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String Arrays

Discussion in 'C#' started by nagarjuna02, Feb 15, 2010.

  1. nagarjuna02

    nagarjuna02 New Member

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    hi
    I am in a process of designing relational calculator.
    If a user supplied a string like -3.33+44*456/2.2-3+4....
    I want to store it in string array as
    -3.33
    +44
    *
    456
    /
    2.2
    -3
    +4
    ......
    (that is *, /, +ve value, -ve value separately and in serial order into an string array)

    This is the code I wrote:
    string a = "-3.33+44*456/2.2-3"
    string[] ip = new string[25];
    int k = 0;


    for (int i = 0; i < a.Length; i++)
    {
    if (a.Substring(i, 1) == "+" || a.Substring(i, 1) == "-" || a.Substring(i, 1) == "*" || a.Substring(i, 1) == "/" || a.Substring(i, 1) == "^")
    {
    for (int j = i + 1; j < a.Length; j++)
    {
    if (a.Substring(j, 1) == "+" || a.Substring(j, 1) == "-" || a.Substring(j, 1) == "*" || a.Substring(j, 1) == "/" || a.Substring(j, 1) == "^")
    {
    if (a.Substring(i, 1) == "+" || a.Substring(i, 1) == "-")
    {
    ip[k] = a.Substring(i, j-i);
    k++;
    }
    else
    {
    ip[k] = a.Substring(i, 1);
    k++;
    ip[k] = a.Substring(i + 1, (j -i)-1);
    k++;
    }
    i = j;
    break;
    }
    }
    }

    }
    But its not working properly:
    Its storing only one element in the array.
    From last two days I am braking my head.
    Please help me.
    Thank You.
     

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