修改和显示学生详细信息

我正在制作一个管理学生详细信息的Java程序，希望在修改和显示学生详细信息方面有所帮助。

这是我为“搜索学生”而编写的代码，并考虑过回收该代码以修改和显示学生，但是，我遇到了麻烦。

 public static void searchStudent(){
    try{
        BufferedReader readFile = new BufferedReader(new FileReader(file));

        System.out.println("--- Searching for a Student ---");
        System.out.print("Enter Student Number, Last Name or First Name: ");
        String option = sc.nextLine();

        System.out.println("Searching for '" + option + "' in the Student File");
        System.out.print("\n");

        while((line = readFile.readLine()) != null){
            int indexFile = line.indexOf(option);

            if(indexFile > -1){
                System.out.println(line);
                System.out.print("\n");
            }
        }
        readFile.close();
    } catch(IOException ioe){
        System.out.println("Error Searching for a Student !!!");
    }
}

这是我的“展示学生”代码，有关如何解决该问题的任何提示？提前致谢

public static void displayStudent(){
    try{
        BufferedReader readFile = new BufferedReader(new FileReader(file));

        System.out.println("--- Displaying Student Details ---");
        System.out.print("Enter Student Number: ");
        String option = sc.nextLine();

        System.out.println("Searching for Student '" + option + "' in the Student File");
        System.out.print("\n");

        while((line = readFile.readLine()) != null){
            int indexFile = line.indexOf(option);

            if(indexFile > -1){
                System.out.println("Student Number: " + myArray.get(line)[0]);
                System.out.println("Last Name: " + myArray.get(line)[1]);
                System.out.println("First Name: " + myArray.get(line)[2]);
                System.out.println("Email Address: " + myArray.get(line)[3]);
                System.out.println("Mobile Number: " + myArray.get(line)[4]);
            }
        }
        readFile.close();
    } catch(IOException ioe){
        System.out.println("Error Displaying a Student !!!");
    }
}

ArrayList myArray由以下项填充：

for(int x = 0; x < myArray.size(); x++){
            bw.write(myArray.get(x)[0] + ";");
            bw.write(myArray.get(x)[1] + ";");
            bw.write(myArray.get(x)[2] + ";");
            bw.write(myArray.get(x)[3] + ";");
            bw.write(myArray.get(x)[4] + ";");

            bw.write(System.getProperty("line.separator"));
        }