无法调用非静态方法 [英] Can't call non static method

问题描述

我正在尝试使用此 wavRead（文件名）但是收到消息无法对非静态方法进行静态引用。

I am trying to use this wavRead(filename) but am getting the message cannot make a static reference to a non static method.

我可以简单地将其设为静态并解决我的问题，但如果不走那条路线怎么办呢。我想保持方法不是静态的。

I could simply make it static and that solves my problem, but how would do it without going that route. I would like to keep the method non static.

这里有一些代码可以让你看到最新情况：

Here is a bit of the code to let you see whats going on:

public class Sound {

double [] mySamples;
public static void main(String[] args){

    String filename = null;
    System.out.println("Type the filename you wish to act upon.");
    Scanner scanIn = new Scanner(System.in);
    filename = scanIn.next();
    wavRead(filename);


}
public void  wavRead(java.lang.String fileName){
    mySamples = WavIO.read(fileName);
}

推荐答案

创建班级实例

public static void main(String[] args){

    String filename = null;
    System.out.println("Type the filename you wish to act upon.");
    Scanner scanIn = new Scanner(System.in);
    filename = scanIn.next();
    Sound sound = new Sound();
    sound.wavRead(fileName);
}

这是一个实例方法，它需要一个实例才能访问它。请浏览关于类和对象的官方教程。

It's an instance method, it requires an instance to access it. Please go through the official tutorials on classes and objects.

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