Java 保存 ArrayList 错误

Question

Hello this is my code eclipse is telling me the hire ArrayList needs to be an int and I want to print the toString() method in hire class so I can print everything in the array

    public static void save() {
    try {

        File file = new File("D:/Assignment/filename.txt");

        // If file does not exists then create it
        if (!file.exists()) {
            file.createNewFile();
        }

        FileWriter fw = new FileWriter(file.getAbsoluteFile());
        BufferedWriter bw = new BufferedWriter(fw);
        for(Hire hire:HireList)
        bw.write(hire);
        bw.close();

        System.out.println("Done");

    } catch (IOException e) {
        e.printStackTrace();
    }
}

Answer 1

If you want to write the hire.toString() , simply use this :

bw.write(hire.toStrig());

else Javac can't know if your calling bw.write(int) or bw.write(String) or other ...