Hai
According to 'Programmer's guide to
Java certification ' by Khalid A.Mughal (Page 42)
post-fix operator has high precedence than prefix operator and
pre-fix operator associativity is from right- left
But when I run the code given below
I found that both post-fix and pre-fix operator have same precedence and both have left to right associativity
{
int no ;
int ans;
no =1;
ans = ++no + 2*++no;
//associativity expected right-left
//prints 8 expected 7
System.out.println( " ++no + 2*++no = "+ans);
no =1;
ans = ++no*2 + ++no;
//associativity expected right-left
// prints 7 expected 8
System.out.println(" ++no*2 + ++no = "+ans );
no =1;
ans = ++no + no++ *2;
// precedence expected post-fix before prefix
//prints 6 expected 5
System.out.println(" ++no + no++ *2= "+ans );
no =1;
ans = ++no*2 + no++;
//check precedence expected post-fix before prefix
//prints 6 expected 7
System.out.println( " ++no*2 + no++ = "+ans );
}
'Java How to program' by Deital & Deital gives another view . It says (page 144) both have right to left associativity with post-fix having more precedence than prefix.
Can anyone tell me which one is right?
Thanks
Raji
