用eclipse找不到文件

Question

Okay so I scoured this site and a few others looking for the answer to this problem and tried all of the suggestions. Nothing is working and it keeps throwing the File not found exception .

File inFile = new File("PhoneRecords.txt");
String path = inFile.getAbsolutePath();
 try {
    System.setIn(new FileInputStream(path));
} catch (FileNotFoundException e) {
    e.printStackTrace();
}
Scanner sc = new Scanner(System.in);

After this it tries to use the Scanner in a method below.

public static PhoneCall readNextPhoneCall(Scanner sc){
  return new PhoneCall (sc.nextDouble(), sc.nextInt());
}

The text file is in the same directory that I am working in and I double made sure that I name it correctly in my code. Please Help.

Answer 1

Creating File with a relative path is always kind of risky. Either use an absolute path like /my/absolute/path or use a different method to get your file.

Also, why not using this constructor : Scanner(File source)

http://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html#Scanner(java.io.File)

Or better, use this one : Scanner(InputStream source)

And then, use getResourceAsStream to properly retrieve your file

InputStream is = getClass().getClassLoader().getResourceAsStream("PhoneRecords.txt");
Scanner sc = new Scanner(is);

Answer 2

Try to put your file here.

--->bin
--->src
--->PhoneRecords.txt

or specify the location of the file. For instance,

String path = "C:\\MyFiles\\PhoneRecords.txt";
File inFile = new File(path);

Answer 3

Did you enable the input in the eclipse console? Scanner caused me some problems when used from the eclipse console before..

Source: https://stackoverflow.com/a/22471175/441907

Answer 4

如果文件放在 src 下，请尝试从类路径加载

Scanner scanner=new Scanner(YourClass.class.getResourceAsStream("/package/...pathtofile");