Question

我需要找到我在printf方法中出现的随机数的平均值，总和，最小值和最大值。最重要的部分都已完成，但我只需要将结果打印到底部的4个问题。

/ ********************************************** *********


该程序将生成一系列随机数，并生成一个表   *包含计算。   ************************************************** ********** /

import java.util.Scanner; 

public class GoslinMelissaUnit5 {

    public static void main(String[] args) {

        Scanner stdIn = new Scanner(System.in);

        final String HEADING_FMT_STR = "%5s%9s%13.8s%11s%11s%11s \n";   // headers
        final String DATA_FMT_STR = "%5d%7d%13.2f%14.2f%11.2f%11.2f \n";    // data received 

        String maxRandomNumStr;  // max random #
        int maxRandomNumInt;     // max random number after converted
        String roundsStr;        // rounds after converted
        int roundsInt;           // number of rounds

        int randomNumber;        // random number
        double fraction;        // fraction of random #
        double cubed;           // random number cubed
        double sqrt;            // square root of random #
        double log;             // log of random #



        System.out.print("Enter a maximum random number. (Example: 1-50) ");
        maxRandomNumStr = stdIn.next();

        maxRandomNumInt = Integer.parseInt(maxRandomNumStr);   // wrapper class convert string to integer 

        System.out.print("Enter the number of rounds (Example: 1-20) ");
        roundsStr = stdIn.next();

        roundsInt = Integer.parseInt(roundsStr);   // wrapper class convert string to integer

        System.out.printf("\n" + HEADING_FMT_STR,
                "Round", "Rand #", "Fraction", "x^3", "Sqrt", "Log");    // headers


        for (int rounds = 1; rounds <= roundsInt; rounds++)
        {

        randomNumber = (int) (Math.random() * maxRandomNumInt + 1);
        fraction = maxRandomNumInt / randomNumber;
        cubed = randomNumber * randomNumber * randomNumber;
        sqrt = (Math.sqrt(randomNumber));
        log = (Math.log(randomNumber));

        System.out.printf("\n" + DATA_FMT_STR,                          // data
                rounds, randomNumber, fraction, cubed, sqrt, log);

        } // end for loop


        System.out.println("The minimum generated number is: ");
        System.out.println("The maximum generated number is: ");
        System.out.println("The total of generated numbers is: ");
        System.out.println("The average of generated numbers is: ");

    }  // end main

}    // end class GoslinMelissaUnit5

Answer 1

你需要写一下，例如：

double minNumber = 0.0;

System.out.println（＆＃34;最小生成的数字是：＆＃34; + minNumber）;

您需要为所有变量

执行此操作

需要找到我在printf中生成的数字的平均值，总和，最小值和最大值

1 个答案: