Question

How to slice an array of ints in C#

Answer 1

using System;
using System.Linq;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

            var slice = arr.Take(3);

            foreach (int n in slice)
                Console.WriteLine(n);
        }
    }
}

/*
run:

1
2
3

*/

 

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Answer 2

using System;
using System.Linq;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

            var slice = arr.Skip(2).Take(3);

            foreach (int n in slice)
                Console.WriteLine(n);
        }
    }
}

/*
run:

3
4
5

*/

 

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Answer 3

using System;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

            var slice = new ArraySegment<int>(arr, 0, 3);

            foreach (int n in slice)
                Console.WriteLine(n);
        }
    }
}

/*
run:

1
2
3

*/

 

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Answer 4

using System;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

            var slice = new ArraySegment<int>(arr, 2, 3);

            foreach (int n in slice)
                Console.WriteLine(n);
        }
    }
}

/*
run:

3
4
5

*/

 

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Answer 5

using System;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

            var slice = Slice(arr, 0, 3);

            foreach (int n in slice)
                Console.WriteLine(n);
        }
        static int[] Slice(int[] source, int startindex, int length)
        {
            int[] dest = new int[length];

            Array.Copy(source, startindex, dest, 0, length);

            return dest;
        }
    }
}

/*
run:

1
2
3

*/

 

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Answer 6

using System;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

            var slice = Slice(arr, 2, 3);

            foreach (int n in slice)
                Console.WriteLine(n);
        }
        static int[] Slice(int[] source, int startindex, int length)
        {
            int[] dest = new int[length];

            Array.Copy(source, startindex, dest, 0, length);

            return dest;
        }
    }
}

/*
run:

3
4
5

*/

 

70+ SQL courses for beginners and professionals

Answer 7

using System;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

            var slice = Slice(arr, 0, 3);

            foreach (int n in slice)
                Console.WriteLine(n);
        }
        static int[] Slice(int[] source, int startindex, int length)
        {
            int[] dest = new int[length];

            Buffer.BlockCopy(source, startindex * sizeof(int), dest, 0, length * sizeof(int));

            return dest;
        }
    }
}

/*
run:

1
2
3

*/

 

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Answer 8

using System;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };

            var slice = Slice(arr, 2, 3);

            foreach (int n in slice)
                Console.WriteLine(n);
        }
        static int[] Slice(int[] source, int startindex, int length)
        {
            int[] dest = new int[length];

            Buffer.BlockCopy(source, startindex * sizeof(int), dest, 0, length * sizeof(int));

            return dest;
        }
    }
}

/*
run:

3
4
5

*/

 

70+ SQL courses for beginners and professionals