My first CS problem!

Computer Science Level 2

What is the output of the following code?

int t;

int s;

s=6;

t = (8 * s++) % 7;

System.out.print(""+t);

6 3 2 4 0 5 7 1

1 solution

Arulx Z
Dec 2, 2015

1	`t = (8 * s++) % 7;`

The suffix operator in s++ is evaluated after the expression. So the above expression is equivalent to

1 2	`t = (8 * s) % 7; s = s + 1;`

Hence the answer is

$\left( 8\cdot 6 \right) \%7=6$

Use prefix ++ (for eg ++s ) to evaluate the increment in the expression itself.

The % operator is the operator for modulo.

Moderator note:

In order to read code, you have to know the definition of the terms in the program. Otherwise, you will end up with a different answer. Similarly, when we enter in 1+2 / 3 into a calculation aid, we need to know if it evaluates it as $\frac{1+2}{3}$ or as $1+ \frac{2}{3}$ .

My first CS problem!

1 solution

Moderator note:

0 pending reports