public class dollyen { public static void main(String[] args) throws IOException { BufferedReader keyln = new BufferedReader(new InputStreamReader(System.in));
double f, c;
System.out.print("温度摂氏(終了は0)> "); f = new Double(keyln.readLine()).doubleValue();
while (f > 0.0) { c = (f - 32) * 5 / 9; System.out.println("華氏(F)" + c + "度です。"); System.out.print("温度摂氏(終了は0)> "); f = new Double(keyln.readLine()).doubleValue(); } } }