Help writing java code
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Thread: Help writing java code

  1. #1
    Join Date
    May 2011
    Posts
    44

    Help writing java code

    I have this code thus far:
    Code:
    public class Date 
    {
    	int month;
    	int day;
    	int year;
    
    	public Date(int month,int day,int year)
    	{
    		this.month=month;
    		this.day=day;
    		this.year=year;
    		System.out.println("Date object constructor for date "+month+"/"+day+"/"+year);
    	}
    	public static void main(String args[])
    	{
    		Date d=new Date(11,27,1988);
    		for(int i=1;i<=365;i++)
    		{
    			String date=d.nextDay();
    			System.out.println("Incremented Date: "+date);
    		}
    	}
    
    	public String nextDay()
    	{
    
    		this.day = day + 1;
    		if(month <=7)
    		{
    			if(month &#37; 2 ==0)
    			{
    				if(month==2)
    				{
    					if(year%4 == 0)
    					{
    						if(day>29)
    						{
    							System.out.println("Day "+day+" invalid. Set to day 1.");
    							this.day=1;
    							this.month=month+1;
    							if(month>12)
    							{
    								this.month=1;
    								this.year=year+1;
    							}
    						}
    					}
    					else if(day>28)
    					{
    						System.out.println("Day "+day+" invalid. Set to day 1.");
    						this.day=1;
    						this.month=month+1;
    						if(month>12)
    						{
    							this.month=1;
    							this.year=year+1;
    						}
    					}
    				}
    				if( day>30)
    				{
    					System.out.println("Day "+day+" invalid. Set to day 1.");
    					this.day=1;
    					this.month=month+1;
    					if(this.month>12)
    					{
    						this.month=1;
    						this.year=year+1;
    					}
    				}
    			}
    			else
    			{
    				if( day>31)
    				{
    					System.out.println("Day "+day+" invalid. Set to day 1.");
    					this.day=1;
    					month=month+1;
    					if(month>12)
    					{
    						month=1;
    						year=year+1;
    					}
    				}
    			}
    		}
    		else
    		{
    			if(month % 2 ==0)
    			{
    				if( day>31)
    				{
    					System.out.println("Day "+day+" invalid. Set to day 1.");
    					this.day=1;
    					month=month+1;
    					if(month>12)
    					{
    						month=1;
    						year=year+1;
    					}
    				}
    			}
    			else
    			{
    				if( day>30)
    				{
    					System.out.println("Day "+day+" invalid. Set to day 1.");
    					this.day=1;
    					month=month+1;
    					if(month>12)
    					{
    						month=1;
    						year=year+1;
    					}
    				}
    			}
    		}
    		return this.month+"/"+this.day+"/"+year;
    	}
    
    }
    What I need to do from here is write a seperate .java file that will ask a user to input a month day and year, and then ask how many days from the date entered to increment. I am STUCK on how to code that piece, can a more elite programmer assist in the coding of this?
    Last edited by jo15765; May 20th, 2012 at 08:46 PM. Reason: Had code commented out that shouldn't have been

  2. #2
    Join Date
    May 2012
    Posts
    2

    Re: Help writing java code

    Hi!

    First of all, you should avoid to name your class Date. It is not a good coding style naming classes after a java object class.

    Next, avoid to use too many nested if and else statements. Instead use switch/case statements wherever you can.

    Now to your problem. If I get you right, all you need is to write is a new Java class containing a main method (similiar to the one you already have in your Date class). Read in the user input, call the Date's class constructor with current date as parameters, code a FOR loop and call nextDay method in Date class as often as the user specified.

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