In the tradition of Effective Java”, Bloch and Gafter dive deep into the subtleties of the Java programming language and its core libraries. Illustrated with visually. Java Puzzlers. Traps, Pitfalls, and Corner Cases. Joshua Bloch. Neal Gafter. Upper Saddle River, NJ • Boston • Indianapolis • San Francisco. New York • Toronto. Java Puzzlers, a new book by Joshua Bloch, Google’s chief Java architect, and Neal Gafter, Google software engineer and Java technology evangelist, contains .
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It is a kind of book that you simply can’t stop reading. Finally, watch out for sneaky puzzlers. In summary, the float and double types have a special NaN value to represent a quantity that is not a number. Related Video Shorts 0 Upload your video. In summary, do not use compound assignment operators on short, byte, or java puzzlers joshua bloch variables.
Java is a complicated language and after reading this book you’ll think so too. Amazon Inspire Digital Educational Resources. Looks can be deceiving. Want to Read saving…. Describe the behavior of the program: The lesson is this the same as in Puzzle 7: This lively book reveals oddities of the Java programming language through entertaining java puzzlers joshua bloch thought-provoking programming puzzles.
But if you tried running it, you found that it does nothing of puzzleds sort: Besides solving the definite assignment problem, it may offer an opportunity to make the program more readable. He java puzzlers joshua bloch a Ph. puzzlegs
Java™ Puzzlers: Traps, Pitfalls, and Corner Cases
Oct 14, Turaaa rated it liked it Shelves: If you java puzzlers joshua bloch the program, though, you found that it never can say goodbye: The Joy of Hex Puzzle 5: If none of the values to be concatenated are strings, you have several choices: Instead of showing some code and asking what it does, they make you java puzzlers joshua bloch the code, albeit in small amounts.
The second print statement evaluates the conditional expression false? The first mistake is that the program uses the hideous boch idiom that depends on an array access throwing an exception.
Unfortunately, it prints 5. Generic type information is checked at puzxlers time but not at run time [JLS 4. You can initialize i with any floating-point arithmetic expression that evaluates to NaN; for example: Boch you need a floating-point value java puzzlers joshua bloch the body of a loop, take the int or long loop index and convert it puzzlres a float or double.
Swap Meat As its name implies, this program is supposed to swap the values of the variables x and y. The cast from char to int is also a widening primitive conversion, so the rule tells us that zero extension is performed rather than sign extension.
Unless you’ve written the bit fiddling parts of a JVM implementation, or are the kind of person who can remember minute details of the specification, you’ll most likely suffer. It does not exist. When you click on a Sponsored Product ad, you will be taken to an Amazon detail page where you can learn more about java puzzlers joshua bloch product and purchase it. Java puzzlers joshua bloch String constructor that takes a charset name in addition to a byte joshja is provided for this purpose.
As mentioned in the solution to Puzzle 5, mixedtype computation can be confusing.
Java Puzzlers: Traps, Pitfalls, and Corner Cases – Joshua Bloch, Neal Gafter – Google Books
This book is the ultimate guide to python puzzlesr for intermediates. When you must use java puzzlers joshua bloch nonconstant shift distance, make sure that your program can cope with this problematic case or does not encounter it. This forces all subsequent computations in the expression to be done with long arithmetic. Finally, note that there is a real lesson here.
The body of the loop appears to increment the minute counter minutes each java puzzlers joshua bloch the millisecond counter is a multiple of 60, which is the number of milliseconds in a minute. For the float type, the least magnitude beyond which adding 1 will have no effect isor 33,; for the double type, it isor approximately 1.
If initialized with constant expressions, both pig and dog would indeed refer to the same object, but dog is not initialized with a constant expression. If Java had not been modeled after C, its switch blocb would Puzzle Attempting to shift an int value 32 bits or a long value 64 bits just returns the value itself.
Time for a Jkshua Consider the following word problem: In case you java puzzlers joshua bloch curious, here is what the program looks like after the Unicode escapes are translated to jsva characters they represent: The lesson for language designers, yet again, is that silent loss of precision can be very confusing to programmers. That constructor, in turn, initializes its own internalInstance field by invoking the Reluctant constructor again and so on, java puzzlers joshua bloch infinitum.
java puzzlers joshua bloch Puzxlers you use floating-point, use double rather than float unless you are certain that float provides enough precision and you have a compelling performance need to use float. Anyone who believes they are a Java master should read this book, it is well written, captivating, informative and full of useful information!
Java™ Puzzlers: Traps, Pitfalls, and Corner Cases – PDF Free Download
Luckily, there is an easy way to fix the problem. It is clear that the program jshua true when it is fixed in this fashion: Traps, Pitfalls, and Corner Cases. Customers who viewed java puzzlers joshua bloch item also viewed.
Also, it is impossible to perform a left shift with a rightshift operator or vice-versa. They can take on both positive and negative values.