Question

3. Write a method buildString which takes a 2D array of characters (char), and returns a string that is built from all the characters in that array. For example, the following method call should return "hello!" buildString( new char[] [ 'h', 'e',

Answer 1

public string buildString( char arr[][] )

{

    string ans = "";

   

    int i, j;

   

    // traverse the row

    for( i = 0 ; i < arr.Length ; i++ )

    {

        // traverse the columns

        for( j = 0 ; j < arr[i].Length ; j++ )

            // convert character to string

            ans += arr[i][j].ToString();

    }

   

    return 0;

}