Weird java behavior with casts to primitive types

Question

This was probably asked somewhere but I couldn't find it. Could someone clarify why this code compiles and prints out 1?

long i = (byte) + (char) - (int) + (long) - 1; System.out.println(i); 

Answer 1

It's being parsed as this:

long i = (byte)( +(char)( -(int)( +(long)(-1) ) ) ); 

where all the + and - operators are unary + or -.

In which case, the 1 gets negated twice, so it prints out as a 1.