Java 计算器不工作的简单除法
我正在尝试制作一个计算器,可以计算多人之间的税收、小费和分摊,但最后一个功能不起作用,我也不知道为什么。我知道这可能是一个简单的修复,但我对Java还不熟悉,所以我就是找不到它。注意:这是我第一个实际的Java程序,请理解我可能犯的明显错误Java 计算器不工作的简单除法,java,swing,joptionpane,division,shopping,Java,Swing,Joptionpane,Division,Shopping,我正在尝试制作一个计算器,可以计算多人之间的税收、小费和分摊,但最后一个功能不起作用,我也不知道为什么。我知道这可能是一个简单的修复,但我对Java还不熟悉,所以我就是找不到它。注意:这是我第一个实际的Java程序,请理解我可能犯的明显错误 import java.util.Scanner; import javax.swing.JOptionPane; public class TaxFinder { static Scanner scan = new Scanner(Syst
import java.util.Scanner;
import javax.swing.JOptionPane;
public class TaxFinder {
static Scanner scan = new Scanner(System.in);
public static double priceD, taxD, totalTax, total, priceTipped, pricePP;
public static int peopleI;
public static String price, tax, people, ifTip, tip, ifSplit;
public static void main(String args[]){
ifTip = JOptionPane.showInputDialog("Was your purchase in a restaurant?");
if (ifTip.equalsIgnoreCase("yes")){
price = JOptionPane.showInputDialog("What was the cost of your bill ($)?");
priceD = Double.parseDouble(price);
tax = JOptionPane.showInputDialog("What is your tax rate (decimal)?");
taxD = Double.parseDouble(tax);
tip = JOptionPane.showInputDialog("Do you want to tip 5, 10, 15, or 20% ?");
if (tip.equals("5")){
priceTipped = priceD * .05;
}
else if (tip.equals("10")){
priceTipped = priceD * .1;
//System.out.println("Your price tipped is " + priceTipped);
}
else if (tip.equals("15")){
priceTipped = priceD * .15;
}
else if (tip.equals("20")){
priceTipped = priceD * .2;
}
totalTax = priceD * taxD;
total = priceD + totalTax + priceTipped;
}
else if (ifTip.equalsIgnoreCase("no")){
price = JOptionPane.showInputDialog("How much did your purchase cost ($)?");
priceD = Double.parseDouble(price);
tax = JOptionPane.showInputDialog("What is your tax rate (decimal)?");
taxD = Double.parseDouble(tax);
totalTax = priceD * taxD;
total = priceD + totalTax;
}
JOptionPane.showMessageDialog(null, "Your total is: $" + total, "Shopping Calculator", JOptionPane.PLAIN_MESSAGE);
ifSplit = JOptionPane.showInputDialog("Are you splitting the cost with other people?");
if (ifSplit.equalsIgnoreCase("yes")){
people = JOptionPane.showInputDialog("How many people including you?");
peopleI = Integer.parseInt(people);
pricePP = total / peopleI;
JOptionPane.showMessageDialog(null, "The total is $" + total + " per person", "Shopping Calculator", JOptionPane.PLAIN_MESSAGE);
JOptionPane.showMessageDialog(null, "Have a nice day!", "Shopping Calculator", JOptionPane.PLAIN_MESSAGE);
}
else if (ifSplit.equalsIgnoreCase("no")){
JOptionPane.showMessageDialog(null, "Have a nice day!", "Shopping Calculator", JOptionPane.PLAIN_MESSAGE);
}
}
}
只需在此处使用
pricePP
而不是total
变量:
JOptionPane.showMessageDialog(null, "The total is $" + total
+ " per person", "Shopping Calculator",
JOptionPane.PLAIN_MESSAGE);
因为您输出了另一个变量,该变量未被划分。在计算pricePP@MadProgrammer
total
是double
@ZouZou我不想投结果,只是划分的一方…@MadProgrammer在pricePP=total/peopleI中选择peopleI
有什么意义代码>?它已经是double/int
,因此不会执行整数除法。或者我没有明白你想说的意思,我明白了。就像我说的,我是一个非常新的程序员,所以我希望错误是显而易见的。不过谢谢你抽出时间,这帮了大忙