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Java SE 17 Playbook

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Like other developers, you face common challenges- working with strings, handling numbers, processing collections, reading from files, etc. This course will teach you how to solve these challenges using proven recipes quickly and efficiently.


1. Course Overview
  • 1. Course Overview

  • 2. Introducing Java Recipes
  • 1. Introduction
  • 2. Prerequisites
  • 3. Running Java Code
  • 4. Getting the Exercise Files
  • 5. Course Overview

  • 03. Transforming Strings
  • 01. Introduction
  • 02. Removing Whitespace
  • 03. Is This String Empty or Blank
  • 04. Transform Strings the New Way
  • 05. Comparing Strings the Right Way
  • 06. Iterating over Characters
  • 07. Check if a String Contains Specific Characters
  • 08. Finding and Replacing Matches
  • 09. Iterating over Many Lines
  • 10. Tokenizing a String
  • 11. Joining Strings
  • 12. Building Strings in a Loop
  • 13. Prefer Text Blocks
  • 14. Handling Text Localization
  • 15. Generating Random Strings
  • 16. Using Libraries
  • 17. Demo App - Extract and Sanitize Data
  • 18. Module Summary

  • 04. Working with Numbers
  • 01. Introduction
  • 02. Converting Strings to Numbers
  • 03. Checking if a String Is a Number
  • 04. Formatting Numbers
  • 05. Localizing and Compact Formatting Numbers
  • 06. Comparing Integers
  • 07. Doing Floating-point Arithmetic
  • 08. Handling Really Large Numbers
  • 09. Rounding with the Math Class
  • 10. Rounding with DecimalFormat and BigDecimal
  • 11. Generating Random Numbers and Values
  • 12. Demo App 1 - Converting a List of String Numbers
  • 13. Demo App 2 - Doing Arithmetic and Rounding Numbers
  • 14. Module Summary

  • 05. Solving Tasks with Dates and Times
  • 01. Introduction
  • 02. Quick Date and Time API Overview
  • 03. Getting the Difference between Two Dates
  • 04. Comparing Two Dates
  • 05. Getting the First or Last Day of a Period
  • 06. Handling Recurring Events
  • 07. Adding or Subtracting Dates
  • 08. Demo App 1 - Time Left This Year
  • 09. Formatting Dates
  • 10. Handling Multiple Formats
  • 11. Converting From and to the Old Date
  • 12. Getting The Current Time
  • 13. Printing All Zone IDs
  • 14. Getting the Start and End of the Day
  • 15. Calculating the Arrival Time
  • 16. Demo App 2 - Current Time in Other Time Zones
  • 17. Module Summary

  • 06. Working with Arrays and Collections
  • 01. Introduction
  • 02. Adding Elements to an Array
  • 03. Converting Between Array and List
  • 04. Create a List and Add Elements
  • 05. Check if the List Is Empty
  • 06. Remove Values From a List
  • 07. Remove Duplicates From a List
  • 08. Find Duplicates and Different Elements in Two Lists
  • 09. Replace Elements in a List
  • 10. Simple Sorting of a List
  • 11. Advanced Sorting of a List
  • 12. Map Overview
  • 13. Find Duplicate Values in a Map
  • 14. Remove or Replace Elements in a Map
  • 15. Check Map Equality
  • 16. Sorting a Map
  • 17. Merging Maps
  • 18. Module Summary

  • 07. Writing Succinct IO Code
  • 01. Introduction
  • 02. IO vs. NIO vs. NIO2
  • 03. Converting Between File and Path
  • 04. Using the Right Separator
  • 05. Determine the Base Directory
  • 06. Check Access to a File
  • 07. Reading Small Files
  • 08. Reading Big Files
  • 09. Writing to a File
  • 10. Reading From and Writing to Binary Files
  • 11. Copy a File
  • 12. Move or Rename a File
  • 13. Delete a File
  • 14. Iterate over Files
  • 15. Walking the File Tree
  • 16. Create a Directory
  • 17. Copy and Delete a Directory
  • 18. Demo App - Collect and Copy Log Files
  • 19. Further Study
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