Question

因此，我想要做的基本概念是循环这些用户定义日期的方法（年，月，日）。每个日期都将转换为一个字符串，该字符串将存储在一个数组中。数组的大小由用户决定。当然，数组的大小和循环运行的次数将彼此相等。使用我的代码，循环停止并返回第一个日期的字符串。如何在不打印的情况下存储值，并允许循环继续？

public class Assign4 {

public static void main(String[] args) {        
    //Refer to Ledger Class
    Ledger InfoLedger = new Ledger();

    //Use Ledger Methods
    InfoLedger.UserArraySize(args);
    InfoLedger.LoopInvoice(args);

}

下一课，用户在此定义数组大小

public class Ledger {

//Refer to Invoice Class
Invoice Info = new Invoice();

//Ledger Amount
public static int LedgerAmount;

//Create Ledger Array
public static String[] LedgerArray = new String[LedgerAmount];

//Create new array
public void UserArraySize(String[] args ) {
    Scanner keyboard = new Scanner (System.in);
    System.out.println("Enter the amount of monthly invoices: ");
    LedgerAmount = keyboard.nextInt();
}

public void LoopInvoice(String[] args ) {
    for (int i = 0; i < LedgerAmount; i++) {
        Info.OurDateYear(args);
        Info.OurDateMonth(args);
        Info.OurDateDay(args);
        LedgerArray[i] = Info.DateString(args);
    }
  }
}

这个类只调用OurDate，稍后会更多地使用它

public class Invoice {

//Refer to OurDate Class
OurDate Date = new OurDate();

//Todays Year
public void OurDateYear(String[] args ) {
    Date.setYearFromUser(args);
}

//Todays Month
public void OurDateMonth(String[] args ) {
    Date.setMonthFromUser(args);
}

//Todays Day
public void OurDateDay(String[] args ) {
    Date.setDayFromUser(args);
}

//Display the dates
public String DateString(String[] args ) {
    return Date.toString();
}
}

此类包含用户的方法和toString方法

public class OurDate {
//Date variables and user requests
//integers for the month day and year of both set of inputs are set to defaults
public static Integer TodaysMonth = 1;
public static Integer TodaysDay = 1;
public static Integer TodaysYear = 1990;

//TodaysYear
//Prompt for the user to enter Todays Year
public void setYearFromUser(String[] args ) {
    Scanner keyboard = new Scanner (System.in);
    System.out.println("Enter Today's year (1900 to 2015): ");
    TodaysYear = keyboard.nextInt();

    //Error Checking to check that the Year entered is within the range of 1900 to 2015
    try{
        if(TodaysYear > 1899 && TodaysYear < 2016){
        }else{
            System.out.println("Invalid choice! Please enter a valid Year");
            setYearFromUser(args);
        }
    }catch(Exception e){
        System.out.println("Invalid choice! Please enter a valid Year");
        setYearFromUser(args);
    }
}

//TodaysMonth
//Prompt for the user to enter Todays Month
public void setMonthFromUser(String[] args ) {
    Scanner keyboard = new Scanner (System.in);
    System.out.println("Enter Today's month(from 1 to 12): ");
    TodaysMonth = keyboard.nextInt();

    //Error Checking to check that the Month entered is within the range of 1 to 12
    try{
        if(TodaysMonth > 0 && TodaysMonth < 13){
        }else{
            System.out.println("Invalid choice! Please enter a valid Month");
            setMonthFromUser(args);
        }
    }catch(Exception e){
        System.out.println("Invalid choice! Please enter a valid Month");
        setMonthFromUser(args);
    }
}

//TodaysDay
//Prompt for the user to enter Todays Day
public void setDayFromUser(String[] args ) {
    Scanner keyboard = new Scanner (System.in);
    System.out.println("Enter Today's day (1 to 30): ");
    TodaysDay = keyboard.nextInt();

    //Error Checking to check that the Day entered is within the range of 1 to 30
    try{
        if(TodaysDay > 0 && TodaysDay < 31){
        }else{
            System.out.println("Invalid choice! Please enter a valid Day");
            setDayFromUser(args);
        }
    }catch(Exception e){
        System.out.println("Invalid choice! Please enter a valid Day");
        setDayFromUser(args);
    }
}

//Todays Date ToString
public String ToString(String[] args ) {
    return TodaysDay + "/" + TodaysMonth + "/" + TodaysYear;
}
}

如何从数组中的循环中存储字符串并显示它们？

0 个答案: