UnitConverter

import java.util.Scanner;
public class UnitConverter{
public static void main (String args[]){
Scanner Keyboard=new Scanner(System.in);

System.out.print("Select a number");
int num=Keyboard.nextInt();

System.out.println("Select the units. 1=miles, 2=yards, 3=feet, 4=inches");
int unit=Keyboard.nextInt();

double inches;
double feet;
double yards;
double miles;

switch (unit){
  case 1:
		miles=num;
		yards=1760*num;
		feet=5280*num;	
		inches=63360;
	System.out.println("Miles: "+miles);
	System.out.println("Yards: "+yards);
	System.out.println("Feet: "+feet);
	System.out.println("Inches: "+inches);
break;

	case 2:
		miles=num/1760;
		yards=num;
		feet=3*num;	
		inches=36*num;
	System.out.println("Miles: "+miles);
	System.out.println("Yards: "+yards);
	System.out.println("Feet: "+feet);
	System.out.println("Inches: "+inches);
break;

	case 3:
		miles=num/5280;
		yards=num/3;
		feet=num;	
		inches=12*num;
	System.out.println("Miles: "+miles);
	System.out.println("Yards: "+yards);
	System.out.println("Feet: "+feet);
	System.out.println("Inches: "+inches);
break;

	case 4:
		miles=num/63360;
		yards=num/36;
		feet=num/12;	
		inches=num;
	System.out.println("Miles: "+miles);
	System.out.println("Yards: "+yards);
	System.out.println("Feet: "+feet);
	System.out.println("Inches: "+inches);
break;
}
}
}