using System;
namespace Shapes
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Character: ");
string symbol = (Console.ReadLine());
Console.WriteLine("Peak of Triangle: ");
int peak = Int32.Parse(Console.ReadLine());
int i = 0;
while (i <= peak) // spaces for triangle
{
Console.WriteLine(" ");
int z = 1;
while (z <= i) // Symbols for triangle
{
Console.Write(symbol);
z++;
}
i++;
}
Console.ReadLine();
}
}
}
Output: should start at one (*) then increase until the peak is met. Then should decrease back down to one of whatever input.
The output I am getting is not decreasing it stops at the peak input
You have to reverse the counter i to count back to 0.
Console.WriteLine("Character: ");
string symbol = (Console.ReadLine());
Console.WriteLine("Peak of Triangle: ");
int peak = Int32.Parse(Console.ReadLine()); // spaces for triangle
int i = 0;
int n = 1;
while (i != -1) // do it until i is negative
{
Console.WriteLine(" ");
int z = 1;
while (z <= i) // Symbols for triangle
{
Console.Write(symbol);
z++;
}
i += n; // increments when n = 1. decrements when n = -1
if (i >= peak) // reverse counter when it reaches peak
{
n = -1;
}
}
Related
I am a Beginner in C# and I was wondering what I got wrong with this code.
I want the user to input the amount of numbers
Then an array with that amount gets created
Then finally I want to display all the numbers in the array.
The Code:
using System;
using System.Threading;
using System.Collections.Generic;
namespace Console_Project_alpha
{
class Program
{
static void Main(string[] args)
{
Console.Write("Enter the amount of numbers: ");
int amount = Convert.ToInt32(Console.ReadLine());
int[] numbers = new int[amount];
string nth = "";
for( int i = 1; i <= amount ; i++)
{
if(i == 1)
{
nth = i + "st";
}
else if( i == 2)
{
nth = i + "nd";
}
else if( i == 3)
{
nth = i + "rd";
}else{
nth = i + "th";
}
Console.Write("\nEnter " + nth + " Number:");
int num = Convert.ToInt32(Console.ReadLine());
for(int j = 0; j <= numbers.Length; j++)
{
numbers[j] = num;
}
}
System.Console.WriteLine(numbers);
}
}
}
Any help is highly appreciated. Thanks in advance
In your code you all time overwriting the same value to all index in
array.
If you want to display values from array in console just iterate after array
Properly worked example based on your code:
class Program
{
static void Main(string[] args)
{
Console.Write("Enter the amount of numbers: ");
int amount = Convert.ToInt32(Console.ReadLine());
int[] numbers = new int[amount];
string nth = "";
int index = 0;
for (int i = 1; i <= amount; i++)
{
if (i == 1)
{
nth = i + "st";
}
else if (i == 2)
{
nth = i + "nd";
}
else if (i == 3)
{
nth = i + "rd";
}
else
{
nth = i + "th";
}
Console.Write("\nEnter " + nth + " Number:");
int num = Convert.ToInt32(Console.ReadLine());
numbers[index] = num;
index++;
}
for (int i = 0; i <= numbers.Length - 1; i++)
{
Console.WriteLine(numbers[i]);
}
Console.ReadLine();
}
}
I have an assignment to input random numbers from the keyboard that is different from 0 and random number k. I need to find the sum of the odd numbers + k(if k is also odd). Also when typing the numbers only when 0 is being typed the typing of numbers is interrupted. This is what I've got so far!
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
class Program
{
static void Main()
{
int k;
int min;
int max;
int odd = 0;
Console.WriteLine("Enter the value of k: ");
k = int.Parse(Console.ReadLine());
Console.WriteLine("Enter minimum integer: ");
min = int.Parse(Console.ReadLine());
Console.WriteLine("Enter maximum integer: ");
max = int.Parse(Console.ReadLine());
Console.Write("Odd: ");
for (int x = min; x <= max; x++)
{
if (x % 2 != 0)
{
Console.Write(x);
Console.Write(" + ");
odd += x;
}
}
Console.WriteLine();
Console.Write("Odd Numbers + K: ");
Console.WriteLine();
{
if (k % 2 !=0)
{
Console.Write(k);
Console.Write(" + ");
odd += k;
}
}
Console.Write("= ");
Console.Write(odd + "\n");
}
}
This code does what you need. It checks the bounds min and max. It finishes when zero is entered and it also keeps the total sum of the odd numbers.
