By Jeff Langr
This can be a great e-book on Java. i've got learn a number of books on Java some time past years, yet none of them teaches Java options like this one. I want I had acquired this publication 7 years again whilst i began constructing in Java. I want there have been newer books by way of this writer.
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Extra info for Agile Java(TM): Crafting Code with Test-Driven Development
You improve your system's design, since TDD drives you toward more decoupled designsdesigns where classes are not as heavily dependent upon other classes in the system. documentation of capability. Each unit test specifies the appropriate use of a production class. malleability. Having tests in place means that you can continually improve the quality of the code base without fear of breaking something that already works. This can result in lower maintenance costs. consistent pacing. Since each cycle in TDD is very short, feedback levels are high.
You will also want to test that you properly set the JAVA_HOME environment variable. Try executing (under Windows): "%JAVA_HOME%"\bin\java -version You should see the same version as before. Under Unix: "$JAVA_HOME/bin/java" -version The quotes handle the possibility that there are spaces in the path name. If you don't get a good result, view the value of the JAVA_HOME environment variable. Unix: echo $JAVA_HOME Windows: echo %JAVA_HOME% If you can't get past these steps, go no farther! Seek assistance (see the section Still Stuck?
A method that returns no information provides what is known as a void return type. Later (see Returning a Value from a Method in this lesson) you will learn how to return information from a method. The empty pair of parentheses () indicates that testCreate takes no arguments (also known as parameters)it needs no information passed to it in order to do its work. The name of the method, testCreate, suggests that this is a method to be used for testing. However, to Java, it is just another method name.
Agile Java(TM): Crafting Code with Test-Driven Development by Jeff Langr