 using System;

class Computer
{
    public string CPU { get; set; }
    public string GPU { get; set; }
    public int RAM { get; set; }
    public int Storage { get; set; }

    public override string ToString()
    {
        return $"Computer: CPU={CPU}, GPU={GPU}, RAM={RAM}GB, Storage={Storage}GB";
    }
}

interface IComputerBuilder
{
    void SetCPU(string cpu);
    void SetGPU(string gpu);
    void SetRAM(int ram);
    void SetStorage(int storage);
    Computer GetComputer();
}

class ComputerBuilder : IComputerBuilder
{
    private Computer computer = new Computer();

    public void SetCPU(string cpu)
    {
        computer.CPU = cpu;
    }

    public void SetGPU(string gpu)
    {
        computer.GPU = gpu;
    }

    public void SetRAM(int ram)
    {
        computer.RAM = ram;
    }

    public void SetStorage(int storage)
    {
        computer.Storage = storage;
    }

    public Computer GetComputer()
    {
        return computer;
    }
}

class GamingComputerBuilder : IComputerBuilder
{
    private Computer computer = new Computer();

    public void SetCPU(string cpu)
    {
        computer.CPU = cpu + "K";
    }

    public void SetGPU(string gpu)
    {
        computer.GPU = gpu + " Ti GAMING X 16GB";
    }

    public void SetRAM(int ram)
    {
        computer.RAM = ram + 32;
    }

    public void SetStorage(int storage)
    {
        computer.Storage = 1024 + storage;
    }

    public Computer GetComputer()
    {
        return computer;
    }
}

class Client
{
    private IComputerBuilder builder = new ComputerBuilder();

    public void BuildComputer()
    {
        builder.SetCPU("Intel i7 12700");
        builder.SetGPU("Nvidia RTX 3080");
        builder.SetRAM(32);
        builder.SetStorage(1024);
    }

    public void SetBuilder(IComputerBuilder newBuilder)
    {
        builder = newBuilder;
    }

    public IComputerBuilder GetBuilder()
    {
        return builder;
    }
}

class Program
{
    static void Main(string[] args)
    {
        Client client = new Client();

        // Используя обычный билдер
        client.BuildComputer();
        Computer computer = client.GetBuilder().GetComputer();
        Console.WriteLine(computer);

        // Используя "игровой" билдер
        GamingComputerBuilder gamingBuilder = new GamingComputerBuilder();
        client.SetBuilder(gamingBuilder);
        client.BuildComputer();
        Computer gamingComputer = client.GetBuilder().GetComputer();
        Console.WriteLine(gamingComputer);
    }
}

created 1 year ago

C Sharp Online Compiler

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.

Read inputs from stdin

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);
	}
     }
}

About C Sharp

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.

Syntax help

Data types

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

Variables

Syntax

datatype variable-name = value;

Loops

1. If-Else:

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.

2. Switch:

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;    
}

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement) {
  // code  
}

4. While:

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 
}

5. Do-While:

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);

Arrays

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.

Syntax

data-type[] array-name;

Methods

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.

Syntax

static void method-name() 
{
  // code to be executed
}