Day 3. The ABCs of Java
A Java program is made up of classes and objects, which in turn are made up of methods and variables. Methods are made up of statements and expressions, which are made up of operators.
At this point, you might be afraid that Java is like the Russian nesting dolls called matryoshka. Every one of those dolls seems to have a smaller doll inside it, which is as intricate and detailed as its larger companion.
This chapter clears away the big dolls to reveal the smallest elements of Java programming. You'll leave classes, objects, and methods alone for a day and examine the basic things you can do in a single line of Java code.
The following subjects are covered:
Java statements and expressions
Variables and data types
Constants ...
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