Question

我正在尝试使用用户输入（几乎只是我自己的）创建一个基本的计算程序，并处理非常小的计算。我似乎无法让计算返回。我正在这个文件中进行所有计算：

public class Drug {

private double goalForQuarter = 3716.0;
private double currentScripts;
private double currentDaysIntoQuarter;
private double scriptsNeededDaily100 = goalForQuarter / currentDaysIntoQuarter;
private double scriptsNeededDaily105 = scriptsNeededDaily100 * 1.05;
private double scriptPercentage = currentScripts / scriptsNeededDaily100;


public Drug () {

}

public Drug (double currentScripts) {
    this.currentScripts = currentScripts;
}

public Drug (double currentScripts, double currentDays){
    this.currentScripts = currentScripts;
    this.currentDaysIntoQuarter = currentDays;
}

public double calcDrug100 (){

    return this.scriptPercentage;
}


}

这个主程序在这里运行：

import java.util.Scanner;

public class Main {

    public static void main(String[] args){
        Scanner reader = new Scanner(System.in);

        System.out.print("Input number of days into Quarter: ");
        double days = Integer.parseInt(reader.nextLine());
        System.out.println("Input current number of Scripts: ");
        double scripts = Integer.parseInt(reader.nextLine());


        Drug drug1 = new Drug(scripts, days);

        System.out.println(drug1.calcDrug100());

    }

}

即使用户输入，我也会打印0.0。我玩过我的变量和方法，但似乎无法使它工作。任何帮助将不胜感激！

Answer 1

library(dplyr) cumsumLag1 <- function(x) cumsum(c(0, head(x, n = -1))) df %>% mutate(gameYear = as.POSIXlt(gameDate)$year + 1900) %>% arrange(gameDate) %>% group_by(gameYear) %>% mutate(priorAtBats = cumsumLag1(ab))是一个字段。它不会在scriptPercentage或currentScripts执行时自动更新。

scriptsNeededDaily100

Java新手，尝试制作基本程序但遇到问题

1 个答案: