Why it’s 70 and not 69?

Question

Where is the mistake people, who can help?
If x = 34 and y = ++x, then y supposed to be 35 which means x+y=69, no?

When I run the code I receive an answer 70((

public class Program {

public static void main (String [ ] args)

{
int x = 34;
int y = ++x;
int z = x+y;

System.out.println(z);
}

}

Thanks,
Arthur

Answer 1

int x=34;
int y=++34 //y=35 as well as x=35
int z=35+35 = 70
//hope u got it ☺

Answer 2

https://www.sololearn.com/Discuss/407846/?ref=app
this will give you some more information about increment decrement

Answer 3

The statement:
int y = ++x;
increments the value of x by one and then assigns the incremented value to y.
It means that after this statement, both x and y contain the value 35.
That's why the output is 70, not 69.

If the statement was:
int y = x+1;
the output would have been the way you are thinking, because it does not increment the value of x so it remains 34 and y becomes 35.

Answer 4

For z = 69, write this:

int x = 34;
int y = x++;
z = x+y;

Now y is 34 and x is 35, because x gets incremented AFTER y copies its value.

Answer 5

the ++x increments x and then makes y=x
x is 35 after the ++x and not 34 anymore

Answer 6

Thank you guys