内容发布更新时间 : 2024/12/22 11:22:26星期一 下面是文章的全部内容请认真阅读。

}

}

double s =(edge1 + edge2 + edge3) / 2;

double area = Math.pow(s * (s - edge1) * (s - edge2) * (s - edge3), 0.5);

System.out.println(\area of the tringle is \ + String.format(\,

area));

2.20（财务应用程序：计算利息）

import java.util.*;

public class test { }

}

double interst = balance * ( annual / 1200);

System.out.println(\interst is \ + String.format(\, interst)); public static void main(String[] args) {

// TODO Auto-generated method stub Scanner input = new Scanner(System.in);

System.out.print(\); double balance = input.nextDouble(); double annual = input.nextDouble();

2.21（财务应用：计算未来投资值）

import java.util.*;

public class test {

public static void main(String[] args) {

// TODO Auto-generated method stub Scanner input = new Scanner(System.in); System.out.print(\); double investment = input.nextDouble();

System.out.print(\); double interest = input.nextDouble();

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}

}

interest = interest / 100 / 12;

System.out.print(\); double years = input.nextDouble();

double value = investment * Math.pow((1 + interest), (years * 12));

System.out.println(\ + String.format(\,

value));

2.22（财务应用：货币单位）

import java.util.*;

public class test {

public static void main(String[] args) {

// TODO Auto-generated method stub Scanner input = new Scanner(System.in);

System.out.print(\); int amount = input.nextInt();

int remainingAmount = amount;

int numberOfOneDollars = remainingAmount / 100; remainingAmount = remainingAmount % 100;

int numbersOfQuarters = remainingAmount / 25; remainingAmount = remainingAmount % 25;

int numberOfDimes = remainingAmount / 10; remainingAmount = remainingAmount % 10;

int numberOfNickels = remainingAmount / 5; remainingAmount = remainingAmount % 5;

int numberOfPennies = remainingAmount;

System.out.println(\ + amount + \); System.out.println(\ + numberOfOneDollars + \); System.out.println(\ + numbersOfQuarters + \);

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}

}

System.out.println(\ + numberOfDimes + \); System.out.println(\ + numberOfNickels + \); System.out.println(\ + numberOfPennies + \);

2.23（驾驶费用）

import java.util.*;

public class test { }

public static void main(String[] args) { }

// TODO Auto-generated method stub Scanner input = new Scanner(System.in);

System.out.print(\); double drivingDistance = input.nextDouble();

System.out.print(\); double milesPerGallon = input.nextDouble();

System.out.print(\); double pricePerGallon = input.nextDouble();

double costOfDriving = drivingDistance / milesPerGallon *

System.out.print(\ + String.format(\,

pricePerGallon; costOfDriving));

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