# Java Program to Convert Miles To Kilometers And Kilometers To Miles

In the previous article, we have seen Java Program to Convert a Negative Number to a Positive Number

In this article we are going to see how we can create a convertor to convert miles to kilometers and kilometers to miles in java.

## Java Program to Convert Miles To Kilometers And Kilometers To Miles

Approach:

• Ask the user to pick the conversion mode i.e.from km to miles or vice versa.
• Use a switch case to pickthe conversion mode
• Multiply miles with 1.60934 to convert it into km or divide km by 1.60394 to get miles.
• Print the total result with both miles and km.

Program:

import java.util.*;
public class Main
{
public static void main(String[] args)
{
// Class to take input
Scanner scan = new Scanner(System.in);
// Asks the user to pick the conversion mode
System.out.print("Enter k to convert km to miles and m to convert miles to km :");
char ch = scan.nextLine().charAt(0);
double m = 0,k = 0;
// Seitch case to choose the conversion mode
switch(ch)
{
case 'm' :  System.out.println("Enter miles");
// Takes user input
m =scan.nextDouble();
k = 1.60934 * m;
break;

case 'k' :  System.out.println("Enter miles");
// Takes user input
k =scan.nextDouble();
m = k / 1.60934 ;
break;
}
// Displays the conversion result
System.out.println("In miles "+m+" and in km "+k);
}
}


Output:

Enter k to convert km to miles and m to convert miles to km :m
Enter miles
25
In miles 25.0 and in km 40.2335

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