Code to Convert Date into dd/mm/yyyy Format

package com.prokarma.calendar;

import java.util.Calendar;

import java.util.GregorianCalendar;

public class CalendarString {

     

      public static void main(String[] args) {

      Calendar cal = new GregorianCalendar();

      String date = "";

      String month = "";

     

      int year = cal.get(Calendar.YEAR);

      int month_1 = cal.get(Calendar.MONTH);

      int date_1 = cal.get(Calendar.DATE);

     

      if ( date_1 < 10 )

            date = "0" + date_1;

      else

            date = Integer.toString(date_1);

      if ( month_1 < 10 )

            month = "0" + month_1;

      else

            month = Integer.toString(month_1);

      String currentDate =  date + "/" + month + "/" + year ;

     

      System.out.println("Current Date(dd/mm/yyyy): " + currentDate);

   }

}

Charts with YUI3

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Understanding Instanceof

package edu.scjp.exam;

class A {

      A() {

            System.out.println("Inside A");

      }

}

class B extends A {

     

      B() {

            System.out.println("Inside B");

      }

}

class C extends B {

     

      C() {

            System.out.println("Inside C");

      }

}

public class Instance {

     

      public static void main(String args[]) {

           

            A a = new A();

            C c = new C();

           

            if (a instanceof A)

            System.out.println(" a Object is an instance of A");

           

            if ( a instanceof C) // this will not get printed

                  System.out.println("-- a Object is an instance of C");

           

            a = new B();

           

            if (a instanceof B)

                  System.out.println(" a Object is now an instance of B");

           

            if ( c instanceof A)

                  System.out.println(" c Object is an instance of A");

           

           

      }

}