import java.io.*; public class Enzan { public static void main (String[] args) throws IOException { int a; String b; int c; String buf; String s = "n"; InputStreamReader isr = new InputStreamReader(System.in); BufferedReader br = new BufferedReader(isr); while( s.equals("n") ){ System.out.print("整数を入力してください: "); buf = br.readLine(); a = Integer.parseInt(buf); System.out.print("演算子(+|-|*|/)を入力してください: "); b = br.readLine(); System.out.print("整数を入力してください: "); buf = br.readLine(); c = Integer.parseInt(buf); if( b.equals("+") ){ System.out.println(a+" "+b+" "+c+" = "+ (a + c)); } else if( b.equals("-") ){ System.out.println(a+" "+b+" "+c+" = "+ (a - c)); } else if( b.equals("*") ){ System.out.println(a+" "+b+" "+c+" = "+ (a * c)); } else { System.out.println(a+" "+b+" "+c+" = "+ (a / c)+"..."+ (a % c)); } System.out.print("終了しますか?(y|n): "); s = br.readLine(); } System.out.print("終了しました。"); } }