to compare time including AM and PM

[preethi Ayyappan]

Hi,
In my project, if a customer calls an agent,his time matches with the server time.If the calling time is between 9.00 AM to 6.00 PM the welcome message will be played.If the calling time is between 6.00 PM to 9.00 Am,the message agents logged off should be played.I tried the following.

   
import java.util.*;
import java.lang.Object;
import java.text.Collator;
public class CurrentTime{
  public static void main(String[] args){
    Calendar calendar = new GregorianCalendar();
    String am_pm;
    int hour = calendar.get(Calendar.HOUR);
    int minute = calendar.get(Calendar.MINUTE);
  //  int second = calendar.get(Calendar.SECOND);
    if(calendar.get(Calendar.AM_PM) == 0)
      am_pm = "AM";
    else
      am_pm = "PM";
  String time= "Current Time : " + hour + ":" + minute + " " + am_pm;
    System.out.println(time);
  
    Collator myCollator = Collator.getInstance();
 
      if(( myCollator.compare(time, "9.00 AM") > 0 ) && (myCollator.compare(time, "6.00 PM") < 0))
    {
    
        System.out.println("welcome");
    }
   
   
    
  }
}
 
 

Here i have checked whether my time 11.49 AM > 9.00 AM and 11.49 AM < 6.00 PM.But nothing is displayed.because it is not taking the AM and PM.It is just comparing 11.49 < 6.00.How can i compare the AM and PM?please help me to solve this.

Thanks.

[Kuladip Yadav]

Try this

 public class CurrentTime
{
    public static void main( String[] args )
    {
        Calendar calendar = new GregorianCalendar();
        String am_pm;
        int hour = calendar.get( Calendar.HOUR );
        int minute = calendar.get( Calendar.MINUTE );
        // int second = calendar.get(Calendar.SECOND);
        if( calendar.get( Calendar.AM_PM ) == 0 ){
            am_pm = "AM";
            if(hour >=9)
                System.out.println( "welcome" );
        }            
        else{
            am_pm = "PM";
            if(hour<6)
                System.out.println( "welcome" );
        }
            
        String time = "Current Time : " + hour + ":" + minute + " " + am_pm;
        System.out.println( time ); 
    }
}   

[preethi Ayyappan]

Thank you so much.your code helps me.

[fred rosenberger]

according to the api, you could also do this:

int hour = calendar.get(Calendar.HOUR_OF_DAY);

which uses a 24 hour clock. you could then check for > 9 and < 18

[Kuladip Yadav]

Originally posted by fred rosenberger:
according to the api, you could also do this:

int hour = calendar.get(Calendar.HOUR_OF_DAY);

which uses a 24 hour clock. you could then check for > 9 and < 18

That is better solution.

[Moiz Randhikpurwala]

Hi how do i extend the logic to support three time zone.. e.g. 2 to 8 i display one message.. 8 to 16 another .. 16 to 24 another messages.. could you please help give n example.

[Campbell Ritchie]

Welcome to the Ranch

Do the documents for DateFormat and its subclasses help? You can put in fields for a timezone.