java错误“.class预期”
我正在尝试调用一个计算java中平均值的方法。但是当我编译时，它总是输出 '.class' Expected 当它到达该行时： System.out.println("平均值：" + Average(double Value[]));
这是我的代码：
public class q2
{
public static void main(String[] args) throws IOException
{
new q2().InputValue();
}
public void InputValue() throws IOException
{
BufferedReader br = new BufferedReader(
new InputStreamReader(System.in));
double[] Value = new double[10];
for (int i = 0; i < 10; i++)
{
System.out.println("Please enter a value: ");
Value[i] = Double.parseDouble(br.readLine());
}
System.out.println("Average: " + Average(double Value[]));
}
public double Average(double Value[])
{
double average = 0;
for (int n = 0; n < 10; n++)
{
average = average + Value[n];
}
average = average / 10;
return average;
}
}
谢谢
I am trying to call a method which calculate the average value in java. But when I compile it always output '.class' expected when it came to the line:
System.out.println("Average: " + Average(double Value[]));
Here's my code:
public class q2
{
public static void main(String[] args) throws IOException
{
new q2().InputValue();
}
public void InputValue() throws IOException
{
BufferedReader br = new BufferedReader(
new InputStreamReader(System.in));
double[] Value = new double[10];
for (int i = 0; i < 10; i++)
{
System.out.println("Please enter a value: ");
Value[i] = Double.parseDouble(br.readLine());
}
System.out.println("Average: " + Average(double Value[]));
}
public double Average(double Value[])
{
double average = 0;
for (int n = 0; n < 10; n++)
{
average = average + Value[n];
}
average = average / 10;
return average;
}
}
Thanks
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评论（2）
这就是失败的地方：
double Value[]位应该是该方法的参数，例如，我强烈建议您开始遵循正常的 Java 命名约定，例如使用 PascalCase 命名类、方法和使用驼峰命名法的变量。另外，鉴于您的
Value变量实际上包含多个值，我会将其复数为values。当名称选择得当时，您会惊讶地发现代码更容易阅读：）This is the bit that's failing:
The
double Value[]bit should be an argument for the method, e.g.I would strongly recommend that you start following normal Java naming conventions, e.g. naming classes with PascalCase, methods and variables with camelCase. Also, given that your
Valuevariable actually holds multiple values, I'd pluralize it tovalues. You'd be amazed at how much easier code is to read when the names are chosen well :)建议：每当需要数组时，请使用带有 ArrayList 的列表接口。它可以让你避免犯愚蠢的错误。
Suggestion: Use the List Interface with an ArrayList whenever you need an Array. It saves you from making stupid mistakes.