java - 捕获在 for-each 循环中抛出异常的确切项目

Question

我需要访问 catch 子句中的 File 变量 f。我怎样才能实现这个目标？

try { 
    for(File f:filesInDir) {
        new Scanner(new FileInputStream(f)); 
} 
catch(FileNotFoundException e) { 
    System.out.println("Could not open input file "+ f +" for reading.");
}

Answer 1

尝试将 try/catch block 放入 for 循环中，如下所示:

for(File f : filesInDir) {
  try {
    new Scanner(new FileInputStream(f));
  } catch (FileNotFoundException e) {
    System.out.println("Could not open input file " + f + " for reading.");
  } 
}