I need some help

[Tmcclain]

This is my first time in Java and I was wondering if someone could help me through this. Thanks.

In this exercise you will write a program that checks to see if a date entered by the user is a valid date in the second millenium. A skeleton of the program is in Dates.java. Open this program and save it to your directory. As indicated by the comments in the program, fill in the following:

An assignment statement that sets monthValid to true if the month entered is between 1 and 12, inclusive.

An assignment statement that sets yearValid to true if the year is between 1000 and 1999, inclusive.

An assignment statement that sets leapYear to true if the year is a leap year. Here is the leap year rule (there's more to it than you may have thought!):
If the year is divisible by 4, it's a leap year UNLESS it's divisible by 100, in which case it's not a leap year UNLESS it's divisible by 400, in which case it is a leap year. If the year is not divisible by 4, it's not a leap year.
Put another way, it's a leap year if a) it's divisible by 400, or b) it's divisible by 4 and it's not divisible by 100. So 1600 and 1512 are leap years, but 1700 and 1514 are not.

An if statement that determines the number of days in the month entered and stores that value in variable daysInMonth. If the month entered is not valid, daysInMonth should get 0. Note that to figure out the number of days in February you'll need to check if it's a leap year.

An assignment statement that sets dayValid to true if the day entered is legal for the given month and year.

If the month, day, and year entered are all valid, print "Date is valid" and indicate whether or not it is a leap year. If any of the items entered is not valid, just print "Date is not valid" without any comment on leap year.




//Dates.java
//
// Determine whether a 2nd-millenium date entered by the user
// is valid
//
// ****************************************************************
import cs1.Keyboard;

public class Dates
{
public static void main(String[] args)
{
int month, day, year; //date read in from user
int daysInMonth; //number of days in month read in
boolean monthValid, yearValid, dayValid; //true if input from user is valid
boolean leapYear; //true if user's year is a leap year

//Get integer month, day, and year from user


//Check to see if month is valid


//Check to see if year is valid


//Determine whether it's a leap year


//Determine number of days in month


//User number of days in month to check to see if day is valid


//Determine whether date is valid and print appropriate message

}

}

[lunchboxtheman]

This is an excercise from "Java Software Solutions" by Lewis, Lofting and Cocking. Most likely you have to do this program for a class. They give you the skeleton of the program that you have posted with the course, and it's also in the book. I know, because I took AP computer Science and Java in highschool, and we used this book. In fact I still have this program. cs1.Keyboard is also a package that comes with the book. Write your own programs. If you have specific questions about an issue, we are more than happy to help. We, however, will not write your entire program for you.

However, since it seems you don't even know where to begin, the first thing you need to do is to get a date from the user.

int date = 0;
System.out.print ("Enter a date in the second millenium: ");
date = Keyboard.readInt ();

That will get a date from the user and store it in the variable called date. Now it's up to you to determine if it's valid. Make sure that the keyboard class is in the same folder that your Dates.java file is in.

EDIT: the written description is also copied word for word from the book.

[System_Error]

This is my first time in Java and I was wondering if someone could help me through this. Thanks.

In this exercise you will write a program that checks to see if a date entered by the user is a valid date in the second millenium. A skeleton of the program is in Dates.java. Open this program and save it to your directory. As indicated by the comments in the program, fill in the following:

An assignment statement that sets monthValid to true if the month entered is between 1 and 12, inclusive.

An assignment statement that sets yearValid to true if the year is between 1000 and 1999, inclusive.

An assignment statement that sets leapYear to true if the year is a leap year. Here is the leap year rule (there's more to it than you may have thought!):
If the year is divisible by 4, it's a leap year UNLESS it's divisible by 100, in which case it's not a leap year UNLESS it's divisible by 400, in which case it is a leap year. If the year is not divisible by 4, it's not a leap year.
Put another way, it's a leap year if a) it's divisible by 400, or b) it's divisible by 4 and it's not divisible by 100. So 1600 and 1512 are leap years, but 1700 and 1514 are not.

An if statement that determines the number of days in the month entered and stores that value in variable daysInMonth. If the month entered is not valid, daysInMonth should get 0. Note that to figure out the number of days in February you'll need to check if it's a leap year.

An assignment statement that sets dayValid to true if the day entered is legal for the given month and year.

If the month, day, and year entered are all valid, print "Date is valid" and indicate whether or not it is a leap year. If any of the items entered is not valid, just print "Date is not valid" without any comment on leap year.




//Dates.java
//
// Determine whether a 2nd-millenium date entered by the user
// is valid
//
// ****************************************************************
import cs1.Keyboard;

public class Dates
{
public static void main(String[] args)
{
int month, day, year; //date read in from user
int daysInMonth; //number of days in month read in
boolean monthValid, yearValid, dayValid; //true if input from user is valid
boolean leapYear; //true if user's year is a leap year

//Get integer month, day, and year from user


//Check to see if month is valid


//Check to see if year is valid


//Determine whether it's a leap year


//Determine number of days in month


//User number of days in month to check to see if day is valid


//Determine whether date is valid and print appropriate message

}

}

Is this all? I'd like to do all of your homework if that's okay :rolleyes: