PragmaX Blog

Platform Independence in Java

this is especially for you, mrinmoy, in java, the code is converted into a byte code, which can be interpreted by all operating systems. and the JVM interprets this byte code. JVM is the same regardless of the operating system where it is installed.

there are 3 layers in any program execution:
1. program
2. byte code
3. OS
OS talks to the byte code which is interpreted by JVM. this byte code is OS independent.

for the same reason, writing decompilers for java is simpler as compared to any other language.

Tech talks

So we were in Radhika coffe shop, Fegursson college road, and dicussing technical stuff. Some interview like questions
Questions:

What is the size of an empty class?
Ans. Class size is 1
Class A defines a virtual function foo(). What will be size of this class?
Ans. Class size is 4 (4 bytes are reserve for the virtual pointer)
Class B inherits Class A? Class A defines a virtual function foo()? What will be size of this inherited Class B?
Ans. Class size is 4 (4 bytes are reserve for the virtual pointer)
Class B and C inherit A. D inherits B and C. Class A defines a virtual function foo().What is the size of Class D
Ans. Class size is 8.

------------------------
#include

class A
{
virtual void foo();
};
class B: public A
{
void foo();
virtual void foo2();
};

class C: public A
{
void foo();
virtual void foo2();
};
class D: public B, public C
{
void foo();
virtual void foo2();
};

void main()
{
printf("Size A: %d\n",sizeof(A));
printf("Size B: %d\n",sizeof(B));
printf("Size C: %d\n",sizeof(C));
printf("Size D: %d\n",sizeof(D));
}
--------------------------
Output (Compiled on VC++ [Windows]. Compiler: cl.exe):
Size A: 4
Size B: 4
Size C: 4
Size D: 8

Trick to Increase your hotmail account

This is a useful trick to increase your hotmail account storage capacity to 25 MB.
Sadly this works only on @hotmail.com email id's and not on @msn.com email id's. I tried it on my hotmail id and it worked.

Follow these steps:

Login to your account
Go to Option
Click My Profile
Change Country to United States
Wait for browser to Load US Settings
Change state to Florida and Zip Code to 33332
Click on Save
Go to Language and Make sure it is English
Paste this link in same browser session:
http://by17fd.bay17.hotmail.msn.com/cgi-bin/AccountClose
Wait until the screen says Your Hotmail account is closed and ready to be deleted.
Click Close Account.
Relogin to ur account

No emails will be deleted from ur account and now ur account size limit
increases to 25MB. After 30 days it will increase to 250 MB.

Enjoy!!!

Prakash. :)

Pragmax Get together at NewYorkers restaurant

We met at around 8:30pm today in NewYorkers. Who all were there? Prakash, Archana, Amruta, Madhura, Mrinmoy, Aamod, Pallavi and me (Pramod). We surely missed Milind (who is in Isreal right now) and Geeta (who is in Tamil Nadu) .

We sure behaveg like Jungli's and started hogging!

As we were dicussing about which companies we were associate to, we had a big list with us, namely: IBM, Amdocs, Aviva, Persistant, Patni, KPIT, Cybage

We were out of the restaurant by 11pm. Well that was alot of time!