Thread: Help with Java homework

I am completely lost with this assignment. Can someone help me with it? Here are our instructions:

This assignment will use the following description to implement a Dialog class for the Leap Year Problem. You need to decompose this problem into 2 classes:


1.The Date.java class. Implement a public class Date that represents a date composed of a month , day, and a year. Declare month, day, and year as integers. They are the 3 instance variables. Remember that you need to write a constructor Date and 4 methods:

"daysIs()" which returns a day

"monthIs()" which returns a month

"yearIs()" which returns a year

"isLeapYear()" is needed in the class Date. It has one parameter "year" and returns a boolean. Write the method isLeapYear() knowing that a year is defined to be a leapyear it is a multiple of 4, and if it is is a multiple of 100, it must also be a multiple of 400. isLeapYear() thus decides when a year is a leap year. (see the discussion on "Hints for Assign5" to discover specific examples of a LeapYear).

2.The DateJDialog.java class: which implements the GUI. Please use the Dialog boxes developed in the book in chapter2 in pages 99-100 in the code-listing 2-32 (NamesDialog.java) for input and output.

Remember that you will prompt the user to enter:

1.a day;

2.a month;

3.a year

And out of these 3 you will be able to create a Date. Then you will use the dialog box to tell the user whether the year entered was a leapyear or not a leapyear.

The purpose of the Date.java that you will implement is to decide whether a year is a leap year. Here is a definition of when a year is considered a leap year :
1.
year y1 is a leap year if it is multiple of 4.

2.
year y1 is a leap year if it is a multiple of 100, it must be a multiple of 400.

3.
Otherwise y1 is not a leap year.


Do not forget to compile the 2 java files. To verify that the DateJDialog.java works, in TextPad after you compile DateJDialog.java, Click on Tools, Click on "Run Java Application".

Originally Posted by BoDuke1835

Can someone help me with it?

Glad to help. What do you need help with?

Here is what I have for the leap year program. The 2nd file will be for the GUI, how do I associate the files together?

public class LeapYear {
public static void main(String[] args) {
int year = Integer.parseInt(args[0]);
boolean isLeapYear;

// divisible by 4
isLeapYear = (year % 4 == 0);

// divisible by 4 and not 100
isLeapYear = isLeapYear && (year % 100 != 0);

// divisible by 4 and not 100 unless divisible by 400
isLeapYear = isLeapYear || (year % 400 == 0);

System.out.println(isLeapYear);
}
}