JAVA——第二章2.20

import java.util.Scanner;
public class InterestIsCalculated {
    public static void main(String[] args) {
        System.out.println("Enter balance and interest rate:");
        Scanner input = new Scanner(System.in);
        double balance = input.nextDouble();
        double interest = input.nextDouble();
        double rate = balance*(interest/1200);
        System.out.println("The interest is "+rate);
    }
}