Many companies use telephone numbers like 555GETFOOD so the

Many companies use telephone numbers like 555-GET-FOOD so the number is easier for their customers to remember. On a standard telephone, the alphabetic letters are mapped to numbers in the following fashion: A,B and C = 2 D,E and F = 3 G,H and I = 4 J,K and L = 5 M,N and O = 6 P,Q,R and S = 7 T,U and V = 8 W,X,Y, and Z = 9 Design a program that asks the user to enter a 10-character telephone number in the format XXX-XXX-XXXX. The program should display the telephone number with any alphabetic characters that appeared in the original translated to their numeric equivalent. For example, if the user enters 555-GET-FOOD the program should display 555-438-3662 Can I get JAVASCRIPT CODE for this, not java.

Solution

namespace TelephoneNumberTranslator
{
public partial class TelephoneNumberTranslator : Form
{
public TelephoneNumberTranslator()
{
InitializeComponent();
}


// The isValidNumber method accepts a string and returns true if it
// contains 10 digits, or false otherwise.
private bool IsValidNumber(string str)
{
const int VALID_LENGTH = 10; // Length of a valid string
bool valid = true; // Flag to indicate validity

// Check the string\'s length.
if (str.Length == VALID_LENGTH)
{
valid = true;
}
else
{
valid = false;
}
// Return the status
return valid;
}


// Creates Dictionary to hold values
private readonly Dictionary<int, char[]> keys =
new Dictionary<int, char[]>()
{
{1, new char[] {\'1\'}},
{2, new[] {\'a\', \'b\', \'c\', \'A\', \'B\', \'C\', \'2\'}},
{3, new[] {\'d\', \'D\', \'E\', \'e\', \'f\', \'F\', \'3\'}},
{4, new[] {\'g\', \'G\', \'H\', \'h\', \'I\', \'i\', \'4\'}},
{5, new[] {\'j\', \'J\', \'K\', \'k\', \'L\',\'l\', \'5\'}},
{6, new[] {\'m\', \'M\', \'N\', \'n\', \'O\',\'o\', \'6\'}},
{7, new[] {\'p\', \'P\', \'Q\', \'q\', \'R\', \'r\', \'S\',\'s\', \'7\'}},
{8, new[] {\'t\', \'T\', \'U\', \'u\', \'V\',\'v\', \'8\'}},
{9, new[] {\'w\', \'W\', \'X\', \'x\', \'Y\', \'y\', \'z\', \'9\'}},
{0, new[] {\' \', \'0\'}},
};

// Translates strings into numbers

public int[] Translate(string word)
{
return word.Select(c =>
keys.First(k => k.Value.Contains(c)).Key).ToArray();

}

private void numButton_Click(object sender, EventArgs e)
{


string input = numTextBox.Text;



if (IsValidNumber(input))
{


//TelephoneFormat(ref input);
MessageBox.Show(\" The number is \" + Translate(input)[0] + Translate(input)[1] + Translate(input)[2] + Translate(input)[3] + Translate(input)[4] + Translate(input)[5] + Translate(input)[6] + Translate(input)[7] + Translate(input)[8] + Translate(input)[9]);

}
else
{
MessageBox.Show(\"Invalid input\");
}
}
}
}