通过方法传递数组参数 [英] Passing an array parameter through a method

问题描述

public class sum
{
   public double getTotal(double[] doubleNumbers)
   {
       double sum = 0;
       for(int i = 0; i < doubleNumbers.length; i++)
       {
          sum = sum + doubleNumbers[i];
       }
       return sum;
   }
}

public class testAry 
{
   public static void main(String[] args) 
   {
       sum sumT = new sum();
       System.out.print(sumT.getTotal());                     
   }
}

getTotal方法需要采用双精度数组..
我该如何通过他们?我只是似乎无法正确理解语法. :doh:

The getTotal method needs to take an array of doubles..
how do i go about passing them? I just can''t seem to get the syntax right. :doh:

推荐答案

您可以执行以下操作:

方式1:

You can do something like this:

WAY 1:

double[] numbers = new double[2];
numbers[0] = 2.2;
numbers[1] = 1.1;

sum sumT = new sum();
sumT.getTotal(numbers);

方式2:

WAY 2:

sum sumT = new sum();
sumT.getTotal(new double[]{1.1,2.2,3.3});

谢谢，lata方法正是我想要的，我不确定如何传递参数.


谢谢.

Thanks, the lata method was what i was looking for, i wasn''t sure how to pass the argument.


thanks.

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