The elements below this line are things that Dr. Tiernan does not want you to use while you are learning to program. Later in your programming career you may choose to use them but not in Dr. Tiernan’s 1310 class.

1) Cannot use continue

In Dr. Tiernan’s 1310 class you will use specific control structures that define the conditions when code should be run or not. You will not ignore these control structures by using continue.

2) Cannot use break except between case statements in a switch structure

In Dr. Tiernan’s 1310 class, as with the continue statement, you will use specific control structures that define the conditions when code should be run or not. You will not ignore these control structures by using break. However, inside a switch statement you may use break to create the behavior of making a selection and then leaving the switch statement after that selection is complete.

3) Cannot use exit

In Dr. Tiernan’s 1310 class, you will write code that runs to completion and that handles errors by gracefully ending in the event of an error. Using the exit command is pretty much similar to crashing your program on purpose. In later classes you may have reasons to use the exit command for closing threads, etc. but in 1310 there is no reason to ever use exit.

4) Cannot use an intentional infinite loop such as while (true)

In Dr. Tiernan’s 1310 class, you will be writing programs that are intended to end by completing their sequence of commands. There will not be event based or interrupt based programming done in 1310 and there will not be continuously running programs written in 1310. Therefore, in 1310 there will be no need to use an intentional infinite loop.

Things not allowed in Dr. Tiernan’s 1310 class in Java programs

5) Cannot use throws

In 1310 you will explore handling specific errors using program logic and try - catch mechanisms. You will not write programs that throw exceptions to other places to handle.

6) Cannot use Exception, the general Exception for exception handling

In 1310 you will handle specific errors like FileNotFoundException and InputMismatchException. You will not lump all errors together by using Exception

In Java, there is a keyword named goto. It is a holdover from earlier languages. You cannot use it in Java and you should not use it in any structured programming languages.

7) Cannot use goto. Java does not implement goto but some other languages do like C.

Do Not Use It Ever. Period. Full stop.

In structured programming you should use the control structures in the language you are working with. In Java this means if, while, for, do-while, and switch. Using a goto means that you are writing sloppy code instead of using the control structure that matches the effect you need. Therefore, no goto in 1310 (or in any structured programming).