问题

以下是您的代码的翻译部分：

class Date {
    // 声明实例变量
    private int day;
    private String month;
    private int year;

    // 构造函数
    public Date(int day, String month, int year) {
        this.day = day;
        this.month = month;
        this.year = year;
    }

    // 获取-设置方法在此
    public String getDateString() {
        String dob = String.valueOf(day) + month + String.valueOf(year);
        return dob;
    }
}

// 这是我的 Profile 类
class Profile {
    private Date dob;
    private String name;

    // 构造函数
    public Profile(Date dob, String name) {
        this.name = name;
        this.dob = dob;
    }

    // 获取-设置方法在此

    public void printProfile() {
        System.out.printf("Name: %s%n", name);
        System.out.printf("Date of birth: %s%n", dob.getDateString());
    }
}

// 这是我的主类。如何使用 Date 类中的 getDateString 方法读取 txt 文件中的名称和出生日期（2019 年 10 月 3 日）？
class Healthprofile {
    public static void main(String[] args) throws IOException {
        Scanner input = new Scanner(new File("info.txt"));
        
        // 声明变量
        String name;
        Date dob;
        
        // 这里需要提前定义 day、month 和 year，然后创建 Date 对象
        int day = ...; // 您需要指定实际的 day 值
        String month = ...; // 您需要指定实际的 month 值
        int year = ...; // 您需要指定实际的 year 值
        Date dob1 = new Date(day, month, year);
        
        name = input.nextLine();
        dob = dob1; // 在这里如何调用它
        
        Profile h1 = new Profile(dob, name);
        h1.printProfile();
    }
}

请注意，代码中的 ... 部分需要您填入实际的值。至于如何从 "8 October 2000" 这样的输入中获取 day、month 和 year 值，您可能需要使用字符串解析和转换来从这种格式的输入中提取正确的值。

class Date
{
//Declare instant variables
private int day;
private String month;
private int year;
//constructor
public Date (int day, String month, int year)
{
this.day = day;
this.month = month;
this.year = year;
}
// get-set methods here
public String getDateString()
{
String dob = String.valueOf(day) + month + String.valueOf(year);
return dob;
}
} 

class Profile {   private Date dob;
private string name;
//constructor
public HealthProfile (Date dob, String name) 
{
this.name = name;
this.dob = dob;
}
// get-set methods here
public void printProfile()
{
System.out.printf ("Name: %s%n", name );
System.out.printf ("Date of birth: %s%n", dob);
}			
} 

class Healthprofile { public static void main (String [] args) throws IOException
{
Scanner input = new Scanner (new File ("info.txt"));
// Declare variables
String name;
Date dob;
Date dob1 = new Date (day, month, year);
name = input.nextLine ();
dob = //How can I call it here
Profile h1 = new Profile (name, dob);
h1.printProfile();
}

答案1

得分: 0

我可以看到你的代码中有一些错误：

1. Profile 类只包括 Profile 构造函数，没有 HealthProfile。

public class Test3{
    public static void main(String[] args){
        Map<String, MyDate> map = new HashMap<>();
        try(Scanner input = new Scanner(new File("info.txt"))){
            int count = 0;
            String name = "";

            while(input.hasNextLine()) {
                String dateF = "";
                if (count == 0) {
                    name = input.nextLine();
                    count++;
                }
                if (count == 1) {
                    dateF = input.nextLine();
                }
                count = 0;

                LocalDate random = getDate(dateF);
                int dat = random.getDayOfMonth();
                String month = String.valueOf(random.getMonth().ordinal());
                int year = random.getYear();
                // Set MyDate class object for DOB
                MyDate myD = new MyDate(dat, month, year);
                //map.put(name, myD);
                // Call profile methods
                Profile h1 = new Profile(myD, name);
                h1.printProfile();
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }

    // This method will return the formatted LocalDate instance for String Date fetched from File
    private static LocalDate getDate(String dateF){
        LocalDate random = null;
        DateTimeFormatter df = new DateTimeFormatterBuilder()
                .appendOptional(DateTimeFormatter.ofPattern("dd MMMM yyyy"))
                .appendOptional(DateTimeFormatter.ofPattern(("d MMMM yyyy"))).toFormatter();
        return LocalDate.parse(dateF, df);
    }
}

2. MyDate 类将显示日期值：

class MyDate {
    private int day;
    private String month;
    private int year;

    //constructor
    public MyDate(int day, String month, int year){
        this.day = day;
        this.month = month;
        this.year = year;
    }

    // get-set methods here
    public String getDateString() {
        String dob = String.valueOf(day) + "/" + month + "/" + String.valueOf(year);
        return dob;
    }
}

3. Profile 类：

class Profile {
    private MyDate dob;
    private String name;

    //constructor
    public Profile(MyDate dob, String name) {
        this.name = name;
        this.dob = dob;
    }

    // get-set methods here
    public void printProfile() {
        System.out.printf("Name: %s%n", name);
        System.out.printf("Date of birth: %s%n", dob.getDateString());
    }
}

    private static LocalDate getDate(String dateF){
LocalDate random=null;
DateTimeFormatter df =new DateTimeFormatterBuilder().appendOptional(DateTimeFormatter.ofPattern("dd MMMM yyyy")).appendOptional(DateTimeFormatter.ofPattern(("d MMMM yyyy"))).toFormatter();
//DateTimeFormatter.ofPattern("d MMMM yyyy");
return LocalDate.parse(dateF, df);
}
}

class Profile {
private MyDate dob;
private String name;
//constructor
public Profile (MyDate dob, String name)
{
this.name = name;
this.dob = dob;
}
// get-set methods here
public void printProfile() {
System.out.printf("Name: %s%n", name);
System.out.printf("Date of birth: %s%n", dob.getDateString());
}
}