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C# program to find the negative double numbers from the list of objects using Linq

Here, we are going to learn how to find the negative double numbers from the list of objects using Linq in C#?
Submitted by Nidhi, on August 28, 2020

Here we will find the negative double numbers from the list of objects. Here we use OfType() method and Where() method to filter negative double values and print them on the console screen.

Program:

The source code to find the negative double numbers using Linq is given below. The given program is compiled and executed successfully on Microsoft Visual Studio.

//C# Program to find negative double numbers from 
//the list of objects using Linq.

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

class Demo
{
    static void Main(string[] args)
    {
        List<object> objectList = new List<object>()
        {
            101, "Amit", 102,"Joseph", -10.3, "RK Verma", 104, "Sanjay Shukla", 10.5F, "Pramod Pandey",-10.7
        };


        List<double> result = objectList.OfType<double>().Where(n=>n<0).ToList();

        foreach (double neg in result)
        {
            Console.WriteLine(neg + " ");
        } 
    }
}

Output:

-10.3
-10.7
Press any key to continue . . .

Explanation:

In the above program, we created a list of objects that contains different types of values then we find negative double numbers using OfType() and Where() method using the below code.

List<double> result = objectList.OfType<double>().Where(n=>n<0).ToList();

Then we printed filtered negative double numbers on the console screen.

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