Replace your static void Main() function with this one.
static void Main()
{
//int k;
int min;
int max;
int odd = 0;
Console.WriteLine("Enter minimum integer: ");
min = int.Parse(Console.ReadLine());
Console.WriteLine("Enter maximum integer: ");
max = int.Parse(Console.ReadLine());
Console.WriteLine("Enter your number: ");
bool userIsTyping = true;
while (userIsTyping)
{
Console.WriteLine("Enter another number: ");
int userNumber = int.Parse(Console.ReadLine());
if (userNumber == 0)
{
userIsTyping = false;
}
else if (userNumber > max)
{
Console.WriteLine("The number is out of bounds: greater than max.");
}
else if (userNumber < min)
{
Console.WriteLine("The number is out of bounds: less than min.");
}
else
{
if (userNumber % 2 != 0)
{
odd += userNumber;
Console.WriteLine("Current Total: " + odd.ToString());
}
else
{
Console.WriteLine("That is not an odd number.");
}
}
}
Console.WriteLine("The final result is: " + odd.ToString());
Console.ReadLine();
}
I have written out a program that declares an array of 10 integers, takes input from the user and puts them in the array and then accepts out parameters for the highest value, lowest value, sum of all values, and the average.
The main method displays all the stats. I don't know why, but I get the error
k does not exist in the current context - line 51 column 5
when I have previously declared it before that given line. Any help would be appreciated.
using System;
namespace IntegerStatistics
{
class Program
{
static void Main()
{
Console.Clear();
// Declaring variables
int[] userArray = FillArray();
int ArrayHighest = 0;
int ArrayLowest = 0;
int ArraySum = 0;
int ArrayAverage = 0;
Calculations(userArray, out ArrayHighest, out ArrayLowest, out ArraySum, out ArrayAverage);
Console.WriteLine("The lowest value in the array is {0}, while the highest is {1}.", ArrayLowest, ArrayHighest);
Console.WriteLine("The array has a sum of {0} and averages out to {1}.", ArraySum, ArrayAverage);
Console.ReadLine();
}
private static int[] FillArray()
{
int[] intArray = new int[10];
int numbersEntered = 0;
int intTemp = 0;
string strTemp = "";
for(int k = 0; k < 10; ++k)
{
Console.WriteLine("Enter a whole number or 999 to quit: ");
strTemp = Console.ReadLine();
while(!int.TryParse(strTemp, out intTemp))
{
Console.WriteLine("Input was not in the correct format");
Console.Write("Please enter a valid number: ");
strTemp = Console.ReadLine();
}
}
if(intTemp != 999)
{
intArray[k] = intTemp;
++numbersEntered;
}
else
{
k = 10;
}
Array.Resize(ref intArray, numbersEntered);
return intArray;
}
private static void Calculations(int[] intArray, out int Highest, out int Lowest, out int intSum, out int average)
{
intSum = 0;
Array.Sort(intArray);
Lowest = intArray[0];
Array.Reverse(intArray);
Highest = intArray[0];
Array.Reverse(intArray);
for(int k = 0; k < intArray.Length; ++k)
{
intSum += intArray[k];
}
average = intSum / intArray.Length;
}
}
}
The line I'm specifically having issues with is:
if (intTemp != 999)
{
intArray[k] = intTemp;
++numbersEntered;
}
else
{
k = 10;
}
I think you meant to place the if-else block inside the for-loop.
Since you want to check if the input number is 999 for each iteration, you could write your for-loop like this:
for(int k = 0; k < 10; ++k)
{
Console.WriteLine("Enter a whole number or 999 to quit: ");
strTemp = Console.ReadLine();
while(!int.TryParse(strTemp, out intTemp))
{
Console.WriteLine("Input was not in the correct format");
Console.Write("Please enter a valid number: ");
strTemp = Console.ReadLine();
}
if(intTemp != 999)
{
intArray[k] = intTemp;
++numbersEntered;
}
else
{
k = 10;
}
}
The loop variable k goes out of scope when the code leaves the for loop. So, you can use variable k only within the loop.
