Error

Question

I have a problem with entering my answer.. I need to enter 2 digits, but I cannot :(
I can enter only 1 digit.
“x=x*x
Int x = 4
What is x?”

Answer 1

Can you give the link to that question?
If you're only allowed to enter 1 digit then, most probably, the answer should be of 1-digit only ^_^

Answer 2

ohh, I know, man... but 4*4=16 and its not a one digit..)
where:
java; “class and objects”; 9/14(if im right, “gigital and links type”); 2/4(question 1)
____________
something like that:

main{
int x = 4;
square(x);
sout(x);
}

public void square (int x){
x = x * x
}