java断言错误：违反：行。txt存在

Question

我在Data文件夹下有一个文件lines.txt。问题是当我把lines.txt作为输入时，我得到了一个错误。错误发生在这一行SimpleReader inFile = new SimpleReader1L(inputFileName);

我知道这与路径有关，因为它没有被识别，但我没有足够的经验来修复它。有人能告诉我该怎么做吗

import components.set.Set;
import components.simplereader.SimpleReader;
import components.simplereader.SimpleReader1L;
import components.simplewriter.SimpleWriter;
import components.simplewriter.SimpleWriter1L;

public final class pp {

public static void main(String[] args) {
        SimpleReader in = new SimpleReader1L();
        SimpleWriter out = new SimpleWriter1L();
        /*
         * Get input file name
         */

        out.print("Input file (with fragments): ");

        String inputFileName = in.nextLine();
        SimpleReader inFile = new SimpleReader1L(inputFileName);

        /*
         * Get initial fragments from input file
         */
        Set<String> fragments = linesFromInput(inFile);
        /*
}
}

这是simpleReader1L

 public SimpleReader1L(String name) {
        assert name != null : "Violation of: name is not null";
        this.name = name;
        try {
            URL url = new URL(name);
            this.rep =
                    new BufferedReader(new InputStreamReader(url.openStream()));
        } catch (MalformedURLException e) {
            // throw new AssertionError("Violation of: " + url + " is valid");
            try {
                this.rep = new BufferedReader(new FileReader(name));
            } catch (FileNotFoundException ex) {
                throw new AssertionError("Violation of: " + name + " exists");
            }
        } catch (FileNotFoundException e) {
            throw new AssertionError("Violation of: " + name + " exists");
        } catch (IOException e) {
            throw new AssertionError("Violation of: " + name + " can be read");
        }
    }

Answer 1

对new SimpleReader1L("lines.txt")的调用尝试打开当前目录中的文件“lines.txt”。但该文件不在当前目录中。它位于不同的目录中

解决方案：

1. 使用文件的正确的相对路径名。。。相对于运行应用程序的目录¹

2. 为文件使用绝对路径名

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如果您不理解相对路径名和绝对路径名的含义或区别，请尝试阅读以下内容：

• https://www.geeksforgeeks.org/absolute-relative-pathnames-unix/

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^{1-确定目录是什么可能有点棘手。这取决于您如何运行应用程序，因此不需要。}

Answer 2

The error happens at this line SimpleReader inFile = new SimpleReader1L(inputFileName);

目前还不清楚SimpleReader1L希望输入什么。根据文件是以文件对象还是字符串作为文件名，您需要将实际对象或文件的正确路径作为字符串传递

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使用绝对路径（从根目录开始）。e、 g

Windows:D:\somedir\lines.txt

Unix/Mac:/users/<username>/home/lines.txt