i don't understand the output of this program at the start
why the two zero's? how do i change that?
class whileloop
{
publicstaticvoid main(String[] args)
{
int n = 0;int x = 0;
while (n !=10)
{
System.out.println(n);
n++;
while(x !=20)
{
System.out.println(x);
x++;
}
}
}
}
output
0 //the two zeros
0
1
2
3
4
etc
Let us go through this with line by line.
> int n = 0; int x = 0;
n=0
x=0
> while (n !=10)
n!=10 == 0!=10 == true
> System.out.println(n);
n=0
so output "0"
> n++;
n=1
x=0
> while(x !=20)
x!=20 == 0!=20 == true
> System.out.println(x);
x=0
so output "0"
> x++;
n=1
x=1
> while(x !=20)
x!=20 == 1!=20 == true
etc...
> i changed the x variable to 1 instead of 0 and now it
> works
> i'm still a little confused but i'll get over it
What are you confused about. You have two loops, one within the other.
Maybe it would help if you change the System.outs to:
System.out.println( "n=" + n );
System.out.println( "x=" + x );
