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C# Querying With LINQ Now You're Querying Using Query Syntax

Posted by tafadzwa manzunzu
tafadzwa manzunzu
3,601 Points

help please

Create a public method in the NumberAnalysis class called NumbersGreaterThanFive that returns an IEnumerable<int>. Inside the method, use LINQ query syntax to return only the numbers in the _numbers field that are greater than 5.

NumberAnalysis.cs 
using System.Collections.Generic;
using System.Linq;

namespace Treehouse.CodeChallenges
{
    public class NumberAnalysis
    {
        private List<int> _numbers;
        public NumberAnalysis()
        {
            _numbers = new List<int> { 2, 4, 6, 8, 10 };
           IEnumerable<int>NumbersGreaterThanFive = from n in _numbers where n >5 select n;
        }
    }
}

3 Answers

Calin Bogdan
Calin Bogdan
14,921 Points

Howdy!

Instead of creating a method you created an Enumerable with that name in the constructor. You should create a method that returns that Enumerable.

Good luck!

SPOILER

 public IEnumerable<int> NumbersGreaterThanFive()
{
      return from n in _numbers where n > 5 select n;           
}
tafadzwa manzunzu
tafadzwa manzunzu
3,601 Points

thank you very much

Brendon Van der nest
Brendon Van der nest
12,826 Points
Brendon Van der nest
Brendon Van der nest
12,826 Points

Hello!

Here is how I did it.

using System.Collections.Generic;
using System.Linq;

namespace Treehouse.CodeChallenges
{
    public class NumberAnalysis
    {
        private List<int> _numbers;
        public NumberAnalysis()
        {
            _numbers = new List<int> { 2, 4, 6, 8, 10 };
        }

        public IEnumerable<int> NumbersGreaterThanFive()
        {
            return _numbers.Where(x => x > 5);
        }
    }
}
Allan Clark
Allan Clark
10,810 Points
Allan Clark
Allan Clark
10,810 Points

First, you are required to create a new method for this task. You currently have your linq query in the constructor method. Being that it gives you the name and return type the method signature should look like this:

public IEnumerable<int> NumbersGreaterThanFive()

Your query looks correct so I will leave the implementation up to you!

Happy coding!!!

tafadzwa manzunzu
tafadzwa manzunzu
3,601 Points

thank you