Help! Nested For Loops (Java)

Question

Hi All,

I’m still finding nested loops a little confusing and I have been told that the following code prints 10 when compiled and run but I can’t figure out why! I’m getting 3 so obviously going wrong somewhere, is anyone able to explain this to me please?

class Test{
public static void main (String args []){
int c = 0;
A: for(int i = 0; i < 2; i++){
B: for(int j = 0; j < 2; j++){
C: for(int k = 0; k < 3; k++){
c++
if(k>j) break;
}
}
}
System.out.println(c);
}
}

Answer 1

Explanation:Firstly,

when i=0,j=0,k=0
c=1
Then j=0,k=1
c=2
then the first loop breaks.
Now j=1 and k=0
c=3
when j=1 and k=1
c=4
when j=1 and k=2
c=5 then it again breaks.
now i becomes 1 and again The same thing continues .
so count becomes 5*2=10