So, you need to move your if-else inside your for loop. Change your FillArray() method to
private static int[] FillArray()
{
int[] intArray = new int[10];
int numbersEntered = 0;
int intTemp = 0;
string strTemp = "";
for (int k = 0; k < 10; ++k)
{
Console.WriteLine("Enter a whole number or 999 to quit: ");
strTemp = Console.ReadLine();
while (!int.TryParse(strTemp, out intTemp))
{
Console.WriteLine("Input was not in the correct format");
Console.Write("Please enter a valid number: ");
strTemp = Console.ReadLine();
}
if (intTemp != 999)
{
intArray[k] = intTemp;
++numbersEntered;
}
else
break;
}
Array.Resize(ref intArray, numbersEntered);
return intArray;
}
Also, I'd suggest changing ArrayAverage to double type. e.g. 2, 3 => average 2.5
double ArrayAverage = 0; //average need not be whole number
Additionally, with Linq you can shorten your Calculations method as
//using System.Linq;
private static void Calculations(int[] intArray, out int Highest, out int Lowest, out int intSum, out double average)
{
Lowest = intArray.Min();
Highest = intArray.Max();
intSum = intArray.Sum();
average = intArray.Average();
}
I need to add binary number logic into this snippet. I just cannot wrap my head around how to implement binary numbers, I could just add 0s and 1s but that does not seem to be right
namespace Star_Pyramid
{
class Program
{
static void Main(string[] args)
{
int num;
Console.WriteLine("enter level");
num = Int32.Parse(Console.ReadLine());
int count = 1;
for (int lines = num; lines >= 1; lines--)
{
for (int spaces = lines - 1; spaces >= 1; spaces--)
{
Console.Write(" ");
}
for (int star = 1; star <= count; star++)
{
Console.Write("*");
Console.Write(" ");
}
count++;
Console.WriteLine();
}
Console.ReadLine();
}
}
}
you can use modulo (%)
c = star % 2; // will print first the '1'
c = (star + 1) % 2; // will print first the '0'
int num;
Console.WriteLine("enter level");
num = Int32.Parse(Console.ReadLine());
int count = 1;
int c = 0;
for (int lines = num; lines >= 1; lines--)
{
for (int spaces = lines - 1; spaces >= 1; spaces--)
{
Console.Write(" ");
}
for (int star = 1; star <= count; star++)
{
c = star % 2; //this will return 1 if the value of star is odd then 0 if even
Console.Write(c);
Console.Write(" ");
}
count++;
Console.WriteLine();
}
Console.ReadLine();
VIEW DEMO
In the Main method, in the for loop, if you copy/paste/run whole program in visual, you'll see that i'm trying to end the game. First "if", if the user hasn't guessed; then attempts decrements by one and keeps guessing. The second "else if", if the user has guessed the PCArray, than the game ends and message shows. those work.
But, the first "else if", if the user has exhausted his attempts to guess, and hasn't guessed PCArray, than it should say "oh no, you couldn't guess..." Why is this not working.
I just want it to work so that if:
- user hasn't guessed but still has attempts, attempts decrements by 1 until 0.
- user has guessed the correct number, it says congrats.
- attempts are 0 and user still hasn't guessed number, then show "oh no..." message.
