1. A method of identifying a variable type during coding of a software program written in a programming language, said method implemented by use of a processor of a data processing system, said method comprising: said processor receiving a first typed line of a software program from a programmer, said first typed line including a variable name of a variable and a first variable type string adjacent to the variable name, said first variable type string identifying a first variable type of the variable; said processor displaying the first typed line in a window; said processor generating a first declaration statement for the software program, said generating the first declaration statement determining the first variable type from the first variable type string, said first declaration statement including a first standard character string of the programming language that specifies the first variable type of the variable, said first standard character string differing from the first variable type string; said processor inserting the first declaration statement in a reserved variable declaration area of the window, said reserved variable declaration area being displayed in the window and configured to record declaration statements of the software program; and said processor displaying a first modified line in the window, said first modified line replacing the first typed line in the window, said first modified line consisting of a portion of the first typed line that does not include the first variable type string.