konversi suhu

/*
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 */
package konv.suhu;

import java.util.Scanner;
class hitungsuhu
{
    float celkerea (float a)
    {
        return a*4/5;
    }
    float fahkera (float a)
    {
        return (a-32)*4/9;
    }

}
/**
 *
 * @author lenovo
 */
public class KonvSuhu {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        int pil;
        Scanner input = new Scanner(System.in);
        hitungsuhu s;
        s=new hitungsuhu();

        do {
        System.out.println("Pilihan : ");
        System.out.println("1. celcius ke reamur \n2. fahrenheit ke reamur");
        System.out.println("masukkan pilihan = ");
        pil = input.nextInt();

        switch(pil){
            case 1: System.out.println("input celcius = ");
                    float a = input.nextFloat();
                    System.out.println(a + " celcius = " +s.celkerea(a) + " reamur");
                    break;
            case 2: System.out.println("input fahrenheit = ");
                    float b= input.nextFloat();
                    System.out.println(b + " fahrenheat = " +s.fahkera(b) + " reamur");
        }
        }while(pil<=2);
    }
}