7

 SPECIAL TUGAS JAVA

import java.text.*;

public class Date extends Object {
private int date, month, year;

public Date ()
{
setDate (18,5,1998);
}
public void setDate (int d, int m, int y)
{
date =( ( d>=1 && d < 30) ? d : 18 );
month =( ( m>=1 && m < 12) ? m : 5 );
year =( ( y>=1900 && y < 2001) ? y : 1998 );
}

public String toUniversalString()
{
DecimalFormat twoDigits = new DecimalFormat ( "00" );
DecimalFormat fourDigits = new DecimalFormat ( "0000" );

return twoDigits.format ( date ) + ":" + twoDigits.format( month ) + ":" + fourDigits.format( year );
}

public String toStandardString()
{
DecimalFormat twoDigits = new DecimalFormat ( "00" );
DecimalFormat fourDigits = new DecimalFormat ( "0000" );

return twoDigits.format ( date ) + ":" + twoDigits.format ( month ) + ":" +fourDigits.format ( year );
}
}



import javax.swing.*;

public class demoDate{
public static void main(String[] dana){
Date date=new Date();

String output="The initial ONE date is : " + date.toUniversalString() + "\nThe initial TWO date is : " + date.toStandardString();

date.setDate(13, 27, 2001);

output+="\n\nUniversal ONE after setDate is : " + date.toUniversalString() + "\nTWO date after setDate is : " + date.toStandardString();

date.setDate(99, 99, 9999);

output+="\n\nAfter attempting invalid setiings : " + "\nONE date : " + date.toUniversalString() + "\nTWO date : " + date.toStandardString();

JOptionPane.showMessageDialog(null, output, "Testing Class date1", JOptionPane.INFORMATION_MESSAGE);

System.exit(0);
}
}