class Program
{
static void Main(string[] args)
{
string name;
Console.WriteLine("**************Let's play Master-Mined**************");
Console.WriteLine();
Console.Write("Please enter your name: ");
name = Console.ReadLine();
Console.WriteLine("Welcome {0}. Have fun!! ", name);
int numberCount = 0;
int difficultyLevel = 0;
int digitNumber = GetRandomNumberCount(numberCount);
Console.Write(digitNumber + " it is. Let's play.");
Console.WriteLine();
int[] PCArray = GenerateRandomNumbers(digitNumber);
Console.WriteLine("A " + digitNumber + "-digit number has been chosen. Each possible digit may be the number 1, 2, 3 or 4.");
Console.WriteLine(" ******");
int difficulty = GetGameDifficulty(difficultyLevel);
int attempts = difficulty * digitNumber;
Console.WriteLine("Enter your guess ({0} guesses remaining)", attempts);
int remaining = attempts;
for (int i = 0; i < attempts; i++)
{
int[] userArray = GetUserGuess(digitNumber);
int hits = CountHits(PCArray, userArray, attempts);
if ((hits != PCArray.Length) && (attempts > 0))
{
remaining--;
Console.WriteLine("Enter your guess ({0} guesses remaining)", remaining);
}
else if ((attempts < 1))
{
Console.WriteLine("Oh no {0}! You couldn't guess the right number.", name);
Console.WriteLine("The correct number is: ");
for (int j = 0; j < PCArray.Length; j++)
{
Console.Write(PCArray[j] + " ");
}
Console.WriteLine("Would you like to play again (Y/N)? ");
}
else if (hits == PCArray.Length)
{
attempts = 0;
Console.WriteLine("You win {0}!", name);
Console.WriteLine("The correct number is:");
for (int j = 0; j < PCArray.Length; j++)
{
Console.Write(PCArray[j] + " ");
}
}
}
Console.ReadLine();
}
public static int GetRandomNumberCount(int numberCount)
{
int number = 0;
do
{
try
{
Console.Write("How many numbers would you like to use in playing the game (4-10)? ");
number = int.Parse(Console.ReadLine());
Console.WriteLine();
}
catch
{
Console.WriteLine("You must pick a number between 4 and 10. Choose again.");
Console.WriteLine();
}
} while ((number < 4) || (number > 10));
return number;
}
public static int GetGameDifficulty(int difficultyLevel)
{
int difficulty = 0;
do
{
try
{
Console.Write("Choose a difficulty level (1=hard, 2=medium, 3=easy): ");
difficulty = int.Parse(Console.ReadLine());
}
catch
{
Console.WriteLine(" Incorrect entry: Please re-enter.");
}
} while ((difficulty < 1) || (difficulty > 3));
return difficulty;
}
public static int[] GenerateRandomNumbers(int PCSize)
{
int eachNumber;
int[] randomNumber = new int[PCSize];
Random rnd = new Random();
for (int i = 0; i < randomNumber.Length; i++)
{
eachNumber = rnd.Next(1, 5);
randomNumber[i] = eachNumber;
Console.Write(eachNumber);
}
Console.WriteLine();
return randomNumber;
}
public static int[] GetUserGuess(int userSize)
{
int number = 0;
int[] userGuess = new int[userSize];
for (int i = 0; i < userGuess.Length; i++)
{
Console.Write("Digit {0}: ", (i + 1));
number = int.Parse(Console.ReadLine());
userGuess[i] = number;
//Console.Write(number);
}
Console.WriteLine();
Console.Write("Your guess: ");
for (int i = 0; i < userGuess.Length; i++)
{
Console.Write(userGuess[i] + " ");
}
Console.WriteLine();
return userGuess;
}
public static int CountHits(int[] PCArray, int[] userArray, int attempts)
{
int hit = 0;
int miss = 0;
int hits = 0;
for (int i = 0; i < PCArray.Length; i++)
{
if (PCArray[i] == userArray[i])
{
hit = hit + 1;
hits = hit;
}
else
{
miss = miss + 1;
}
}
Console.WriteLine("Results: {0} Hit(s), {1} Miss(es)", hit, miss);
return hits;
}
}
First of all, you should rethink your code, because the flow control is scattered throughout your code. For example, you don't need both attempts and remaining, they control the same thing.
Using two variables to control the same thing is what is causing your problem. The first two ifs in your for should be like this:
if (hits != PCArray.Length && remaining > 1)
and
else if (remaining == 1)
Note I removed the unnecessary parenthesis. With these changes, your application works, although the code is not too pretty.
