Java Demystified - download pdf or read online

By Jim Keogh

ISBN-10: 0071470964

ISBN-13: 9780071470964

ISBN-10: 0072254548

ISBN-13: 9780072254549

I picked this ebook up after I bought dumped within the deep finish, wanting to switch Java code in a few NIST snapshot processing software program. the great - i'll keep on with the examples quite simply - i am a hundred pages in in a few hours, and i am easily studying the specifics of Java constitution that i have to commence enhancing code.
The undesirable - it seems like the e-book was once automatically spell-checked, yet no longer grammar-checked. there are numerous sentences, out and in of the code examples, the place I simply needed to shake my head. One instance was once flat out incorrect - on web page ninety two, the place the it says that an index is a bunch from 0 to "1 minus the utmost variety of components within the array". it will provide you with a non-positive quantity. now not a global ender, yet catching such a lot of of those on a primary skimming cross makes me a section leery of the way strong the remainder of the examples may be.

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What is a key difference between C++ and Java? 6. What is bytecode? 7. What is the Java Virtual Machine? 8. What is the purpose of the main() method in a Java application? 9. Must all Java classes have at least one attribute declared? 10. What happens after the last statement in the main() method executes? CHAPTER 2 Data Types and Variables Practically every Java program you write focuses on data and instructions. Data is information used by a computer to execute an instruction given to it by you, the programmer.

The sum of this addition calculation looks wrong because we’ve learned that 7 + 1 = 8 and not 10. However, this is only true if we use the decimal numbering system. However, the octal numbering system is used in this example, so the following sum is correct: 7 + 1 10 The hexadecimal numbering system has 16 digits. Hex, which is what programmers called the hexadecimal numbering system, is baffling at first glance because it CHAPTER 2 Data Types and Variables is difficult to imagine digits beyond 9.

What value is stored in memory when you assign a character to a char variable? 10. Do the float and double data types have the same precision? CHAPTER 3 Expressions and Statements If only you knew how to express yourself, you could have any computer eating out of your hands. Well, using a few choice words won’t let you feed a computer, but it will give you the capability to put nearly any computer through its paces to automate a process or solve a problem. In the previous chapter, you learned how to store information in a computer’s memory.

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Java Demystified by Jim Keogh

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