Textbook ObjectOriented Data Structures Using Java 3rd editi

Textbook: Object-Oriented Data Structures Using Java 3rd edition Nell Dale, Daniel T Joyce, Chip Weems If implementation is asked for, you must include the snapshot of the running console. Grading: o On-time submission: 35% o Completeness: 35% o Correctness: 30% 1. Chapter 1 exercise 28, 40, 42, and 44 (3rd edition) Sec 1 Pages: 1 of 1 Words: 15 of 51 Print Layout View

Solution

28)

package com.cp.classes;

import java.util.Date;

public class IncDate extends Date{
  

       public IncDate (int newMonth, int newDay, int newYear)
       {
           // Initializes this IncDate with the parameter values
       super (newMonth ,newDay, newYear) ;

       }

       public void increment ()
       {
       // Increments this IncDate to represent the next day, i.e. ,
       // this = (day after this)

       // For example if this = 6/30/2003 then this becomes 7/1/2003
      

       // Increment algorithm goes here
           Date today = new Date(12,25,2001);
           Date tomorrow = new Date(today.getTime() + (1000 * 60 * 60 * 24));
          
System.out.println(\"the tomorrow date is\"+tomorrow);

       }

}

**********************************************************************************************************

package com.cp.classes;

import java.util.Date;

public class sample {

   public static void main(String[] args) {

       int temp;
       Date date1 = new Date(10, 2, 1989);
       Date date2 = new Date(4, 2, 1992);
       IncDate date3 = new IncDate(12, 25, 2001);
       // testing the statements are legar or illeagal
       temp = date1.getDay();
       System.out.println(\"a statement result is\" + temp);
       temp = date3.getYear();
       System.out.println(\"b statement result is\" + temp);
       // date1.increment();//c statement causes compilation error,this
       // statement is invalid
       date3.increment();// d statement valid
       date2 = date1;// valid
       date2 = date3;// valid
       // date3=date2;//invalid causes compilation error

   }

}

output

a statement result is2
b statement result is19
the tomorrow date isSat Jul 26 00:00:00 IST 1919 //date3.increment output

**********************************************************************

40)

package com.cp.classes;

import java.util.Date;

public class sample {

   public static void main(String[] args) {

       IncDate date1=new IncDate(5,5,2000);
       IncDate date2 = date1;
       System.out.println(\"date1\"+date1);
       System.out.println(\"date2\"+date2);
       date1.increment();
       System.out.println(\"the date2 is\"+date2);
   }

}

package com.cp.classes;

import java.util.Date;

public class IncDate extends Date{
  

       public IncDate (int newMonth, int newDay, int newYear)
       {
           // Initializes this IncDate with the parameter values
       super (newMonth ,newDay, newYear) ;

       }

       public void increment ()
       {
       // Increments this IncDate to represent the next day, i.e. ,
       // this = (day after this)

       // For example if this = 6/30/2003 then this becomes 7/1/2003
      

       // Increment algorithm goes here
           Date today = new IncDate(5,5,2000);
           Date tomorrow = new Date(today.getTime() + (1000 * 60 * 60 * 24));
           System.out.println(\"the incremented date1 is\"+tomorrow);

       }

}

output

date1Mon Nov 21 00:00:00 IST 1910
date2Mon Nov 21 00:00:00 IST 1910
the incremented date1 isTue Nov 22 00:00:00 IST 1910
the date2 isMon Nov 21 00:00:00 IST 1910

*********************************************************************************

42)

package com.cp.classes;

import java.util.Date;

public class sample {

   public static void main(String[] args) {

       IncDate date1=new IncDate(5,5,2000);
       IncDate date2 = new IncDate(5,5,2000);
       if(date1==date2)
           System.out.println(\"the dates are equal\");
       else
           System.out.println(\"the dates are not equal\");
      
       date1=date2;
       if(date1==date2)
           System.out.println(\"the dates are equal\");
       else
           System.out.println(\"the dates are not equal\");
       Date date=date1.increment();
       if(date==date2)
           System.out.println(\"the dates are equal\");
       else
           System.out.println(\"not equal\");
      
}
}

package com.cp.classes;

import java.util.Date;

public class IncDate extends Date{
  

       public IncDate (int newMonth, int newDay, int newYear)
       {
           // Initializes this IncDate with the parameter values
       super (newMonth ,newDay, newYear) ;

       }

       public Date increment ()
       {
       // Increments this IncDate to represent the next day, i.e. ,
       // this = (day after this)

       // For example if this = 6/30/2003 then this becomes 7/1/2003
      

       // Increment algorithm goes here
           Date today = new IncDate(5,5,2000);
           Date tomorrow = new Date(today.getTime() + (1000 * 60 * 60 * 24));
           System.out.println(\"the incremented date1 is\"+tomorrow);
return tomorrow;
       }

}

output

the dates are not equal
the dates are equal
the incremented date1 isTue Nov 22 00:00:00 IST 1910
not equal

***********************************************************************************************************

44)

package com.cp.classes;

import java.util.Date;
import java.util.Scanner;

public class sample {

   public static void main(String[] args) {

       Date[] datearray = new Date[10];
       Scanner scanner = new Scanner(System.in);
       for (int i = 0; i < 10; i++) {
           int year = 2005;
           int month = 12;
           System.out.println(\"enter the day between 1 to 10\");
           int day = scanner.nextInt();

           Date date = new Date(day, month, year);

           datearray[i] = date;
       }
       int count = 0;
       for (Date date : datearray) {
           System.out.println(\"the \" + count++ + \"is \" + date);
       }

   }
}

output

enter the day between 1 to 10
1
enter the day between 1 to 10
2
enter the day between 1 to 10
3
enter the day between 1 to 10
4
enter the day between 1 to 10
5
enter the day between 1 to 10
6
enter the day between 1 to 10
7
enter the day between 1 to 10
8
enter the day between 1 to 10
9
enter the day between 1 to 10
10
the 0is Fri Jun 28 00:00:00 IST 1907
the 1is Sat Jun 27 00:00:00 IST 1908
the 2is Sun Jun 27 00:00:00 IST 1909
the 3is Tue Jun 28 00:00:00 IST 1910
the 4is Wed Jun 28 00:00:00 IST 1911
the 5is Thu Jun 27 00:00:00 IST 1912
the 6is Fri Jun 27 00:00:00 IST 1913
the 7is Sun Jun 28 00:00:00 IST 1914
the 8is Mon Jun 28 00:00:00 IST 1915
the 9is Tue Jun 27 00:00:00 IST 1916