Clean Code with Java: Learn Simple Design, Refactoring & TDD
Learn to Write Clean Code with Java. Get Hands-on with Code Examples involving 4 principles of Simple Design, Refactoring & TDD.
- Step I : Understand Clarity of Code (Unit Tests)
- Step II: Focus on 4 Principles of Simple Design
- Step III: Get started with Refactoring
- Step IV : Understand TDD
Exercises
GildedRose
- Goal
- Understand Clarity of Code
- Give importance to Unit Testing
GildedRoseADefaultItemTest.javaGildedRoseBAgedBrieTest.javaGildedRoseCBackstagePassesTest.java- More details - Gilded Rose Exercises
4 Principles of Simple Design
- Refactor Code
StudentHelper.isGradeB()StudentHelper.getGrade()StudentHelper.willQualifyForQuiz()
- Write Code
TextHelper.swapLastTwoCharacters()TextHelper.truncateAInFirst2Positions()
- Refactor Unit Test
CustomerBOTest
Refactoring
CustomerBOImpl.getCustomerProductsSum(List<Product>)Movie.isValidRating()MenuAccess.setAuthorizationsInEachMenus(List<MenuItem>, Role[])UserLoginChecker.isUserAllowedToLogin(long, String, boolean, User, List)
Try on Your Own (With Solutions)
UserLoginCheckerTestMenuAccessTest
TDD
- More details - TDD Exercises
- Truncate A in first 2 positions of a String
- Check if first two and last two characters in the string are the same.
- Bowling Kata
Step By Step Details
Getting Started with Clarity in Code
- Clean Code with Simple Design, Refactoring and TDD - Getting Setup
- Step 00 - Clarity in Code - Problem 1 - Gilded Rose - Introduction
- Step 01 - Clarity in Code - Problem 1 - Gilded Rose - Refactoring Unit Test 1 - Default Item
- Step 02 - Clarity in Code - Problem 1 - Gilded Rose - Refactoring Unit Test 2 - Default Item
- Step 03 - Clarity in Code - Problem 1 - Gilded Rose - Refactoring Unit Test 3 - Aged Brie
- Step 04 - Clarity in Code - Problem 1 - Gilded Rose - Refactoring Unit Test 4 - Backstage Passes
- Step 05 - Clean Code - Attitude for the course
Getting Started with 4 Principles of Simple Design
- Step 01 - 4 Principles of Simple Design - An Introduction
- Step 02 - 4 Principles of Simple Design - Exercise - StudentHelper.isGradeB
- Step 03 - 4 Principles of Simple Design - Exercise - StudentHelper.getGrade
- Step 04 - 4 Principles of Simple Design - Exercise - StudentHelper.willQualifyForQuiz
- Step 06 - Most difficult challenge in programming - Naming
- Step 07 - 4 Principles of Simple Design - Exercise - TextHelper.swapLastTwoCharacters
- Step 07 - Should you have comments in code?
- Step 08 - 4 Principles of Simple Design - Exercise - TextHelper.truncateAInFirst2Positions
- Step 09 - 4 Principles of Simple Design - Exercise - CustomerBOTest
- Step 10 - 4 Principles of Simple Design - Exercise - CustomerBOTest
- Step 11 - Attitude towards Unit Testing
- Step 12 - Unit Testing Principles
Getting Started with Refactoring
- Step 01 - Introduction to Refactoring
- Step 02 - Refactoring - Exercise - CustomerBOImpl.getCustomerProductsSum
- Step 03 - Refactoring - Exercise - Movie.isValidRating
- Step 04 - Refactoring - Exercise - MenuAccess.setAuthorizationsInEachMenus
- Step 05 - Refactoring - Exercise - UserLoginChecker.isUserAllowedToLogin - 1
- Step 06 - Refactoring - Exercise - UserLoginChecker.isUserAllowedToLogin - 2
- Step 07 - My 10 Tips for Good Programmers
Getting Started with Test Driven Development
- Step 01 - Introduction to Test Driven Development - TDD
- Step 02 - Test Driven Development - TDD - Exercise - StringHelper.replaceAInFirst2Positions
- Step 03 - Test Driven Development - TDD - Exercise - StringHelper.replaceAInFirst2Positions
- Step 04 - Test Driven Development - TDD - Exercise - StringHelper.areFirstTwoAndLastTwoCharsTheSame
- Step 05 - Test Driven Development - TDD - Exercise - Bowling Kata - Introduction
- Step 06 - Test Driven Development - TDD - Exercise - Bowling Kata - Getting Started
- Step 07 - Test Driven Development - TDD - Exercise - Bowling Kata - Spare
- Step 08 - Test Driven Development - TDD - Exercise - Bowling Kata - Strike
- Step 09 - 3 Tips for Test Driven Development - TDD
Thank You
- Clean Code with Simple Design, Refactoring and TDD - Thank You