Hello Friend,

You can use the following code:

import java.util.*;
import java.text.*;
class  CheckDay{
   public static void main(String[] args){
     Scanner input=new Scanner(System.in);
     System.out.println("Enter date(1-31):");
     int dd=input.nextInt();
     System.out.println("Enter month(1-12): ");
     int month=input.nextInt()-1;
     System.out.println("Enter year: ");
     int year=input.nextInt();
   Date date= (new GregorianCalendar(year, month, dd)).getTime();
   SimpleDateFormat f = new SimpleDateFormat("EEEE");
     String day=f.format(date);
     System.out.println(day);
     }
}

Thanks

thank you for the program.... it was very useful to me...but how can i find a day without using the SimpleDateFormat class..

 By Nishanth Thomas  - Insolutions Global  Bangalore

  package example;

     import java.text.DateFormat;
    import java.text.SimpleDateFormat;
    import java.util.Date;

   import com.sun.org.apache.xerces.internal.impl.xpath.regex.ParseException;

public class test3 {

/**
 * @param args
 * @throws java.text.ParseException 
 */
 public static void main(String[] args) throws java.text.ParseException {
    // TODO Auto-generated method stub
    try {  
     String str_date="11-jan-07";
     DateFormat formatter ; 
      Date date ; 
      formatter = new SimpleDateFormat("dd-MMM-yy");
      date = (Date)formatter.parse(str_date);  
    // System.out.println("Today is " +date );

     SimpleDateFormat sdf;

     sdf = new SimpleDateFormat("DD/MM/yyyy");
     System.out.println("DAte " + sdf.format(date));


      } catch (ParseException e)
      {
          System.out.println("Exception :"+e);  }  

     }
    }

Convert into format 23/08/2007 if given date is 23/08/2007 or 23-aug-2010

 By Nishanth Thomas  - Insolutions Global  Bangalore
  package example;

  import java.text.DateFormat;
  import java.text.SimpleDateFormat;
 import java.util.Date;

 import com.sun.org.apache.xerces.internal.impl.xpath.regex.ParseException;

public class test3 {

/**
 * @param args
 * @throws java.text.ParseException 
 */
public static void main(String[] args) throws java.text.ParseException {
    // TODO Auto-generated method stub

        String str_date="23/08/2007";  // or 23-aug-2010

        DateFormat formatter ; 
        Date date ; 
        SimpleDateFormat sdf = null;
        try{
            formatter = new SimpleDateFormat("dd/MM/yyyy");
            date = (Date)formatter.parse(str_date);
            //System.out.println(formatter);

            sdf = new SimpleDateFormat("dd/MM/yyyy");
            System.out.println("DAte " + sdf.format(date));

        }catch (Exception e){
            //  e.printStackTrace();
              System.out.println(" error");
            try{
                formatter = new SimpleDateFormat("dd-MMM-yyyy");
                date = (Date)formatter.parse(str_date);  
            //  System.out.println("Today is " +date );



                sdf = new SimpleDateFormat("dd/MM/yyyy");
                System.out.println("DAte " + sdf.format(date));



            } catch (ParseException e1)
            {
                System.out.println("Exception :"+e1);  
                }  


        }
 }

}