using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
namespace HelloWorld
{
public class Program
{
public static void Main(string[] args)
{
Console.Write("Welcome to Rock, Paper Scissors!");
string userAns, playAgain;
bool newGame = true;
int compNum, currScore = 0;
Console.ReadKey();
Console.Clear();
while (newGame == true)
{
Console.Write("Choose between [A] Rock, [B] Paper, or [C] Scissors. ");
userAns = Convert.ToString(Console.Read());
Console.Clear();
Random randNum = new Random();
compNum = randNum.Next(1, 4);
switch (compNum)
{
case 1:
if (userAns == "A")//Rock
{
Console.WriteLine("The computer chose Rock!");
Console.WriteLine("Draw!");
Console.WriteLine("Current score: " + currScore);
Console.ReadKey();
Console.Clear();
}
else if (userAns == "C")//Scissors
{
Console.WriteLine("The computer chose Rock!");
Console.WriteLine("Lose!");
currScore--;
Console.WriteLine("Current score: " + currScore);
Console.ReadKey();
Console.Clear();
}
else if (userAns == "B")
{
Console.WriteLine("The computer chose Rock!");
Console.WriteLine("Win!");
currScore++;
Console.WriteLine("Current score: " + currScore);
Console.ReadKey();
Console.Clear();
}
break;
case 2:
if (userAns == "B")//Paper
{
Console.WriteLine("The computer chose Paper!");
Console.WriteLine("Draw!");
Console.WriteLine("Current score: " + currScore);
Console.ReadKey();
Console.Clear();
}
else if (userAns == "A")//Rock
{
Console.WriteLine("The computer chose Paper!");
Console.WriteLine("Lose!");
currScore--;
Console.WriteLine("Current score: " + currScore);
Console.ReadKey();
Console.Clear();
}
else if (userAns == "C")//Scissors
{
Console.WriteLine("The computer chose Paper!");
Console.WriteLine("Win!");
currScore++;
Console.WriteLine("Current score: " + currScore);
Console.ReadKey();
Console.Clear();
}
break;
case 3:
if (userAns == "C")//Scissors
{
Console.WriteLine("The computer chose Scissors!");
Console.WriteLine("Draw!");
Console.WriteLine("Current score: " + currScore);
Console.ReadKey();
Console.Clear();
}
else if (userAns == "B")//Paper
{
Console.WriteLine("The computer chose Scissors!");
Console.WriteLine("Lose!");
currScore--;
Console.WriteLine("Current score: " + currScore);
Console.ReadKey();
Console.Clear();
}
else if (userAns == "A")//Rock
{
Console.WriteLine("The computer chose Scissors!");
Console.WriteLine("Win!");
currScore++;
Console.WriteLine("Current score: " + currScore);
Console.ReadKey();
Console.Clear();
}
break;
}
Console.Write("Would you like to play again? [A] Yes, [B] No. ");
playAgain = Console.ReadLine();
switch (playAgain)
{
case "A":
newGame = true;
break;
case "B":
newGame = false;
break;
default:
Console.WriteLine("'" + playAgain + "' was not one of the options.");
break;
}
Console.ReadKey();
Console.Clear();
}
}
}
} 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
}