Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.Learn Challenge: Array Loops | Arrays
C# Basics
course content

Course Content

C# Basics

C# Basics

1. Getting Started
Why C#?C# SyntaxDisplaying OutputChallenge: Outputting a TriangleCommentsChallenge: CommentsVariablesIdentifiersChallenge: Variable DeclarationBasic Operators & ExpressionsChallenge: Operators
2. Dealing with Data Types
Integer Data TypesChallenge: Declaring Explicitly Typed VariablesFloating-Point and DoubleBooleansCharacterStringStrings ChallengeBasic String FormattingChallenge: String FormattingDeclaring ConstantsBasic Type CastingType Casting PracticeBasic Type ConversionBasic Coding Practice
3. Control Structures
Comparison OperatorsLogical OperatorsChallenge: OperatorsOrder of OperationsIf StatementChallenge: if Conditionelse KeywordChallenge: else Keywordif-else ChainChallenge: if, else-if, elseswitch StatementChallenge: Switch
4. Loops
for LoopChallenge: for Loopwhile Loopdo-while LoopChallenge: do-while Loopbreak Statementcontinue StatementChallenge: break and continue
5. Arrays
What are Arrays?Challenge: Array DeclarationIndexingChallenge: IndexingMulti-Dimensional ArraysChallenge: Multi-Dimensional ArraysLooping through ArraysChallenge: Array Loops
6. Methods
What are Methods?Creating and Calling MethodsChallenge: Methods CreationMethod ParametersChallenge: Method with ParametersMethod Return ValuesChallenge: Return ValuesLocal & Global ScopesChallenge: ScopesWhat's Next?

book
Challenge: Array Loops

Loop through the numbers array and if the value of the element is even, add 1 to it, and if it's odd, multiply it by two. The original array should be modified.

cs

main

copy

              
123456789101112131415161718192021222324252627

            
using System;

namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
			int[] numbers = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
			for(_____)
			{
    			if(_____)
    			{
    			    _____
    			} 
    			else
    			{
    			    _____
    			}
			}
			foreach(int i in numbers)
			{
			    Console.WriteLine(i);
			}
        }
    }
}
  1. All the numbers that give a remainder 0 when divided by 2 are called even numbers.
  2. Use the loop variable i to index and access the array elements.
cs

main

copy

              
1234567891011121314151617181920212223242526272829

            
using System;

namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int[] numbers = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };

            for(int i = 0; i < numbers.Length; i++)
            {
                if(numbers[i] % 2 == 0)
                {
                    numbers[i] += 1;
                }
                else
                {
                    numbers[i] *= 2;
                }
            }

            foreach(int i in numbers)
            {
                Console.WriteLine(i);
            }
        }
    }
}

Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 5. ChapterΒ 8
We're sorry to hear that something went wrong. What happened?
some-alt