Output of following question and why?

Question

int a=5 , b=10;
int(a>5)
if(b>5)
{
System.out.println(b);
}
else
System.out.println(a);

Answer 1

I got it. Thanks.

Answer 2

But in Java if condition block starts with " { "
so how can one be certain that the 1st if block contains other code.

Answer 3

compare with this
int a=5 , b=10;
if (a>5) {
if(b>5) { //nested if block
System.out.println(b);
}
} else
System.out.println(a); // output 5