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DHARMA COMPUTERS TECHNICAL PAPER

JAVA (Conducted on 4-7-98)

1) The size of the integer variable
2) Pick up the Correct Statement  
a) Unsigned int is available in Java 
b) Unsigned int is not availble in Java
c) No unsigned concept in Java
d) None
3) The  Operator is not availble in Java
a) instanceof 
b) >>>
c) >>
d) None
4) All objects of String class holds
a) Constant stings 
b) Variable length strings
c) All of the above
d) None
5) StringBuffer object reserves an extra space of 
a) 2 bytes
b) 4 bytes
c) 16 bytes
d) 32 bytes
6) in & out are 
a) classes in Java.lang package
b) objects inside System class
c) Represents STDIN & STDOUT 
d) Used for I/O with files
7) Java.util Package does not contain
a) Bignum
b) Date
c) Vector
d) None
8) The Size of Vector object is 
a) 100KB
b) 1024KB
c) Limited only by the resource available
d) Unlimited
9) Pick the odd one out in terms of Size issue
a) StringBuffer
b) Vector
c) HashTable
d) String
10) SezuenceInputStream 
a) Merges more than one streams into a single Stream
b) Reads one Stream
c) Raises in EUFException at the end of the each Stream
d) Reads more than one stream without giving EOFException in the middle
11) When the Exception occurs 
a) Exception continues with the next statement after giving an error
b) Skips the block , executes all the Catch blocks
c) Skips the block , executes respective Catch block and executes finally block.
d) None.
12) Pick the Correct Statement:
a) if(!Password.equals("Dhrama"))Invalid user Exception
b) if(!Password.equals("Dhrama"))Invalid user Exception
c) Both a & b
d) None
13) Pick the method not available in DataInputStream
a) writeInt() 
b) writeChar()
c) writeLine()
d) WriteLong()
14) Ab object of InputStream can not write to
a) file
b) string
c) socket
d) none
15) The  method not available in Applet
a) start()
b) destroy()
c) appletInfo()
d) suspend()
16) The default Layout is
a) GridLayout
b) BorderLayout
c) CardLayout
d) GridBagLayout
17) The interface is 
a) instance as an abstract class
b) Can be used for Implementation Inheritance
c) Is another class
d) Can be used Multiple Inheritance
18) Pick the Correct statement 
a) There is no parent and child thread concept in JAVA
b) Parent thread waits for all the child threads to execute
c) 2 threads are accesing the same object at the same time.
d) None
19) Java.net package does not contain 
a) Socket
b) URL Connection
c) DatagramPacket
d) URLDecoder
20) What can't be done using URL Class 
a) Read a file from Server
b) Load a Web document to the browser
c) Write to a file in the Server
d) Rubber technique 
21) The best way to avoid flickering in animation is 
a) override the Paint
b) override the uadate() 
c) Double buffering
d) Rubber_band technique
22) Java.awt.Graphics class does not
a) drawstring()
b) draw3Drect()
c) draw3Doval()
d) drawPolygon()
23) The Garbage Collector will be called when the 
a) Object is destroyed 
b) finalize() method is invoked
c) finally block is executed 
d) gc() method is called
24) Standalone application cab be executed by 
a) extending the class from the object
b) extending the class from the Applet
c) includes the function public static void main(String a[])
d) implementing a thread
25) Pick the wrong statement
a) Java is platform Independent
b) Java is platform dependent when JNI is used 
c) Java thread execution depends on JDK Implementation
d) Programs written in Java are bigger in sixe than C++ programs


CYBERCASH TECHNICAL ' C++ ' PAPER


Conducted on dt:8-5-98

1.  Definition of  Linked List.

2.  What is the meaning of  Test   *t; (Test is the' class ')

3.     Definition Pass by value & pass by definition.


4   When B class is privately derived from a base class A ,the derived class object 
          Can access the  ----------------------------------
a) private members of the B class
b) public members of the  B class
c) protected members of the B class
d) both b & c.

5      A base class pointer can access the members of derived class pointer (T/ F )

6      Class hierarchy means ---------------------------

7. What is Pointer ?

8.  Define Virtual Function  ?

9   It is useful for sometimes that we can't create objects of a class  ( T / F )

10.  What does meaning of this statement ? " Warning :  A reference variable can reference to local object "

a) Syntax error
b) Linker error
c) Runtime error
d) *

11.  Fine Output
      main()
     {
       fun1();
       fun2();
       fun3();
       printf("  HELLO  ");
     }

a) HELLO 
b) Linker error
c) Run time error
d) Syntax error
e) Aborts the program

12.   Can we Overload  this ' >= ' Operaror 

13.    Tell me the  meaning of  '   &ref  '  
14.   a = 32 ;  
         this->a = 32      ( T / F )

15.    






