However, these books cause my girlfriend to call me a "geek. But I find myself tmly enjoying both books, like no other computer book I have touched or bought so far. Excellent writing style, very nice introduction of every new topic, and lots of wisdom in the books. Well done.
I must say that you r Thinking in Java is great! That is exactly the kind of documentation I was looking for. Especially the sections about good and poor software design using Java. You have helped me immensely in my progression to object oriented programming. If leaching makes you understand something, by now you must be pretty pleased with yourself.
Very easy to read, and I mean tlle code fragments as well. Ron Chan, Ph. YOUI' book is great. I have read lots of programmi ng books and your book still adds insights to programming in my mind. I recommend it to all my students. Note that the high bit represents the sign: 0 means positive and 1 means negative.
The output for the int portion is displayed above. The binary representation of the numbers is referred to as sig ned twos complemen t. You can assign to it the values true and false , and you can test it for truth or falsehood, but you cannot add booleans or perform any other type of operation on them.
In char, byte, and s hort, you ca n see the effect of promotion with the arithmetic operators. Each arithmetic operation on any of those types produces an int result, which must be explicitly cast back to the original type a narrowing conversion that might lose information to assign back to that type. With int values, however, yOll do not need to cast, because everything is already an int. Don't be lulled into thinking everything is safe, though. If you Thinking ill Java Bruce Eckel multiply two ints that are big enough, you'll overflow the result.
Java lets you overflow. J ava is good, but it's not that good. On the othe r hand, the lack of the cast certainly simplifies the code. YOll ca n see that, Aga in, yOll mllst be aware of the effect of a narrowing conversion when casting to a smaller type; otherwise, you might unknowi ngly lose information during the cast. Exercise 3 Write a method that takes hvo String argu ments and uses all the bool ean comparisons to compare the hYo Strings and print the results.
In main , call your method with some different String objects. If you found this chapter challenging, make sure you view the multimedia presentation Thinking in C, available at www. Operators Solutions to selected exercises can be found in the electronic document Tile Thinking in Java Annotated Solution Guide, available for sale from www. In J ava you make choices with execution control statements. Most procedural programming languages have some kind of control statements, and there is ofte n overlap among languages.
In J ava, the keywords include if-else, while , do-w hile , for , re turn , break, and a selection statement called s witch. Java does not, however, support the much-maligned goto which can still be the most expedient way to solve certain types of problems.
You can still do a gOlo-like j ump, but it is much more constrained th an a typical go lo. The expression returns tru e or false. Any of the relational operators you've seen in the previous chapte r can be used to produce a conditional statement.
If you want to use a non-boolean in a boo lea n test, such as if a , you must fi rst convert it to a boolean value by lIsing a conditional expression , such as if a! The else is optional , so you can use if in two for ms: if Boolean -expression statement or if Boolean-expression statement el se statement The Boolean-expression must produce a boolean result.
The statement is either a simple statement term inated by a semicolon, or a compound statement, which is a group of si mple statements enclosed in braces.
Whenever the word "statement" is used, it always implies that the statement ca n be simple or compound. S ; print result ; test S. Iteration Looping is con trolled by while, do-while and for , which are sometimes classified as iteration statements. Astatement repeats unti l the controll ing Boolean-expressioll evaluates to false. The form for a while loop is: while Boolean-expression statement Th e Boolean-expressioll is evaluated once at the beginning of the loop and again before each further iteration of the statement.
It includes 0, but not I. If you do not have a return statement in a method that returns void, there's an implicit return at th e end of that method , so it's not al ways necessary to include a return statement.
However, if your method states it will return anything oth er than void, you must ensure every code path will return a value. Normally, you'd use a bre ak like this only if you didn 't know when the terminating co ndition was going to occur. The continue statement causes execution to go back to the top of the iteration loop thus incrementing i whenever i is not evenly divisible by 9.
The best book ever written on Java. Your explanations are clear and direct. Through your fantastic book I have gained a tremendous amount of Java knowledge. The exercises are also fantastic and do an excellent job reinforcing the ideas explained throughout the chapters. I look forward to reading more books written by you. Thank you for the tremendous service that you are providing by writing such great books.
My code will be much better after reading Thinking in Java. I thank you and I'm sure any programmers who will have to maintain my code are also grateful to you. Although it also does a good job of teaching the what and how of the language, Thinking in Java is definitely the thinking person's choice in a Java book.
Robert S. From the fundamentals of Java syntax to its most advanced features, Thinking in Java is designed to teach, one simple step at a time. The author outlines his thoughts on why Java will make you a better programmer, without all the complexity. The book is better when he presents actual language features.
As such, this text will be most useful for the experienced developer. News, News, News - the one place to read news all over the world. Mobile App too. Book Description Thinking in Java has earned raves from programmers worldwide for its extraordinary clarity, careful organization, and small, direct programming examples.
About the Authors Bruce Eckel is a computer programmer, author and consultant. Eck Java Programming Wikibooks. All Categories. Recent Books.
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