Java: pre-,postfix operator precedences

Question

I have two similar questions about operator precedences in Java.

First one:

int X = 10;
System.out.println(X++ * ++X * X++); //it pr         


        

Answer 1

For the second one ->

int a=1, b=2;             
a += b + a++;

Compiler will convert it to

 a = a + b + a++;

Then apply your logic and you will find the reason why a is 4.