Tidying up my code

[Valiantangel]

Hi, Can anyone go through my code to brush it up?I got the correct output,printed below, but i need some polishing of the below loop assignment.
1.Should i be using 2 while loops?
2.Regarding the output-How can i align the verticle columns and the output neatly.

public class MK{
	public static void main(String[] args){
		double ks;
		double ml;
		
		System.out.printf("\n%s%20s%20s%20s\n","Miles(ms)","Kilometers(ks)","Kilometers(km)","Miles(ml)");
		
		double km = 20,ms = 1;
		while( ms <= 10 ) {
		while( km <= 65 ) {
			ks =( 1.609*ms );
			ml =( km/1.609 );
			System.out.printf( "%1.0f%19.3f%15.0f%30.3f\n",ms,ks,km,ml );
			ms +=1;
			km +=5;
		}
		}
			
			
		
	}
}

OUTPUT

Miles(ms) Kilometers(ks) Kilometers(km)      Miles(ml)
1              1.609             20                 12.430
2              3.218             25                 15.538
3              4.827             30                 18.645
4              6.436             35                 21.753
5              8.045             40                 24.860
6              9.654             45                 27.968
7             11.263             50                 31.075
8             12.872             55                 34.183
9             14.481             60                 37.290
10             16.090             65                 40.398

[JamesCherrill]

1. If there are two loops just because there are two termination conditions then no, one is enough if you AND the two conditions together:
while (condition1 && condition2) { ...
2. printf formats have an optional width spec that sets the column width (by left-adding with blanks). Documentation is in the usual places.

[Valiantangel]

1. If there are two loops just because there are two termination conditions then no, one is enough if you AND the two conditions together:
while (condition1 && condition2) { ...
2. printf formats have an optional width spec that sets the column width (by left-adding with blanks). Documentation is in the usual places.

i dont understand ur answer 2.

[JamesCherrill]

Check out the format specs for printf. You can format the Miles column so its always the same width, so all the subsequent columns line up properly.

[Valiantangel]

Yep...if i knew i wont hav seeked help