Radio Shack TRS-80 Model 100 Basic Manual page 62

statement can be placed anywhere in the program, but it is traditional to place it either
at the beginning or the end of the program.
What would happen if a name is entered, which is not in our list?
Run the program and enter the name CARTER and a sales amount of 1000. The
program continues reading names in the DATA list until it runs out of data. The
program terminates and displays the error message:
?OD ERROR IN 20
indicating that an OUT OF DATA error occurred in line 20. The program tried to read
past the last name and rate in the list.
Additional names and rates can be added to line 70 or placed in another DATA
statement. The computer treats multiple DATA statements as one continuous list.
What you have learned:
In this lesson you have learned how a program can be made to BRANCH and
accomplish different tasks depending upon the value of a variable or expression. This
can be done by using the IFffHEN statement. The PRINTUSING statement was used
to format the output so that it was presented in a more reasonable fashion than would
be the case with just the PRINT statement. You saw how to use the STOP statement
to terminate execution under program control. You also learned that the READ/DATA
statements often provide a convenient method of inputing data to the program,
especially frequently referenced data like tables and lists.
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