What You’ll Discover in Dr Heinz M. Kabutz Bits&Bytes
Bits&Bytes has 3 1/2 hours of lectures by renowned computer expert Dr Heinz Kabutz. Check out what his readers have to say about his work.
Dr Heinz M. Kabutz – Bits&Bytes
“I have been teaching Java to professional programmers for over 19 years. During this time, I am constantly amazed how many programmers have moved over from other disciplines such as psychology, architecture, chemistry, accounting and even the military. Whilst fine programmers, they often miss some of the more fundamental education that a computer science major would have covered. I am hoping that this Bits & Bytes Course will help fill this gap and will result in a better tomorrow with programmers that are more able to understand what makes our world work. In the end, it’s all just ones and zeros.” – Dr Heinz M. KabutzAuthor of The Java Specialists newsletter, Java Champion Speaker, JavaOne Rockstar Speaker and Computer Scientist.
This course will teach you how to:
1. Convert between different base types, such as binary, decimal, hexadecimal or octal.
2. Use bitwise arithmetic to perform AND, OR, XOR or COMPLEMENT
3. Shift bits left and right, and what the difference between signed and unsigned shifts is
4. Print the internals for int and flo.
5. negate a number with 2’s complement. Why Math.abs(n). might be negative
6. Understand rounding errors and how to represent binary decimal numbers.
7. Create a fantastic hashCode() Java method with the fewest bucket collisions
8. Find practical use cases for the JDK by comparing BitSet with EnumSet
Bits&Bytes has 3 1/2 hours of lectures by renowned computer expert Dr Heinz Kabutz. Check out what his readers have to say about his work.
Henri Tremblay “I’ve been coding in Java since 1998. And still, everytime I read the Java Specialists Newsletter, I learn something.”
Simon Ritter “Heinz gives well researched clear explanations and guidance on many tricky aspects of Java. A goldmine of useful information!”
John Green “I enjoyed this course even though I thought I knew everything I needed to know about bits and bytes. In fact, I thought that I probably didn’t need to use low level knowledge like this in Java – that I could leave it to C programmers 😉 Instead, I’ve found not just that it is still very much in use by JDK developers, even code added to Java 9, but that I should probably read more on floating point numbers before I can consider my knowledge to be complete. The practical tips on hashing and bit sets will be useful for programming in future.”
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Your instructor
Dr Heinz M. Kabutz
Dr Heinz M. Kabutz
Heinz Kabutz is the author of The Java Specialists’ Newsletter, a publication enjoyed by tens of thousands of Java experts in over 145 countries. His book “Dynamic Proxies (in German)” was #1 Bestseller on Amazon.de in Fachbücher für Informatik for about five minutes until Amazon fixed their algorithm. He has now sold five copies thanks to his supportive mother.
Heinz’s Java Specialists’ newsletter is filled with amusing anecdotes of life on the Island of Crete. He is a well-known speaker at both the best and the worst Java conferences. He teaches Java courses at classrooms around the globe. His primary objective is to make sure no one falls asleep. He’s not always successful.
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Course Curriculum
Chapter 1: Introduction to Number Bases
1. Welcome: Course Origin and Expected Outcomes. Who is it for? Code Samples (4.32).
2. What is the difference between bits, bytes, and nibbles? (2:54)
3. How many bytes does each Java primitive type use? (6:10)
4. Conversion from base 10 (decimal), to base 5 (9.55)
5. Converting decimal to binary (2:59).
6. Conversion between binary and octal (5.21)
7. Conversion between binary and decimal (5:35).
Chapter 2 – Bitwise Operators
8. Bitwise operators OR ‘|) and AND (&) (11:29)
9. Bitwise operator: XOR (), and COMPLEMENT() (6.06).
10. Shift left << (6:58)
11. Shift right, signed >> and unsigned >>> (11:15)
Chapter 3: Exploring Bits Inside Numbers
12. Writing a BitPrinter (18.25)
13. Exploring bits in integer numbers and why 0 ==-1 (8:24).
14. Masking parts of a number (14.03.)
Chapter 4 – 2’s Complement Numbers and Floating Point Nos
15. Math.abs(num), why it might be negative (9.02)
16. Investigating the working of floating point numbers (17:14).
Chapter 5 – Hashing
17. Evolution of hash() in Java HashMap (15:16)
18. HashMap (11.32): Minimizing bucket collisions
Chapter 6 – Practical Application of Bit Magic inside the JDK
19. java.util.BitSet (example usage ArrayList.removeIf in Java 8) (14:47)
20. EnumSet and bit masking (example use Spliterator) (10.43)
21. Find the midpoint between two ints with no overflow (from Spliterators, 5:07).
22. Modifiers for Reflection (7.27)
Chapter 7 – Conclusion
23. Conclusion (2.19)
Frequently Asked Question
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