Programming Tutorial
Java Tutorial 5 – Arrays
In non-trivial computing problems you often need to store lists of items. Often these items can be specified sequentially and referred to by their position in the list. Sometimes this ordering is natural as in a list of the first ten people to arrive at a sale. The first person would be item one in the list, the second person to arrive would be item two, and so on. Other times the ordering doesn’t really mean anything such as in the ram configuration problem of the previous chapter where having a 4 MB SIMM in slot A and an 8 MB SIMM in slot B was effectively the same as an 8 MB SIMM in slot A and a 4 MB SIMM in slot B. However it’s still convenient to be able to assign each item a unique number and enumerate all the items in a list by counting out the numbers.
Java Tutorial 5 – Arrays
Programming Tutorial
Java Tutorial 4 – Methods
All the programs we’ve written to date have been quite simple, well under fifty lines of code each. As programs grow in size it begins to make sense to break them into parts. Each part can perform a particular calculation and possibly return a value. This is especially useful when the calculation needs to be repeated at several different places in the program. It also helps to define a clearer picture of the flow of the program, much like an outline shows the flow of a book.
Java Tutorial 4 – Methods
Programming Tutorial
Java Tutorial 3 – The For Statement and Operators
Java isn’t as redundant as perl, but there’s still almost always more than one way to write any given program. The following program produces identical output to the Fahrenheit to Celsius program in the preceding section. The main difference is the for loop instead of a while loop.
Java Tutorial 3 – The For Statement and Operators
Programming Tutorial
Java Tutorial 2 – Classes and Objects: A First Look
Classes are the single most important feature of Java. Everything in Java is either a class, a part of a class, or describes how a class behaves. Although classes will be covered in great detail in section four, they are so fundamental to an understanding of Java programs that a brief introduction is going to be given here.
Java Tutorial 2 – Classes and Objects: A First Look
