter");
}
public override void BuildFrame()
{
vehicle["frame"] = "Scooter Frame";
}
public override void BuildEngine()
{
vehicle["engine"] = "50 cc";
}
public override void BuildWheels()
{
vehicle["wheels"] = "2";
}
public override void BuildDoors()
{
vehicle["doors"] = "0";
}
}
class Vehicle
{
private string _vehicleType;
private Dictionary<string,string> _parts =
new Dictionary<string,string>();
public Vehicle(string vehicleType)
{
this._vehicleType = vehicleType;
}
public string this[string key]
{
get { return _parts[key]; }
set { _parts[key] = value; }
}
public void Show()
{
Console.WriteLine("\n---------------------------");
Console.WriteLine("Vehicle Type: {0}", _vehicleType);
Console.WriteLine(" Frame : {0}", _parts["frame"]);
Console.WriteLine(" Engine : {0}", _parts["engine"]);
Console.WriteLine(" #Wheels: {0}", _parts["wheels"]);
Console.WriteLine(" #Doors : {0}", _parts["doors"]);
}
}
} Write, Run & Share C# code online using OneCompiler's C# online compiler for free. It's one of the robust, feature-rich online compilers for C# language, running on the latest version 8.0. Getting started with the OneCompiler's C# compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C# and start coding.
OneCompiler's C# online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.
using System;
namespace Sample
{
class Test
{
public static void Main(string[] args)
{
string name;
name = Console.ReadLine();
Console.WriteLine("Hello {0} ", name);
}
}
}
C# is a general purpose object-oriented programming language by Microsoft. Though initially it was developed as part of .net but later it was approved by ECMA and ISO standards.
You can use C# to create variety of applications, like web, windows, mobile, console applications and much more using Visual studio.
| Data Type | Description | Range | size |
|---|---|---|---|
| int | To store integers | -2,147,483,648 to 2,147,483,647 | 4 bytes |
| double | to store large floating point numbers with decimals | can store 15 decimal digits | 8 bytes |
| float | to store floating point numbers with decimals | can store upto 7 decimal digits | 4 bytes |
| char | to store single characters | - | 2 bytes |
| string | to stores text | - | 2 bytes per character |
| bool | to stores either true or false | - | 1 bit |
datatype variable-name = value;
When ever you want to perform a set of operations based on a condition or set of few conditions IF-ELSE is used.
if(conditional-expression) {
// code
}
else {
// code
}
You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to If-Else-If ladder.
switch(conditional-expression) {
case value1:
// code
break; // optional
case value2:
// code
break; // optional
...
default:
// code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition.
for(Initialization; Condition; Increment/decrement) {
// code
}
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while(condition) {
// code
}
Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (condition);
Array is a collection of similar data which is stored in continuous memory addresses. Array values can be fetched using index. Index starts from 0 to size-1.
data-type[] array-name;
Method is a set of statements which gets executed only when they are called. Call the method name in the main function to execute the method.
static void method-name()
{
// code to be executed
}