必需：找到变量：值 [英] Required: Variable Found: Value

问题描述

public static int biggestArrayGap(int []a, int n)
{
int biggestGap = Math.abs(a[1]-a[0]);
    for (int i=1; i<n-1; i++)
{
    if (Math.abs(a[i]-a[i-1]) > biggestGap)    
        Math.abs(a[i]-a[i-1]) = biggestGap;
}
    return biggestGap;
}

由于某种原因，if语句中的第二行作为意外类型返回 - required：找到的变量：value。我试过==这显然不起作用。有什么见解？

For some reason, the second line in the if statement is returning as unexpected type– required: variable found: value. I tried == and that obviously didn't work. Any insight?

推荐答案

你在你的赋值语句中切换了操作数。

You switched the operands in your assign statement.

切换此

Math.abs(a[i]-a[i-1]) = biggestGap;

到此

biggestGap = Math.abs(a[i]-a[i-1]);

Math.abs（a [i] -a [i-1] ）只返回一个int值（没有变量引用或类似）。因此，您尝试为值分配新值。这是不可能的。您只需为变量分配新值。

Math.abs(a[i]-a[i-1]) returns just an int value (no variable reference or similar). So your trying to assign a new value to a value. Which is not possible. You can just assign a new value to a variable.

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