import javax.swing.JOptionPane; public class Investment { public static void main(String[] args){ double value; String input = JOptionPane.showInputDialog(null,"请输入投资金额：","对话框",JOptionPane.QUESTION_MESSAGE); String input1 = JOptionPane.showInputDialog(null,"请输入年利率：","对话框",JOptionPane.QUESTION_MESSAGE); String input2 = JOptionPane.showInputDialog(null,"请输入投资年数：","对话框",JOptionPane.QUESTION_MESSAGE); double investmen = Double.parseDouble(input); double rate = Double.parseDouble(input1); double year = Double.parseDouble(input2); value = investmen * (Math.pow((1 + rate / 100),(year))); JOptionPane.showMessageDialog(null, value); } }
读取投资金额，年利率和年数，输出未来投资金额
未来投资金额=投资金额*（1+年利率）年数*12
使用方法Math.pow（a,b）来计算a的b次幂
转载于:https://www.cnblogs.com/Amoxicil/p/3895137.html
