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Would greatly appreciate some help.

Discussion in 'Java' started by Kalitree, Jul 21, 2008.

  1. Kalitree

    Kalitree New Member

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    Heyas, I'm struggling to come up with some working code for a piece of software I've to make. I know it's got something to do with Arrays, or array lists, which just so happen to be the one thing I missed in C and Java! Student life, eh? :P

    Anyway, the thing I've to do is write a piece of software that permits a user to enter up to 100 contract details (ie. name, number, expected completion date). Although the user to enter an 'actual' completion date for the contracts, and finally, determines whether each contract was completed on schedule, and prints out the contracts completed late.

    Any help would be great and yeah, I know it's a bit to ask, but, you don't ask, you don't get right? :P

    The following is the code I've came up with so far, Apologies for the lack of indentation, it reset it all once posted:

    Code:
    import java.util.Scanner;
    
    public class Contract {
    
    class ContractArray {
    [INDENT]	     [/INDENT] public static void main(String[] args) {
    [INDENT]	          [/INDENT] String[] contArray;              //Declares string of arrays
    
    [INDENT]	          [/INDENT] contArray = new String[100];	
    	
    	
    	          
    class Date
    {	// properties
    [INDENT]	 [/INDENT] private int day, month, year;
    
    	 // methods
    [INDENT]	 [/INDENT] public void readDate(){
    	 // prompts for and reads in a Date from the keyboard
    	          	
    [INDENT]		 [/INDENT] Scanner sc = new Scanner(System.in);
    [INDENT]		 	[/INDENT]do
    	          {	
    [INDENT]	[/INDENT]System.out.print("Enter day: ");	
    [INDENT]	          	[/INDENT]day = sc.nextInt();
    [INDENT]	          	[/INDENT]System.out.print("Enter month: ");
    [INDENT]	          	[/INDENT]month = sc.nextInt();
    [INDENT]	          	[/INDENT]System.out.print("Enter year: ");
    [INDENT]	          	[/INDENT]year = sc.nextInt();
    [INDENT]	          	[/INDENT]if (!validDate())
    [INDENT]	          	[/INDENT]System.out.println("Date not valid! Try again...");
    	          }
    [INDENT]		 	[/INDENT]while (!validDate());
    	          	
    	          	}//readDate
    
    	          	public boolean after(Date D){		
    	          	// checks if a Date is after Date D
    	          	
    	          		if (year > D.year)
    	          			return true;
    	          		else if ((year == D.year) && (month > D.month))
    	          			return true;
    	          		else if ((year == D.year) && (month == D.month) && (day > D.day))
    	          			return true;
    	          		else
    	          			return false;	
    	          	}//after
    
    	          	public void printDate() {
    	          		System.out.println(day + "/" + month + "/" + year);
    	          	}//printDate
    	          	
    	          	public boolean validDate()
    	          	{	if (!validYear(year))
    	          		 	return false;
    	          		else if (!validMonth(month))
    	          			return false;
    	          		else if	(!validDay(day,month))
    	          			return false;
    	          		else		
    	          			return true;
    	          	}//validDate
    
    	          	private boolean validYear(int y)
    	          	{	if ((y < 1990) || (y > 2100))
    	          			return false;
    	          		else	
    	          			return true;
    	          	}//validYear
    	          	
    	          	private boolean validMonth(int m)
    	          	{	if ((m < 0) || (m > 12))
    	          			return false;
    	          		else	
    	          			return true;
    	          	}//validMonth
    	          	
    	          	private boolean validDay(int d, int m)
    	          	{	if ((d < 0) || (d > daysinMonth(m)))
    	          			return false;
    	          		else	
    	          			return true;
    	          	}//validDay
    	          	
    	          	private int daysinMonth(int m)
    	          	{	int NumDays;
    	          		switch(m)
    	          		{	case 1:case 3:case 5:case 7: 
    	          			case 8:case 10:case 12 : NumDays = 31;
    	          							  	  	break;
    	          			case 4:case 6:case 9:case 11: 
    	          									NumDays = 30;
    	          			    					break;
    	          			case 2 : NumDays = 28;
    	          						break;
    	          			default: NumDays =  0;
    	          		}
    	          		return NumDays;
    	}//daysinMonth
    } // end of class Date
    
    	
    public class contractRecord {
    		String custName;
    		String contractNum;
    		int cost;
    		int exCompDate;
    	//	int actCompDate;
    	
    	Scanner sc = new Scanner(System.in);
    	
    	System.out.println("Please enter Customer Name: ");
    	custName = sc.nextString();
        System.out.println("Please enter Contract Number: ");
    	contractNum = sc.nextString();
        System.out.println("Please enter Expected cost:£ ");
    	cost = sc.nextInt	();
        System.out.println("Please enter Expected completion date (DDMMYYYY): ");
    	exCompDate = sc.nextInt();
        //	System.out.println("Please enter Actual completion date (DDMMYYYY): ");		// Not meant for here.
    	//	actCompDate = sc.nextInt();
    	}
    	
    //Run Date Class
    /*
     	//if late
    	System.out.println("********* Contract Number: " + contractNum[]);
    	System.out.print("*********");
    	System.out.println("");
    	System.out.println("Customer: " + custName);
    	System.out.println("");
    	System.out.println("Expected Date of Completion: " + exCompDate);
    	System.out.println("");
    	System.out.println("Actual Date of Completion: " +actCompDate);
    	System.out.println("");
    	System.out.println("Cost:£ " + cost);
    */
    
    }
     
    Last edited by a moderator: Jul 21, 2008
  2. Kalitree

    Kalitree New Member

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    Been thinking about this and I think one of the problems I were having was saving like 5 pieces of data in a single array. Was thinking about using a number of arrays, one for each piece of information. Possible?
     
