Learn java the hard way review năm 2024
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Sorry, we just need to make sure you're not a robot. For best results, please make sure your browser is accepting cookies. Type the characters you see in this image:Try different image Conditions of Use Privacy Policy © 1996-2014, Amazon.com, Inc. or its affiliates Lambdas often exceed 4 lines of code. Doing more than supposed to. More responsibility — harder for your working memory. More lines —multiple-responsibility lambda. Do you need to change the variable from lambda? You can’t do that. Why? If lambda could access callsite variables multi-threading issues can occur. You can’t change the callsite variables from within lambda. Happy path in lambda works excellent. Rainy path, not so great. After a runtime crash you get this response: at [CLASS].lambda$null$2([CLASS].java:85) at [CLASS]$$Lambda$64/730559617.accept(Unknown Source) Lambda stack trace is painful to watch. Names are obfuscated, hard to track, and hard to debug. More lambdas — more cryptic stack trace. What’s a better way to debug lambda? Use intermediate results. An even better way is to use advanced IntelliJ debug tricks. Use “When we stop at a line that contains a lambda if we press F7 (step into) then IntelliJ will highlight what will be the snippet to debug. We can switch what chunk to debug with Tab and once we decided it then we click F7 again.” ¹ How to access callsite variables from lambda? You can only access final or effectively final variables. You need to wrap call site variables. Either Sorry, we just need to make sure you're not a robot. For best results, please make sure your browser is accepting cookies. Type the characters you see in this image:Try different image Conditions of Use Privacy Policy © 1996-2014, Amazon.com, Inc. or its affiliates Need help deciding on a java course? Or looking for more detail on Graham Mitchell's Learn Java the Hard Way? Feel free to chat below. Course Description "Learn Java the Hard Way" is a book with tutorial videos that teaches you how to code the same way a lot of us learned as children in the 1980s: typing in short, simple programs and getting them to work.The exercises and explanations in this book are distilled from my nearly two decades of experience teaching programming to ordinary students. Over 2,000 students have taken my classes and nine months later almost all of them knew how to code - at least a little!If you have ever bought another Java book for "beginners" and been lost by page 10, then my book is for you. Instructor Details Graham Mitchell
Graham taught Computer Science at Leander High School (near Austin, TX) for twenty years (fall 1997 - spring 2017). Most authors of "how to code" text books have never worked in the classroom or have only taught university students who are already majoring in Computer Science or who have quite a bit of prior experience. And although he has had a lot of exceptional students over the years, most of his students were regular kids with zero experience and no particular aptitude for programming. Graham taught them to code, and he can teach you. |
