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Introduction to Programming

Introduction to Programming

By : Nick Samoylov
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Introduction to Programming

Introduction to Programming

By: Nick Samoylov

Overview of this book

Have you ever thought about making your computer do what you want it to do? Do you want to learn to program, but just don't know where to start? Instead of guiding you in the right direction, have other learning resources got you confused with over-explanations? Don't worry. Look no further. Introduction to Programming is here to help. Written by an industry expert who understands the challenges faced by those from a non-programming background, this book takes a gentle, hand-holding approach to introducing you to the world of programming. Beginning with an introduction to what programming is, you'll go on to learn about languages, their syntax, and development environments. With plenty of examples for you to code alongside reading, the book's practical approach will help you to grasp everything it has to offer. More importantly, you'll understand several aspects of application development. As a result, you'll have your very own application running by the end of the book. To help you comprehensively understand Java programming, there are exercises at the end of each chapter to keep things interesting and encourage you to add your own personal touch to the code and, ultimately, your application.
Table of Contents (21 chapters)
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Exercise – JUnit @Before and @After annotations

Read the JUnit user guide (https://junit.org/junit5/docs/current/user-guide) and the class SampleMathTest two new methods:

  • One that is executed only once before any test method is run
  • One that is executed only once after all the test methods were run

We did not talk about it, so you would need to do some research.

Answer

For JUnit 5, the annotations that can be used for this purpose are @BeforeAll and @AfterAll. Here is the demonstration code:

public class DemoTest {
@BeforeAll
static void beforeAll(){
System.out.println("beforeAll is executed");
}
@AfterAll
static void afterAll(){
System.out.println("afterAll is executed");
}
@Test
...
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