我怎樣才能寫 function 那不是主要的

Question

我有一個代碼：

import java.io.*;
import java.util.ArrayList;
import java.util.Scanner;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.io.IOException;

public class Tutorial6 {
    public static void main(String[] args) {
       Scanner scanner = new Scanner(System.in);
       int choose;
       System.out.println("Enter your choice: ");
       choose = scanner.nextInt();
       if(choose == '1'){
          write();
}
       else{
          read();
}
    }

    public static void write() throws IOException, ClassNotFoundException{
       PrintWriter output = new PrintWriter(new FileWriter("users.txt", true));
       Scanner scanner = new Scanner(System.in);
       String name, address, ages;
       System.out.println("Enter your name: ");
       name = scanner.nextLine();
       System.out.println("Enter your address: ");
       address = scanner.nextLine();
       System.out.println("Enter your ages: ");
       ages = scanner.nextLine();

       output.println(name + " " + address + " " + ages + "\n");

       output.flush();
       output.close();

    }
    
        public static void read(){
       Scanner input = new Scanner (new File("users.txt"));
       while (input.hasNext())  {
           System.out.println(input.nextLine());
       }
       input.close();
    }
}

它有一個稱為未處理異常類型的錯誤。 我該如何解決它，我嘗試將寫入和讀取 function 放在不同的 java class 中並且工作正常。 但我希望它像注冊文本界面應用程序一樣工作。

Answer 1

環繞write function 調用與try-catch塊

if(choose == '1'){
    try{
        write();
    } catch(Exception e){
        // handle exception here
    }
} else {
    read();
}