I am studying a book -with a course- that is using Java 5.0 (1.5) And my machine has a Java 7 version (1.7.0_65) Would this cause me any type of syntax headache or slow my pace by any means? Thanks in advance.
Java is always very careful about being backward-compatible. So if you use a newer version of the JDK to program, while writing code in an older syntax, that should be no problem in general.