第2章：财务应用程序：计算利息 【对话框输出】

/** * 财务应用程序：计算利息。 * 读取收支余额和年百分率(yearRate)，显示两个版本下月利息。 * 利息额(interest) = 收支余额(balance) * (年利率 / 1200)。 * 下面是一个运行示例： * —————————————————————————————————————————————————————————————— * | Enter balance and interest rate (e.g., 3 for 3%): 1000 3.5 | * | The interest is 2.91667                                    | * —————————————————————————————————————————————————————————————— */package Test;import javax.swing.JOptionPane;public class T212InputDialog {public static void main(String[] args) {String balanceString = JOptionPane.showInputDialog("Enter balance and interest rate (e.g., 3 for 3%): ");double balance = Double.parseDouble(balanceString);String yearRateString = JOptionPane.showInputDialog("Enter balance and interest rate (e.g., 3 for 3%): ");double yearRate = Double.parseDouble(yearRateString);double interest = balance * (yearRate / 1200);String ouput = "The interest is " + interest;JOptionPane.showMessageDialog(null, ouput);}}