如何获得这些变量的均值?算术函数是什么?

huangapple go评论31阅读模式
英文:

How do I get the mean of these variables..... What is the arithmetic function?

问题

如何编写一个方法来计算一些数字的平均值

    public class MyCalculator {
    
        int input1 = 10;
        int input2 = 20;
        int input3 = 30;
        int input4 = 40;
        int input5 = 50;
    
        public float average() {
            // TODO: 编写Java代码来计算所有输入变量的平均值
               
             return 0;
        }
    }
英文:

How can I write a method to calculate the average of some numbers?

public class MyCalculator {

    int input1 = 10;
    int input2 = 20;
    int input3 = 30;
    int input4 = 40;
    int input5 = 50;

    public float average() {
        // TODO: write java code to calculate the average for all input variables
           
         return 0;
    }
}

答案1

得分: 0

以下是您要求的代码部分翻译:

你可以尝试类似这样的代码使用了新的 `Stream`

    import java.util.stream.*;
    
    class MyCalculator {
        public static double average(int[] input) {
            return IntStream.of(arr).average().getAsDouble();
        }
        public static void main(String[] args) {
            int[] input = {10, 20, 30, 40, 50};
            System.out.println(average(input));
        }
    }

输出结果

    30.0
英文:

You could go for something like this, which uses the new Stream library.

import java.util.stream.*;

class MyCalculator {
    public static double average(int[] input) {
        return IntStream.of(arr).average().getAsDouble();
    }
    public static void main(String[] args) {
        int[] input = {10, 20, 30, 40, 50};
        System.out.println(average(input));
    }
}

Output:

30.0

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  • 本文由 发表于 2020年9月12日 17:52:36
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