user defined class in java [help]

[xianz87]

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guys pa help unta ko. . medyo na confused lng ko ani

create a program for a class named MyDate that contains data members and a contructor that meet the criteria in the following lists. This class is used to initialize instance variables
- the non-static integer data members named month,day,year should be private members.
- the non-static boolean data member named good should be a public member.
- the constructor MyDate() should be assign to the member varialbles the value 1 to month, 1 to day, and 2006 to year and the value true to good. .

unsa iya code ani kng e compile na?

medyo confuse sad ko anang constructor . . mka explain mo?? tnx daan ^_^

[Klave]

This code is good for newer Java where it has auto cast.

Constructors are code to be executed when instantiated by "new". Its syntax is
public/private ClassName

public constructors are accessible by users of the class, while private constructors can only be used within the class.

So wala kaayo ko kasabot unsa gyud ang imong kahinanglan...but this code will compile and work.

Please confirm that you don't need setter/getter methods for your private variables.

public class MyDate{
     private Integer month;
     private Integer day;
     private Integer year;
     public Boolean good;
     public MyDate(){
          month = 1; // can also be new  month = new Integer(1);
          day = 1;
          year = 2006;
          good = true; // can also be good = Boolean.TRUE;
     }

}

To further explain... you can add another constructor...

       public MyDate(int month, int day, int year){
             this.month = month;
             this.day = day;
             this.year = year;
             good = true;
       }

Calling this constructor allows you to initialize the class with user inputted values.