将2个数组加在一起并返回它的总和

问题描述

我试图将2个数组加在一起并返回它的总和，但它不会运行。我想知道为什么？

I am trying to add 2 arrays together and return the sum of it, but it doesn't run. I wonder why?

public class MyProgram
{
    public static void main (String[] args)
    {
        new MyProgram().start();
    }

    public void start()
    {
        int[] ar1 = {3, 8, 4, 9, 5, 5, 23, 14};
        int[] ar2 = {33, 23, 41, 9, 17, 51, 23, 45};

        sumA(ar1, ar2);
    }

    private int[] sumA(int[] ar1, int[] ar2)
    {
        int[] sumArray = new int[0];

        for (int i = 0; i < ar1.length; i++)
        {
            sumArray[i] = ar1[i] + ar2[i];
        }
        return sumArray;
    }
}

推荐答案

int SumOfArray = 0;
for (i = array1.LowerBound; array1.UpperBound; i++)
{
    SumOfArray = SumOfArray + array1[i];
}

for (i = array2.LowerBound; array2.UpperBound; i++)
{
    SumOfArray = SumOfArray + array2[i];
}

Return SumOfArray;

但是更容易使用 []或 []，提供与Linq类似的功能。

But much, much easier is to use Coollection[^] or Lambda Expressions[^], which provide functionality similar to Linq.

int[] sumArray = new int[0];

没有在ar1找到属性，在这里看错字

There is no ength property in ar1, watch typo here

ar1.length

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