Incrementor logic

Question

I\'m trying to get deeper with post and pre incrementors but am a bit stuck with the following expression :

public static void main(String[] args) {
    int i         


        

Answer 1

Because of the highest precedence (...) will be evaluated first then ++ & -- and then remaining operators. Your expression is like

i = i += ( (++i) + (i+=2 + (--i)) - (++i) );

//i = i = i + ( (++i) + (i+=2 + (--i)) - (++i) );
//i = i = 0 + ( (++i) + (i+=2 + (--i)) - (++i) );
//i = i = 0 + ( (1) + (i+=2 + (--i)) - (++i) );
//i = i = 0 + ( (1) + (i+=2 + (0)) - (++i) );
//i = i = 0 + ( (1) + (2 + (0)) - (++i) );
//i = i = 0 + ( (1) + (2) - (++i) );
//i = i = 0 + ( (1) + (2) - (3) );
//i = i = 0 + ( 3 - 3 );
//i = i = 0 + ( 0 );
//i = 0

Please fully parenthesize your expression. You will understand evaluation order of expression.

For your EDIT 1

i = i+=( (++i) + (i+=32500 + (--i) ) - (++i) ); 

// 0 + ( (++i) + (i+=32500 + (--i) ) - (++i) ); // i = 0
// 0 + ( (1) + (i+=32500 + (--i) ) - (++i) );  // i = 1
// 0 + ( (1) + (i+=32500 + (0) ) - (++i) ); // i = 0
// 0 + ( (1) + (32500 + (0) ) - (++i) );  // i = 32500
// 0 + ( (1) + (32500) - (++i) ); // i = 32500
// 0 + ( (1) + (32500) - (32501) ); // i = 32501
// 0 + ( 32501 - 32501 ); // i = 32501
// 0 // i = 0