Question

Modify the processFile method so that it will compile and it will not produce a runtime error: public static void processFile(File file) { File input = "contents.txt"; String line = null; try { input = new File(file); while ((line = input.readLine()) != null) { System.out.println(line); } return; } finally { if (file != null) { file.close(); } } }

Answer 1

public static void processFile(File file) {
        BufferedReader input = null;
        String line = null;
        try {
            input = new BufferedReader(new FileReader(file));
            while ((line = input.readLine()) != null) {
                System.out.println(line);
            }
        } catch (FileNotFoundException ex) {
            System.out.println("File not present");
        } catch (IOException ex) {
            System.out.println("Cannot read from file");
        } catch (Exception ex){
                    System.out.println("Somthing went wrong");
        } finally {
            if (file != null) {
                try {
                    input.close();
                } catch (IOException ex) {
                    System.out.println("File cannot be closed");
                } catch (Exception ex){
                    System.out.println("Somthing went wrong");
                }
            }
        }
    }