I can't say I disagree with the author. Even with all its troubles, there's simply too much legacy Java code to abandon. Much like Cobol and Perl, there will always be a need for Java programmers to--at the very least--maintain existing code.
If you're a complete newb, learning Java will also introduce you to the C-like family of languages. (Although I say everyone should learn C first in order to appreciate memory management)
It depends on what you think is cheap. But Java developers that even know a little are doing fairly well right now. Java developers that know a lot can demand top dollar and there are tons more opportunities to earn that amount than with pretty much any technology.
Java will certainly not teach you anything else from C but how to put statements in braces and a couple of constructs with similar syntax. And if someone thinks that is C, he doesn't know C.
Although a Java translation of a C program still looks C-ish, I agree; idiomatic Java is very different from idiomatic C. (This is not surprising; Java is intended to be "C++ done right", and idiomatic C++ is rather different from idiomatic C.)
Java is part of the C family of languages, you can draw a pretty straight line between C++ and most of Java's features (or non-features, or lacks of features).
The basic grammar and syntax are pretty much the same, as are most of the fundamental data types and their behaviors, and many other things. There are obviously a lot of differences, but if you know one language it usually isn't hard to read well-written code in the other language.
> as are most of the fundamental data types and their behaviors
Don't ever tell that any C-novice coming from Java. Or you will have fun with interesting array constructs or functions returning pointers to variables created on the stack, etc.
I think he means C-style syntax rather than C family of languages. Java certainly is made to read like C and C++ more than anything else even if it is very different under the hood.
If you're a complete newb, learning Java will also introduce you to the C-like family of languages. (Although I say everyone should learn C first in order to appreciate memory management)