Dr Heinz M. Kabutz – Bitsandbytes
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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. Kabutz, Author of The Java Specialists Newsletter, Java Champion, JavaOne Rockstar Speaker, Computer Scientist, Teacher
In this course you will learn how to:
1. convert between different bases, such as octal, decimal, hexadecimal and binary.
2. do bitwise arithmetic with AND, OR, XOR and COMPLEMENT
3. shift bits left and right and what the difference is between unsigned and signed shift
4. print the internals of int and float.
5. negate a number using 2’s complement and why Math.abs(n) might be negative
6. understand rounding errors and how represent decimal numbers in binary.
7. write a great hashCode() method in Java with the least number of bucket collisions.
8. compare BitSet with EnumSet and discover practical use cases in the JDK.
Bits&Bytes has 3 1/2 hours of lectures by renowned computer expert Dr Heinz Kabutz. Read what some of his readers had 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.“
Are you ready to join our course?
Here are some more reasons
1. Ask questions in the course material and get a guaranteed response from the course author within three working days or your money back.
2. Simple no-nonsense 30-day money back guarantee, no questions asked.
3. Invite to private Facebook group with Heinz Kabutz and other students
<img class="large-img-rounded img-responsive" src="data:;base64,” alt=”Dr Heinz M. Kabutz” data-lazy-src=”https://www.filepicker.io/api/file/WA9EOsGoRhG687gr1TlS” />
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. Thanks to a supportive mother, he has now sold 5 copies.
Heinz’s Java Specialists’ newsletter is filled with amusing anecdotes of life on the Island of Crete. He is a popular speaker at all the best Java conferences around the world, and also at some of the worst. He teaches Java courses in classrooms around the world, where his prime objective is to make absolutely sure that none of his students fall asleep. He is not always successful.
1. Welcome: Course Origin, Expected Outcomes, Who it is for, Code Samples (4:32)
2. What are bits, bytes and nibbles? (2:54)
3. How many bytes does each primitive type use in Java? (6:10)
4. Converting between base 10 (decimal) and base 5 (9:55)
5. Converting between decimal and binary (2:59)
6. Converting between binary and octal (5:21)
7. Converting between binary and hexadecimal (5:35)
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)
12. Writing a BitPrinter (18:25)
13. Exploring bits in integer values and why ~0 == -1 (8:24)
14. Masking individual bits inside a number (14:03)
Frequently Asked Questions
Business online course
Information about business:
Business is the activity of making one’s living or making money by producing or buying and selling products (such as goods and services).
[need quotation to verify] Simply put, it is “any activity or enterprise entered into for profit.
It does not mean it is a company, a corporation, partnership, or have any such formal organization, but it can range from a street peddler to General Motors.”
Having a business name does not separate the business entity from the owner, which means that the owner of the business is responsible and liable for debts incurred by the business.
If the business acquires debts, the creditors can go after the owner’s personal possessions.
A business structure does not allow for corporate tax rates. The proprietor is personally taxed on all income from the business.
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