Converts Fahrenheit to Celsius and vise versa. Wrote it to help my girl.

Converter.java

import java.util.*;

public class Convert 
{
    public static void main(String[] args)
    {
        Scanner inChoice = new Scanner(System.in), //input object for choice
                inF = new Scanner(System.in), //input object for F
                inC = new Scanner(System.in); //input object for C
        
        float f, c; //floats for f and c
        int choice; //integer representing the conversion choice
        
        /* Have the user choose to see if they want F to C or C to F */
        System.out.printf("-Choices-\n1 = F to C\n2 = C to F\nWhat's your choice? ");
        choice = inChoice.nextInt(); 
        
        /* switch the state of your program based on the user's choice */
        switch(choice)
        {
            case 1: //if the choice is 1
                System.out.println("What's F?");
                f = inF.nextFloat();
                c = (f - 32.0f)*5.0f/9.0f;
                System.out.printf("That's %.2f Celsius.\n", c);
                break;
                
            case 2: //if the choice is 2
                System.out.println("What's C?");
                c = inC.nextFloat();
                f = (c * 9.0f)/5.0f + 32;
                System.out.printf("That's %.2f Fahrenheit.\n", f);
                break;
                
            default: //no choice
                System.out.println("!Error: That choice doesn't exist!");
                break;
        }
    }
}