#1,111 – Converting an Integer to a String in a Different Base

You can convert an integer-based value to a string using the ToString method on the integer.  This results in a string representing the integer as a base 10 number.

            int i = 42;
            // ToString() called implicitly
            Console.WriteLine(i);  // base 10

1111-001

You can also convert integer-based values to strings that represent the number in base 2 (binary), 8 (octal), or 16 (hexadecimal).  You use the Convert.ToString method, passing it the number to convert and the base.

            int i = 42;
            int i2 = 1964;
            int i3 = -128;

            Console.WriteLine("{0} dec, {1} hex, {2} oct, {3} bin",
                i,
                Convert.ToString(i, 16),
                Convert.ToString(i, 8),
                Convert.ToString(i, 2));

            Console.WriteLine("{0} dec, {1} hex, {2} oct, {3} bin",
                i2,
                Convert.ToString(i2, 16),
                Convert.ToString(i2, 8),
                Convert.ToString(i2, 2));

            Console.WriteLine("{0} dec, {1} hex, {2} oct, {3} bin",
                i3,
                Convert.ToString(i3, 16),
                Convert.ToString(i3, 8),
                Convert.ToString(i3, 2));

1111-002

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About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

2 Responses to #1,111 – Converting an Integer to a String in a Different Base

  1. Thorsten says:

    Hey Sean,

    shoudn’t it be i2 and i3 on the second and third Console.WriteLine call?

    Keep on the good work!

    Cheers

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