Faruqi's Blog

Berbagi Info & Fakta Unik,Menarik,Bermanfaat

» » A Deeper Look - PBO

A Deeper Look - PBO

Ini adalah beberapa latihan kodingan java 
  • Latihan 8.7
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
/** Latihan 8.7 @author (Tegar Satrio Utomo) @version (6/3/17) */
public class Date
{
    private int month; private int day; private int year;
    
    private static final int[] daysPerMonth =
    {0,31,28,31,30,31,30,31,31,30,31,30,31};
    
    public Date(int theMonth, int theDay, int theYear)
    {
        month=checkMonth(theMonth); year=theYear; day=checkDay(theDay);
        System.out.printf("Date object constructor for date %s\n",this);
    }
    private int checkMonth(int testMonth)
    {
        if(testMonth>0&&testMonth<=12)
        return testMonth;
        
        else
        throw new IllegalArgumentException("Month Must be 1-12");
    }
    private int checkDay(int testDay)
    {
        if(testDay>0&&testDay<=daysPerMonth[month])
        return testDay;
        
        if(month==2&&testDay==29&&(year%400==0||(year%4==0&&year%100!=0)))
        return testDay;
        
        throw new IllegalArgumentException("day out-of-range for the specific month and year");
    }    
    public String toString()
    {
        return String.format("%d/%d/%d",month,day,year);
    }
}
  • Latihan 8.8
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
/** Latihan 8.8 @author (Tegar Satrio Utomo) @version (6/3/17) */
public class Employee
{
    private String firstName; private String lastName;
    private Date birthDate; private Date hireDate;
    
    public Employee(String first, String last, Date dateOfBirth, Date dateOfHire)
    {
        firstName=first; lastName=last;
        birthDate=dateOfBirth; hireDate=dateOfHire;
    }
    
    public String toString()
    {
        return String.format("%s, %s Hired: %s Birthday: %s",lastName,firstName,hireDate,birthDate);
    }
}
  • Latihan 8.9
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
/**Latihan 8.9 @author (Tegar Satrio Utomo) @version (6/3/17) */
public class EmployeeTest
{
    public static void main(String [] args)
    {
        Date Birth=new Date (7,24,1949);
        Date Hire= new Date(3,12,1968);
        Employee employee= new Employee ("Bob","Blue",Birth,Hire);
        
        System.out.println(employee);
    }
}
  • Latihan 8.10
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
/** Latihan 8.10 @author (tegar satrio utomo) @version (6/3/17) */
public enum Book
{
    JHTP("Java How to Program","2012"),
    CHTP("C How to Program","2007"),
    IW3HTP("Internet & World Wide Web How to Program","2008"),
    CPPHTP("C++ How to Program","2012"),
    VBHTPC("Visual Basic How to Program","2011"),
    CSHARPHTP("Visual C# How to Program","2011");
    
    private final String title;
    private final String copyrightYear; 
    
    Book(String BookTitle, String year)
    {
        title=BookTitle;
        copyrightYear=year;
    }
    
    public String getTitle()
    {
        return title;
    }
    
    public String getCopyrightYear()
    {
        return copyrightYear;
    }
}
  • Latihan 8.11
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
/** Latihan 8.11 @author (Tegar Satrio Utomo) @version (6/3/17) */
import java.util.EnumSet;
public class EnumTest
{
   public static void main(String[] args)
   {
       System.out.println("All Books\n");
       for(Book book : Book.values() )
            System.out.printf("%-10s%-45s%s\n",book,book.getTitle(),book.getCopyrightYear());
       
       System.out.println("\nDisplay a range of enum constants:\n");
       
       for(Book book : EnumSet.range(Book.JHTP,Book.CPPHTP))
       System.out.printf("%-10s%-45s%s\n",book,book.getTitle(),book.getCopyrightYear());
   }
}
  • Latihan 8.12

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
/** Latihan 8.12 @author (Tegar Satrio Utomo) @version (6/3/17) */
public class Employee
{
    private String firstName;
    private String lastName;
    private static int count= 0;
    
    public Employee(String first, String last)
    {
        firstName = first;
        lastName = last;
        
        ++count;
        System.out.printf("Employee constructor: %s %s; count = %d\n",firstName,lastName,count);
    }
    
    public String getFirstName()
    {
        return firstName;
    }
    
    public String getLastName()
    {
        return lastName;
    }
    
    public static int getCount()
    {
        return count;
    }
}
  • Latihan 8.13

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
/** latihan 8.13 @author (Tegar Satrio Utomo) @version (6/3/17) */
public class EmployeeTest
{
   public static void main(String[] args)
   {
       System.out.printf("Employees before instatiation: %d\n",Employee.getCount());
   
       Employee e1 = new Employee("Susan","Baker");
   Employee e2 = new Employee("Bob","Blue");
   
   System.out.println("\nEmployees after instantion: ");
   System.out.printf("via e1.getCount(): %d\n",e1.getCount());
   System.out.printf("via e2.gerCount(): %d\n",e2.getCount());
   System.out.printf("via employee.getCount(): %d\n",Employee.getCount());
   
   System.out.printf("Employee 1: %s %s\nEmployee 2: %s %s\n"
   ,e1.getFirstName(),e1.getLastName(),e2.getFirstName(),e2.getLastName());
   
   e1=null;e2=null;   
   }
}
Anda baru saja membaca artikel yang berkategori PBO dengan judul A Deeper Look - PBO. Jika kamu suka, jangan lupa like dan bagikan keteman-temanmu ya... By : Faruqi's Blog
Ditulis oleh: Etri - Senin, 13 Maret 2017

Belum ada komentar untuk "A Deeper Look - PBO"

Posting Komentar

Langganan: Posting Komentar (Atom)