A simple way of enhancing your code is to first check for the right result, and if it's not, then decrease the attempts variable and finally check for its value. That's why with your code as it is, the if should compare to 1 instead of 0.
The hits variable in your CountHits method is totally unnecessary; you should just return hit. Actually the miss variable can be avoided too, you can calculate it. Also remember to use the ++ operator.
But as I said first, the important thing is not to make it work but to organize your code properly. Later I will post my version.
My version, it's not the most beautiful thing in the world but I didn't want to change much of your code structure:
class Program
{
static void Main(string[] args)
{
Console.WriteLine("************** Let's play Master-Mind **************\n");
string name = GetPlayerName();
do
{
Play(name);
Console.Write("\nWould you like to play again (Y/N)? ");
}
while (Console.ReadLine().ToUpper() == "Y");
}
private static void Play(string name)
{
int numberCount = GetRandomNumberCount();
Console.Write(numberCount + " it is. Let's play.");
Console.WriteLine();
int[] PCArray = GenerateRandomNumbers(numberCount);
Console.WriteLine("A {0}-digit number has been chosen. Each possible digit may be the number 1 to 4.\n", numberCount);
int difficulty = GetGameDifficulty();
bool won = false;
for (int allowedAttempts = difficulty * numberCount; allowedAttempts > 0 && !won; allowedAttempts--)
{
Console.WriteLine("\nEnter your guess ({0} guesses remaining)", allowedAttempts);
int[] userArray = GetUserGuess(numberCount);
if (CountHits(PCArray, userArray) == numberCount)
won = true;
}
if (won)
Console.WriteLine("You win, {0}!", name);
else
Console.WriteLine("Oh no, {0}! You couldn't guess the right number.", name);
Console.Write("The correct number is: ");
for (int j = 0; j < numberCount; j++)
Console.Write(PCArray[j] + " ");
Console.WriteLine();
}
private static string GetPlayerName()
{
Console.Write("Please enter your name: ");
string name = Console.ReadLine();
Console.WriteLine("Welcome, {0}. Have fun!!\n", name);
return name;
}
public static int GetRandomNumberCount()
{
int number;
Console.Write("How many numbers would you like to use in playing the game (4-10)? ");
while (!int.TryParse(Console.ReadLine(), out number) || number < 4 || number > 10)
Console.WriteLine("You must pick a number between 4 and 10. Choose again.");
return number;
}
public static int GetGameDifficulty()
{
int difficulty = 0;
Console.Write("Choose a difficulty level (1=hard, 2=medium, 3=easy): ");
while (!int.TryParse(Console.ReadLine(), out difficulty) || difficulty < 1 || difficulty > 3)
Console.WriteLine("Incorrect entry: Please re-enter.");
return difficulty;
}
public static int[] GenerateRandomNumbers(int PCSize)
{
int eachNumber;
int[] randomNumber = new int[PCSize];
Random rnd = new Random();
Console.Write("PC number: ");
for (int i = 0; i < PCSize; i++)
{
eachNumber = rnd.Next(1, 5);
randomNumber[i] = eachNumber;
Console.Write(eachNumber);
}
Console.WriteLine();
return randomNumber;
}
public static int[] GetUserGuess(int userSize)
{
int number = 0;
int[] userGuess = new int[userSize];
for (int i = 0; i < userSize; i++)
{
Console.Write("Digit {0}: ", (i + 1));
while (!int.TryParse(Console.ReadLine(), out number) || number < 1 || number > 4)
Console.WriteLine("Invalid number!");
userGuess[i] = number;
}
Console.WriteLine();
Console.Write("Your guess: ");
for (int i = 0; i < userSize; i++)
{
Console.Write(userGuess[i] + " ");
}
Console.WriteLine();
return userGuess;
}
public static int CountHits(int[] PCArray, int[] userArray)
{
int hits = 0;
for (int i = 0; i < PCArray.Length; i++)
{
if (PCArray[i] == userArray[i])
hits++;
}
Console.WriteLine("Results: {0} Hit(s), {1} Miss(es)", hits, PCArray.Length - hits);
return hits;
}
}
It does a few more validations and it even actually lets you play again! ;)