C# foreach loop program

Micheal John

11y1.5kVisual Basic .NET

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace ConsoleApplication2

{

class Program

{

static void Main(string[] args)

{

int[] ints = { 0, 10, 100, 1000, 1000000 };

string i =Console.ReadLine();

int num = int.Parse(i);

foreach (int arr in i)

{

Console.WriteLine(arr);

}

Using the for each loop i want to search an element in an array please help me. Thanks in advance.

7 Replies

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Manoj Bhoir11y ago
Accepted answer
Hi,

Try this :

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApplication2
{
class Program
{
static void Main(string[] args)
{
int[] ints = { 0, 10, 100, 1000, 1000000 };
string i =Console.ReadLine();
int num = int.Parse(i);
foreach (int arr in ints)
{
if (num == arr)
//element found do your code here
}
}
}
}

0
Micheal John11y ago
Thank you Manoj
0
Rajeesh Menoth11y ago
Hi,

static void Main(string[] args)
{
int[] ints = { 0, 10, 100, 1000, 1000000 };
foreach (int arr in ints) // change i to ints
{
Console.WriteLine(arr);
}
}
0
Pradeep Shet11y ago
int[] ints = { 0, 10, 100, 1000, 1000000 };
string i =Console.ReadLine();
int num = int.Parse(i);
foreach (int ob in ints)
{
if(ob == num)
Console.Write("Matched");
}

I would recommend the simplest way of using LINQ
using System.Linq;
bool matched = ints.Where(d => d.Equals(num)).Any();

Plz mark it as answered if it helped you.
0
Inathi Gqola11y ago
Hi Michael,

You do not need "int num = int.Parse(i);" and "string i =Console.ReadLine();" since you are not reading user input from the console.

//we declare our array here, just the way you did with you 'ints' array ;)
int[] intergers = { 0, 10, 100, 1000, 1000000 };
//we loop through our array 'intergers' starting from the left most value and give it a name 'i' (it could have been anything w,e,t,uu,mike, michael etc).
foreach (int i in intergers)
{
Console.Write ("{0} ", i) //we now get that value by its new name; 'i' in this case and print/display the value on the console.
}

Hope it helps!
0
Pankaj Kumar Choudhary11y ago
hello @Micheal your code is almost correct but contain one mistake that is

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApplication2
{
class Program
{
static void Main(string[] args)
{
int[] ints = { 0, 10, 100, 1000, 1000000 };
string i =Console.ReadLine();
int num = int.Parse(i);
foreach (int arr in i) /* Use ints instead of i */
{
Console.WriteLine(arr);
}
}
}
}

as
foreach (int arr in ints)
{
Console.WriteLine(arr);
}

0
Michal Habalcik11y ago
not sure I understand correctly, but your loop shoud be

foreach (int arr in ints)
{
Console.WriteLine(arr);
}

0