Include Test Code in Your Classes

It is important for developers to test code that they write to insurethat they are meeting the specifications for their application. Oftentest code is built in a separate program which loads and tests aparticular class. Instead, you can include test code directly insideyour class and place it in a “main” method.

When you run a Java program from the command line:

 java ApplicationStartingClass

you supply the name of the class that contains the start up code. Javaexecute a specific method in that class, the “main” method:

 public class ApplicationStartingClass{   public static void main( String[] args )   {      . . .   }}

You can use this feature of Java to embed test code inside each of theclasses that you write. If you are working developing the class Person,you can include a main method in the class, even though it will never becalled during normal use.

 public class Person{   . . .   public static void main( String[] args )   {      // include test code which exercises the class Person   }}

When you need to test your class, you simply run the class from thecommand line:

 java Person
Share the Post:
Share on facebook
Share on twitter
Share on linkedin


The Latest

microsoft careers

Top Careers at Microsoft

Microsoft has gained its position as one of the top companies in the world, and Microsoft careers are flourishing. This multinational company is efficiently developing popular software and computers with other consumer electronics. It is a dream come true for so many people to acquire a high paid, high-prestige job

your company's audio

4 Areas of Your Company Where Your Audio Really Matters

Your company probably relies on audio more than you realize. Whether you’re creating a spoken text message to a colleague or giving a speech, you want your audio to shine. Otherwise, you could cause avoidable friction points and potentially hurt your brand reputation. For example, let’s say you create a

chrome os developer mode

How to Turn on Chrome OS Developer Mode

Google’s Chrome OS is a popular operating system that is widely used on Chromebooks and other devices. While it is designed to be simple and user-friendly, there are times when users may want to access additional features and functionality. One way to do this is by turning on Chrome OS