Difference between pre increment and post increment in for loop
Is there is any difference between following two for loops For(int i =0;i<5;i++) System.out.println(i); AND For(int i=0;i<5;++i) System.out.println(i); If any state with description
Muhammad Khairul Amirin Bin Yaacob both will have 01234 output In loop post - pre increment will not make any difference
1. for (int i=0;i<5;i++) output: 01234 2 for (int i=0;i<5;++i) output: 12345??
Gordie nice post. Thank you.
Muhammad Khairul Amirin Bin Yaacob That's wrong. The incremention isn't used directly and therefore it doesn't matter if you use ++i or i++. Pre- and postincrement only differs when you pass it to something while incrementing it. However: it's better to use pre increment, because post increment is more costly. Pre increment directly returns the incremented value, but post increments need to copy the value in a temporary variable, increment the original and then returns the previous made copy.
Question: how would your answer apply to overloaded increment operators for an object? In case the answer is no: would it be bad practice to even implement post increment in a costly class?
pre increment increase the number before and then proceed but post increment proceed the value before and then increase
What is input?
Decimal to Hex in C++