Helo guys , I am having trouble understanding increments ..what is the difference between z++ & ++z ?

Question

C++ increments /decrements

Answer 1

Let me give you an illustration.
z=0;
z++; // z is still 0
z; // now z is 1
++z; // z is 2.

Answer 2

Look this equation
imagine x=5
y=x++

above equation can be divided in to two parts
1. y=x
2. x=x+1

after executing these 2 still the value of y is 5.

if the eqaution was like this
y=++x

1. x=x+1
2. y=x

now the value of y is 6;

Hope You'll understand it

Answer 3

with z++, the variable z is used and then incremented while ++z means that z is incremented before it is used.

Answer 4

When ++ is before the variable, it as increased by 1 e.g x=4 cout<<++x; output is 5: and when the ++ is after the variable it stays the same at the moment e.g x=4 cout<<x++; output is 4