quickly learn Java?

Indeed, Sikora offers a quick start to learning Java. He eshews an exhaustive enumeration of every core class in J2SE. Instead, he takes several high level topics and explains which common classes deal with these. A question arises. Can you indeed learn Java from so slender a book? Perhaps. Sikora teaches a core functionality. Made easier if you have already programmed in some other language.

For graphics, he leads you right into Swing. No time wasted on the earlier and inferior AWT classes.

For input/output, Java is more powerful than C or C++, but concomitantly harder to use. The coding is far more verbose, compared to a simple printf() or scanf() in C, for example. The minimal descriptions in Java given here are admirable in how he found the essence of enough to be useful.

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