  3. Kalitree

    Kalitree New Member

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    Managed to come up with the following.

    Code:
    
    import java.util.Scanner;
    
    class Contract {
    
    	public class CustArray {
    		
    	    class ContractDetails {
    	        public static void main(String [] a) {
    	        	
    	        	String s1, s2, s3;
    	        	int s4, s5, s6;
    	        	
    	        	Scanner sc = new Scanner(System.in);
    	        	
    	        	System.out.println("Please enter Customer Name: ");
    	        	s1 = sc.nextString();
    	            System.out.println("Please enter Contract Number: ");
    	        	s2 = sc.nextString();
    	            System.out.println("Please enter Expected cost:£ ");
    	        	s3 = sc.nextInt	();
    	        	
    	        	class Date
    	        	{	// properties
    	        	 private int day, month, year;
    
    	        	 // methods
    	        	 public void readDate(){
    	        	 // prompts for and reads in a Date from the keyboard
    	        	          	
    	        		 Scanner sc = new Scanner(System.in);
    	        		 	do
    	        	          {	
    	        		 		System.out.print("Enter day: ");	
    	        	          	day = sc.nextInt();
    	        	          	System.out.print("Enter month: ");
    	        	          	month = sc.nextInt();
    	        	          	System.out.print("Enter year: ");
    	        	          	year = sc.nextInt();
    	        	          	if (!validDate())
    	        	          	System.out.println("Date not valid! Try again...");
    	        	          }
    	        		 	while (!validDate());
    	        	          	
    	        	          	}//readDate
    
    	        	          	public boolean after(Date D){		
    	        	          	// checks if a Date is after Date D
    	        	          	
    	        	          		if (year > D.year)
    	        	          			return true;
    	        	          		else if ((year == D.year) && (month > D.month))
    	        	          			return true;
    	        	          		else if ((year == D.year) && (month == D.month) && (day > D.day))
    	        	          			return true;
    	        	          		else
    	        	          			return false;	
    	        	          	}//after
    
    	        	          	public void printDate() {
    	        	          		System.out.println(day + "/" + month + "/" + year);
    	        	          	}//printDate
    	        	          	
    	        	          	public boolean validDate()
    	        	          	{	if (!validYear(year))
    	        	          		 	return false;
    	        	          		else if (!validMonth(month))
    	        	          			return false;
    	        	          		else if	(!validDay(day,month))
    	        	          			return false;
    	        	          		else		
    	        	          			return true;
    	        	          	}//validDate
    
    	        	          	private boolean validYear(int y)
    	        	          	{	if ((y < 1990) || (y > 2100))
    	        	          			return false;
    	        	          		else	
    	        	          			return true;
    	        	          	}//validYear
    	        	          	
    	        	          	private boolean validMonth(int m)
    	        	          	{	if ((m < 0) || (m > 12))
    	        	          			return false;
    	        	          		else	
    	        	          			return true;
    	        	          	}//validMonth
    	        	          	
    	        	          	private boolean validDay(int d, int m)
    	        	          	{	if ((d < 0) || (d > daysinMonth(m)))
    	        	          			return false;
    	        	          		else	
    	        	          			return true;
    	        	          	}//validDay
    	        	          	
    	        	          	private int daysinMonth(int m)
    	        	          	{	int NumDays;
    	        	          		switch(m)
    	        	          		{	case 1:case 3:case 5:case 7: 
    	        	          			case 8:case 10:case 12 : NumDays = 31;
    	        	          							  	  	break;
    	        	          			case 4:case 6:case 9:case 11: 
    	        	          									NumDays = 30;
    	        	          			    					break;
    	        	          			case 2 : NumDays = 28;
    	        	          						break;
    	        	          			default: NumDays =  0;
    	        	          		}
    	        	          		return NumDays;
    	        	}//daysinMonth
    	        } // end of class Date
    	        System.out.println("Please enter Actual completion date.");
    	        public void readDate(){
    	        }
    	    /*
    	     	//if late
    	     	
    	    	System.out.println("********* Contract Number: " + s1[]);
    	    	System.out.print("*********");
    	    	System.out.println("");
    	    	System.out.println("Customer: " + s2);
    	    	System.out.println("");
    	    	System.out.println("Expected Date of Completion: " + s4 + s5 + s6);
    	    	System.out.println("");
    	    	System.out.println("Actual Date of Completion: " + s7 + s8 +s9);
    	    	System.out.println("");
    	    	System.out.println("Cost:£ " + s3);
    	    */
    	        
    	        
    	        
    	      }//End of single array
    	   	}//End of Contract Details 
    	}//End of CustArray	
    }//End of Main
    	
    //Run Date Class
    
    
    
    
     

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