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Home » Placement Papers » iNautics Placement Papers » iNautics Placement Paper 3

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iNautics Placement Paper


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iNautics 14 Feb 2004, Saturday


1. Why do you want to leave current company ?


2. What is your role in project and how you manage you role at your company ?


3. How do you manage people, how you do reviews, testing ? Do you use any automated tools for testing ? How do you do performance testing ?


4. How you manage configuration control ?


5. What is the difference between forward tag and sendRedirect() ?



6. What is a singleton class ?



7. What is the difference between Abstract class and Interface. In what situations, they can be used ?



8. How do you send data from an applet to Servlet ? What are the steps involved in it ?

Answer :
It's pretty straightforward. You can use the java.net.URLConnection and java.net.URL classes to open a standard HTTP connection to the web server. The server then passes this information to the servlet in the normal way. 

Basically, the applet pretends to be a web browser, and the servlet doesn't know the difference. As far as the servlet is concerned, the applet is just another HTTP client. 

(Of course, you can write a servlet that is meant to be called only by your applet, in which case it *does* know the difference. You can also open a ServerSocket on a custom TCP port, and have your applet open a Socket connection. You must then design and implement a custom socket-level protocol to handle the communication. This is how you could write, e.g., a Chat applet communicating with a servlet. In general, a custom protocol requires more work than HTTP, but is more flexible. However, custom protocols have a harder time getting through firewalls.) 

For more detail, you can see the Sun Web Server FAQ (http://www.sun.com/software/jwebserver/faq/faq.html) 
Questions C8 (http://www.sun.com/software/jwebserver/faq/faq.html#c8) 
and C9 (http://www.sun.com/software/jwebserver/faq/faq.html#c9) . 

Also, Chad Darby has an article with source code (http://www.j-nine.com/pubs/applet2servlet/index.htm) on the subject. 

And Netscape DevEdge Online has a similar article - Applet-to-Servlet Communication for Enterprise Applications (http://developer.netscape.com/viewsource/index_frame.html?content=fields_servlet/fields_servlet.html) skip to the "Communication Tactics" section to get to the good part. 



9. What is Polymorphism. Explain ?



10.What are the types of Polymorphism ? What is Run-Time polymorphism ?



11. Any questions for us ?


iNautics Paper


1.main()
{
char **p="Hello";
printf("%s",**p);
}

Ans: Garbage or nothing

2.main()
{
printf("%d%c\n");
printf("%d%c\n");
}

Ans: Garbage Value

3. main()
{
int x=5;
printf("%d%d",x++,++x);
}

Ans=6 6

4. main()
{
int x=4;
printf("%d",printf(" %d %d ",x,x) );
}

Ans: 4 4 5

5. main()
{
union 
{
int i;
char p; 

struct 
{
int t;
char e;
char o;
}w;

}l;
printf("%d\n",sizeof(l) );
}

Ans: 4

6. main()
{
int i=0,n=6;
while(n-->0);
i+=n;
printf("%d\n",i);
}

Ans: -1

7. main()
{
char a[]="Hello";

printf("%c\n",*a++);
}
Ans: Error

8. a=3,b=2,c=1;
What's the value of k?
k= a< b < c-1;

Ans: 0

9. main()
{
int a=3;
do
{
printf("%d", a);
a=-1;
} while(a>0);

}

Ans: 3

10.It is not "exact" Question; But the given Answers is:
a) PASS1 PASS2
b) PASS1 FAIL1
c)FAIL1 FAIL2
d)FAIL1 PASS2

main()
{
char c=-32;
int i=-64;
unsigned u=-26;
if(c>i)
printf("PASS1");
if( i < c)
printf("PASS2");
else
printf("FAIL1");
if(i<u)
printf("PASS2");
else
printf("FAIL2");
}

Ans: PASS1 PASS2 PASS1

11. 
main()
{
int i=0;
for( i=0; i<=20;i++)
{
switch(i)
{
case 0: i+=5;
case 1: i+=2;
case 2: i+=5;
default: i+=4;
break;
}
printf("%d",i);
}


Ans: 16 21


12.main()
{
int i=4;
switch(i)
{
case 1:
printf("HEllo"):
case default: // "case" should not come with "default"
printf("****");
}
}

Ans: Error

13.
main()
{
int sum=0,count;
for(count=1;sum+=count)
printf("%d\t",sum);
}
Ans: Error

14.
#define cond(a) a>=65 && a<=90 
main()
{
char s='R';
if( cond(s) )
printf("UPPER CASE");
else
printf("LOWER CASE");
}

Ans:UPPER CASE

15.main()
{
static int i=5;
printf("%d\t",i--);
if( i)
main();
}

Ans: 5 4 3 2 1

16. main()
{
char *a1="new",*a2="dictionary",*t;
swap(a1,a2); 
printf("(%s%s)",a1,a2);
t=a1;
a1=a2;
a2=t;
printf("-(%s%s)",a1,a2);
}
swap( char *s1,char *s2)
{
char *temp;
s1=s2;
s2=s1;
temp=s1;
}

Ans: (newdictionary)-(dictionarynew)

17.
*p++?

Ans: increments Address

18.
main()
{
int a[]={ 10,20,30,40,50};
char*p=(char*)a;
printf("%d", * ( (int *) p+4);
}

Ans: 50

19.one question nothig but calling a function before it has been defined.


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