By Cay S. Horstmann
This ebook introduces programmers to things at a gentle velocity. The syntax bins are revised to teach normal code examples instead of summary notation. This comprises not obligatory instance modules utilizing Alice and Greenfoot. The examples characteristic annotations with dos and don'ts besides go references to extra special reasons within the textual content. New tables express lots of general and cautionary examples. New programming and assessment difficulties also are offered that verify a wide assurance of subject matters. furthermore, Java 7 beneficial properties are integrated to supply programmers with the main up to date details.
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Extra resources for Big Java: Compatible with Java 5, 6 and 7
Names of classes usually start with an uppercase letter, names of methods and variables with a lowercase letter. If you misspell the name of a symbol (for example, ouch instead of out), the compiler will complain about an “undefined symbol”. That error message is usually a good clue that you made a spelling error. 8 Algorithms You will soon learn how to program calculations and decision making in Java. But before we look at the mechanics of implementing computations in the next chapter, let’s consider the planning process that precedes implementation.
Another important aspect of good craftsmanship is defensive programming: structuring programs and development processes in such a way that an error in one part of a program does not trigger a disastrous response. The error examples that you saw so far were not difficult to diagnose or fix, but as you learn more sophisticated programming techniques, there will also be much more room for error. It is an uncomfortable fact that locating all errors in a program is very difficult. Even if you can observe that a program exhibits faulty behavior, it may not at all be obvious what part of the program caused it and how you can fix it.
You will see how to compile and run your first Java program, and how to diagnose errors that may occur when a program is compiled or executed. Finally, you will learn how to formulate simple algorithms using pseudocode notation. 1 What Is Programming? 1 What Is Programming? A computer must be programmed to perform tasks. Different tasks require different programs. A computer program executes a sequence of very basic operations in rapid succession. You have probably used a computer for work or fun.
Big Java: Compatible with Java 5, 6 and 7 by Cay S. Horstmann