Good Things about Java

I know Java gets a lot of flak in the industry, but lets face it; it does have some good things as well.
1) It's a Purely Object Oriented programming language
2) Fast and efficient; recent benchmarks have found that in certain areas Java outperforms C and C++
3) Built-in concurrency: Java provides a standard, reliable method of achieving concurrency, with a syntax built into the language. No more messing around with pthreads or <thread.h> **snicker**
4) Clean: unlike C and C++ where you need complex makefiles just to compile one program, Java enforces you to have your code and interface in one source file, drastically reducing the amount of fragmentation

>>4
I'm not sure what you mean here, but int = Integer and float = Floating-Point number. I suggest you read a programming manual. Basically, int and float are types of data, representing some discrete numerical value.