Question

write input statement to input l and b in a single statement?​

Answer 1

Answer:

Most useful programs have some flexibility built into them; that is, they can produce different results when pro- vided with different data. Commonly, the user of the program provides this data and thus has some control over the program’s behavior.

In True BASIC, the simplest way to obtain data from the user is the INPUT statement. The data provided by the user may consist of numeric or string values, and it may come from the keyboard or a file.

This chapter introduces the fundamentals of user input. It discusses the INPUT statement, the LINE INPUT statement, and the GET KEY statement for getting single keystrokes. For information on graphical input from the GET MOUSE and GET POINT statements, see Chapter 13 “Graphics.” For input from menus, buttons, check boxes, special edit fields, and dialog boxes, see Chapter 14 “Interface Elements.”

Basic Input

Chapter 2 on “Constants, Variables, and Expressions” illustrates the use of the LET statement to assign data values to variables. Although it is extremely useful, the LET statement is limited in that you must know the value you wish to assign when you are writing the program. To change the value, you must change the program.

Since it is impractical and undesirable for the user to change the source code before each run, True BASIC provides the INPUT statement to let the user assign values to variables during the run. The INPUT statement complements the PRINT statement. While the PRINT statement lets your program give information (the “answer”) to the user, the INPUT statement lets the user give information (the “question”) to your program.

The INPUT statement pauses the program, prints a question mark (?) at the current text cursor position, and then displays the text cursor (if it is turned on). A visible text cursor indicates that the user must enter data before the program will continue.