The difference between n++ VS ++n in Java

Question

My Java teacher said it was better to use ++n instead of n++, I am not seeing the logic behind this. Does anyone know?

Answer 1

Interesting example that illustrates the difference:

public class Main {
    public static void main(String[] args) {
        for (int i=0; i<5; /*not incrementing here*/ ) 
            System.out.println(i++);
    }
}

output: 0 1 2 3 4

public class Main {
    public static void main(String[] args) {
        for (int i=0; i<5; /*not incrementing here*/ ) 
            System.out.println(++i);
    }
}

output: 1 2 3 4 5

Notice that neither for-loop performs the incrementation since it does not matter there.