What's the difference between (a++) and (++a)?

Question

Unfortunately I didn't understand the difference between (a++) and (++a) while I was learning the java course..help me please.

Answer 1

a++ or a-- is postfix operation, meaning that the value of a will get changed after the evaluation of expression.

++a or --a is prefix operation, meaning that the value of a will get changed before the evaluation of expression.

lets assume this;

a = 4;

b = a++; // first b will be 4, and after this a will be 5

// now a value is 5
c = ++a; // first a will be 6, then 6 will be assigned to c

*From Denim Datta

Answer 2

https://www.sololearn.com/Discuss/407846/?ref=app