java - 确定打开两个文件时找不到哪个文件

Question

有没有办法可以打印出我们在这种情况下找不到的文件？

try{
        in1 = new Scanner(new File(inPath1)); 
        in2 = new Scanner(new File(inPath2));
} catch (FileNotFoundException e){
        System.err.println("File not found: " e);
        System.exit(0);
}

打印出:

File not found: java.io.FileNotFoundException: test.dat (The system cannot find the file specified)

但我只对文件名感兴趣，而不是整个字符串。

Answer 1

是的，对您的代码进行较小的更改，如下所示:

String path = null; //track file name
try{
        in1 = new Scanner(new File(path = inPath1));
        in2 = new Scanner(new File(path = inPath2));
} catch (FileNotFoundException e){
        System.err.println("File not found: " + path);//get recent file name
        System.exit(0);
}