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I have two arrays -
int[] array1 = { 1, 2};
int[] array2 = { 6, 7};
I want to write them in text file delimited by tab.
Final Result -
1 6
2 7
Please suggest how to do this?
Assuming both arrays are of the same length:
File.WriteAllLines(filename,
Enumerable.Range(0, arr1.Length)
.Select(i => string.Format("{0}\t{1}", arr1[i], arr2[i]));
You could do something like this:
public void writeFile(int[] array){
using (streamWriter sw = new StreamWriter(filename, true){
for(int i = 0; i < array.Length; i++){
sw.WriteLine(array[i] + "\t");
}
}
}
Then you would just call the write method like this:
writeFile(array1);
writeFile(array2);
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of course I can use for() {}
but is there any function which can add all values in array?
if do you know, please tell me.
thank you.
int[] a = new int[] { 1, 2, 3, 4, 5 };
int[] b = new int[a.Length];
a.CopyTo(b, 0);
b.ToList().ForEach(c=>{
System.Console.WriteLine(c);
});
using System.Linq;
then...
var array = new double[] { 1.1, 2.2, 3.3 };
var sum = array.Sum(value=>value);
Console.WriteLine($"Sum is {sum}");
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i have a string like this S02E01 and now i want to run it through a loop like 20 times but at each iteration i want to increment the number after 'E' so that we have for example S02E01,S02E02,S02E03 ..S0210,...S02E20. Please help me.
Its really simple by using some string functions: Substring, PadLeft or ToString
string mystring = "S02E00";
var template = mystring.Substring(0, mystring.Length - 2);//template = "S02E"
for(int i = 0;i <= 20; i++)
{
var result = template + i.ToString("00");
Console.WriteLine(result);
}
you could use PadLeft too => var result = template + i.ToString().PadLeft(2, '0');
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I have this array and I want that every time the user inputs a number, the program immediately makes the sort. How can I do that? For example, if I input 6 and then 3, immediately takes the 3 to the first position. And then if I put 2, immediately take it to the first position and sort the others (2,3,6). Then if I put 1, takes it to the first position, sorting the others(1,2,3,6) and so on
int[] a = new int[5] ;
for (int i = 0; i < a.Length; i++)
{
a[i] = Convert.ToInt32(Console.ReadLine());
}
As #juharr suggest you can use System.Collections.Generic.SortedSet:
static void Main(string[] args)
{
var list = new SortedSet<int>();
int count = 5;
for ( int i = 0; i < count; i++ )
list.Add(Convert.ToInt32(Console.ReadLine()));
foreach (int item in list)
Console.WriteLine(item);
Console.ReadKey();
}
add the numbers to a list and call list.sort()
List<int> list = new List<int> { 6, 3 };
list.Sort();
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public static int[] ddDuration()
{
int[] ddarray = new int[] { 1, 2, 3, 4, 5 };
return ddarray;
}
How to make in c# to call my int array to who any page in my DropDownList
//and I am try to show in my DropDownList
//like that some thing
Duration dm = new Duration();
//dm.ddDuration;
//dropdduration.item.AddRang(dm.ddDuration);
If I got this right, you're trying to add an array of integers as items to a DropDownList.
var collection = ddDuration();
int len = collection.length;
for(int i=0; i<len; i++){
DropDownList1.Items.Insert(i, new ListItem(collection[i].toString(), ""));
}
Insert's first parameter is the position (index) in the Items collection and the second parameter takes a ListItem; of which constructor can be build upon its content (string in this case).
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What I try to do, is for example if I write five numbers 1,2,3,4,5 after this it should print 5,4,3,2,1
int[] numbers = new int[5];
for (int i = 0; i < numbers.Length ; i++)
{
Console.Write("");
numbers[i] = int.Parse(Console.ReadLine());
}
for (int i = 0; i < numbers.Length; i++)
{
}
If you need just to print them in a reverse order, but you want to keep them stored as you inserted them, change the second loop like this:
for (int i=numbers.Length-1; i >= 0; i--){
Console.WriteLine(numbers[i]);
}
You can print the array with a reverse loop as in the previous answer, or you can do that in a single line:
Console.WriteLine(string.Join(",", numbers.Reverse()));