讀取兩個文本文件並將這兩個文本文件中的特定行寫入第三個文件

Question

我正在創建一個醫院管理系統，其中我有 2 個類，即 AddDoctor 和 AddPatient，它們從用戶那里獲取有關其詳細信息的輸入並將它們存儲到各自的文件中。 我現在想創建一個約會 class ，我可以在其中將具有特定 ID 的患者分配給從文件中讀取的具有特定 ID 的醫生。 如果 Java 支持多個 inheritance，這將非常容易，但由於它不支持，所以我堅持如何完成這項任務。

以下是我的 AddDoctor class

class AddDoctor{
    int did;
    int dage;
    long dphno;
    String dname;
    String dgender;
    String dqualification;

    InputStreamReader in = new InputStreamReader(System.in);
    BufferedReader br = new BufferedReader(in);

    void input() throws IOException{
        System.out.print("Enter Doctor's Name:");
        dname = br.readLine();

        Random rand = new Random();
        did = rand.nextInt((9999 - 100) + 1) + 10;

        System.out.print("Enter Doctor's Phone Number:");
        dphno = Long.parseLong(br.readLine());

        System.out.print("Enter Doctor's Age:");
        dage = Integer.parseInt(br.readLine());

        System.out.print("Enter Doctor's Gender:");
        dgender = br.readLine();

        System.out.print("Enter Doctor's Qualification:");
        dqualification = br.readLine();
    }

    void delete() throws FileNotFoundException, IOException{
        Scanner in = new Scanner(System.in);
        File inputFile = new File("DoctorDetails.txt");
        File tempFile = new File("myTemp.txt");

        BufferedReader reader = new BufferedReader(new FileReader(inputFile));
        BufferedWriter writer = new BufferedWriter(new FileWriter(tempFile));

        String currentLine;

        String lineToRemove;
        System.out.println("Enter the ID of the Doctor you wish to delete: ");
        lineToRemove = in.next();

        while((currentLine = reader.readLine()) != null) {
            String trimmedLine = currentLine.trim();
            if(trimmedLine.startsWith(lineToRemove)) continue;          
            writer.write((currentLine) + System.getProperty("line.separator"));
        }
        writer.close();
        reader.close();
        Files.move(tempFile.toPath(), inputFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
    }

    void search() throws IOException{
        Scanner scan=new Scanner(System.in);
        System.out.println("Enter the ID of the Doctor To Search:");
        String did=scan.next();
        String line="";
        try{
            FileInputStream fin = new FileInputStream("DoctorDetails.txt");
            Scanner sc = new Scanner(fin);
            while(sc.hasNextLine()){
                line=sc.nextLine();
                if(line.startsWith(did))
                    System.out.println(line+" ");
            }
            sc.close();
        }
        catch(IOException e){
            e.printStackTrace();
        }
    }
    
    void display(){
        try{
            BufferedReader br=new BufferedReader(new FileReader("DoctorDetails.txt"));
            String s="";
            while((s=br.readLine())!=null){
                String data[]=new String[6];
                data=s.split(" ");
                for(int i=0;i<6;i++){
                    System.out.print(data[i]+"\t");
                }
                System.out.println();
            }
            br.close();
        }
        catch(Exception e){
        }
    }
};


//Class WriteD to Write Doctor Details in a text file where the details are fetched from the Class AddDoctor
class WriteD extends AddDoctor {
        void write() {
            try(FileWriter fw = new FileWriter("DoctorDetails.txt",true);
                BufferedWriter bw = new BufferedWriter(fw);
                PrintWriter out = new PrintWriter(bw))
                {
                    out.println(did + " " + dname + " " + dphno + " " + dage + " " + dgender + " " + dqualification);
                }catch(IOException e){
                e.printStackTrace();
                }
        }
    };

以下是我的 AddPatient Class

    class AddPatient extends People{
    String pillness;
    String pregisterdate;

    InputStreamReader in = new InputStreamReader(System.in);
    BufferedReader br = new BufferedReader(in);

    void input() throws IOException{
        System.out.print("Enter Patient's Name:");
        name = br.readLine();

        Random rand1 = new Random();
        id = rand1.nextInt((9999 - 100) + 1) + 10;

        System.out.print("Enter Patient's Phone Number:");
        phno = Long.parseLong(br.readLine());

        System.out.print("Enter Patient's Age:");
        age = Integer.parseInt(br.readLine());

        System.out.print("Enter Patient's Gender:");
        gender = br.readLine();

        System.out.print("Enter Patient's Illness:");
        pillness = br.readLine();

        System.out.print("Enter Patient's Registration Date:");
        pregisterdate = br.readLine();
    }

    void delete() throws FileNotFoundException, IOException{
        Scanner in = new Scanner(System.in);
        File inputFile = new File("PatientDetails.txt");
        File tempFile = new File("myTemp2.txt");

        BufferedReader reader = new BufferedReader(new FileReader(inputFile));
        BufferedWriter writer = new BufferedWriter(new FileWriter(tempFile));

        String currentLine;

        String lineToRemove;
        System.out.println("Enter the ID of the Patient you wish to delete: ");
        lineToRemove = in.next();

        while((currentLine = reader.readLine()) != null) {
            String trimmedLine = currentLine.trim();
            if(trimmedLine.startsWith(lineToRemove)) continue;
            writer.write((currentLine) + System.getProperty("line.separator"));
        }
        writer.close();
        reader.close();
        Files.move(tempFile.toPath(), inputFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
    }

    void search() throws IOException{
        Scanner scan=new Scanner(System.in);
        System.out.println("Enter the ID of the Patient To Search:");
        String did=scan.next();
        String line="";
        try{
            FileInputStream fin = new FileInputStream("PatientDetails.txt");
            Scanner sc = new Scanner(fin);
            while(sc.hasNextLine()){
                line=sc.nextLine();
                if(line.startsWith(did))
                    System.out.println(line);
            }
            sc.close();
        }
        catch(IOException e){
            e.printStackTrace();
        }
    }

    void display(){
        try{
            BufferedReader br=new BufferedReader(new FileReader("PatientDetails.txt"));
            String s="";
            while((s=br.readLine())!=null){
                String data[]=new String[7];
                data=s.split(" ");
                for(int i=0;i<7;i++){
                    System.out.print(data[i]+"\t");
                }
                System.out.println();
            }
            br.close();
        }
        catch(Exception e){
        }
    }
};

    class WriteP extends AddPatient {
        void write() {
                try(FileWriter fw = new FileWriter("PatientDetails.txt",true);
                    BufferedWriter bw = new BufferedWriter(fw);
                    PrintWriter out = new PrintWriter(bw))
                    {
                        out.println(String.format("%-1s %-1s %-1s %-1s %-1s %-1s %-1s",id,name,phno,age,gender,pillness,pregisterdate));
                    }catch(IOException e){
                    e.printStackTrace();
                    }
            }
        };

Answer 1

簡單的解決方案是使用組合創建醫生和患者的 object 預約 class 並從用戶那里獲取文檔和患者 ID，或者使用對象創建一個並將其寫入第三個文件。

如果是 ID，您需要從文件中搜索信息。 如果有新信息，您將創建醫生和患者的 object。 首先將它們放在他們的文件中，然后根據需要將數據存儲在第三個文件中。

如果它回答了你的問題，請告訴我。

Answer 2

創建約會 class 並使用接受要查找的 id 的搜索方法（看起來類似於您已有的搜索方法），然后使用與您的寫入類似的代碼寫入新文件。