' SREE SOFT  'C++ TECHNICAL PAPER  (20 MIN)

conducted on dt: 10-4-98

1. Tell OUTPUT :
 
       Int   j = 1  //**/2
                        ;
      if(j==1)
       printf("string 1")

	else  printf("String 2");

2. Tell   OUTPUT :

       j=0;
       While(j!=-1)
       {  
           cin>>I;
            cout<<endl<<j;
       }
 
        You Entered  1 2 4  X 
       What is the output ?

a) 1 2 4 x
b) 1 2 4 4 4 4 ( Continuous loop)
c) 1 2 4 x
d) any error
e) no output

3. Tell me the Definition of the following :

a)   const * Foo p;     (Foo is the Class & p is  the object )
b) Foo * const p;
c) * const Foo p;
d) const &  Foo p;
e) const Foo & p;

4. Where we use virtual destructors  ?

5. void max( int & x, int & y) {      }

main()
{
    int a,b;
    max(a,b);
}

what are the x  and y  in the ' max function '

6.   we can't overload these operators
      
      a)   sizeof    : :     *
      b)    : :   .   *  sizeof
      c)    : :   sizeof,  .  
      d)  none

  
7.   #inlcude  "c:>.cpp/.ramesh"
     Can we give we path like this ! will it be compiled ?

8. Tell me the Meaning of  the following:

       Foo & const y;
       Const Foo & y;


INTERVIEW QUESTIONS :

1. When we will use static data ?
2. I don't want to change the data  in this function even I am using reference operator in the following function .
            
       Void method( Foo & a )
       {       }

3. class A
        {
            public int a;
        }
            
       class B : public A
       {         }
  
       class C :  public B
       {     }

     In this above inheritance  using C object  we can't use the varible  HOW ? It means ' p ' is the object of ' C  ' then if we have done like this p.a = 100 We have to get compile_time error  .  HOW ?

4. and asked some Questions on 'JAVA'   no Questions on Project.

 CATS  C&C++ paper  

conducted on dt: --5-98

1) Advantage if iostream.h over stdio.h
a) Better safety
b) Extensibility
c) Subclassble 
d) All

2) A question on the swap
a) i is a pointer to X
b) i is a copy of X
c) i is X
d) none

3) void print(char *s)
{ 
    while(*s)
    { 
       putchar(*s);
       ++s;
         }
     }
     
  
   main(void)
{ 
   char msg[] = "Hello there";
    while(*msg)
    {
       putchar(*msg);
       ++msg;
    }
    print(msg);
}


4)  #define square(x)   x * x
     printf("%d",sqare(3+3));
a) 36
b) 15
c) 36.0
d) error

5)  char ch = 128;
printf("%x",ch);
a) ff80
b) 80
c) 128
d) -80
6) char *msg = "Hello there";
strcpy(msg,"How");
printf("%s\n",msg);

7) main(int c, char *v[])
{
   int i;
   for(int I=1; I<c; ++I)
      printf("%s\n",v[I]);

8) externn int x;         extern int y;
      int y = x;               int x = y;
     main()                    void off(void)
     {  }                         {  }
  

a) x & y  are both initiated to Zero
b) error
c) runtime error
d) error as x & y  can only be initialized with constants.

9) int x = 2;
printf("%d\n",(x & 1),(x&&1));
a) 1  2
b) 0  1
c) 1  0
d) 2  1

10)   int i = 0;
if(i&& ++i)
  printf("%d\n",I);
a) 0 
b) 1
c) compiler dependent
d) none

11)   int i = 1 , y[5];
        y[i] =  ++i;

12)   enum { ten = 010 };
  printf("%d\n",ten);
a) 10
b)  8
c) error
d) runtime


   
 








     
'VERIFONE 'QUESTION PAPER :  (40 min)

 JAVA : 

1.    Difference between synchrounous modem & aynchrounous modem ?
2.  What is meant by 'Singleton Object' ?
3.  Is 'Hot JAVA' a Browser or Compiler ? (Ans : Browser)
4.  Default layout for frame  (Ans:  Border)
5.  Default layout for panel   (Ans: Window      )
6.  Length of Char in Java  
a) 16 bit  b)  32 bit  c)  8 bit (Ans :  )
7. light components are
a) OS peers
b) Not  OS peers
c) Become   awT  Components
8. class mammal { }
class dog extends mammal { }
class cat extends mamma { }
     mammal m;
dog d = new dog();
caat c = new cat();
a) m = d;
b) d = c;
c) d = m;
d) c = (dog) d;
9) class x
{ 
   int val;
   public x(int y)
      {  val = y;  }
   public get_val()
   { return val;  }
   public set_val(int y)
   {  val = y;  }
}


         int z = 10;
         x(10);
         setval(15)
              what is the value of  'val' ?

10)    String s1 = String("peeter");
        String s2 = String("peeter");
        If( s1==s2)
        printf("Equal");
        else
        printf("not equal");
a) equal
b) not equal
c) compile error
d) runtime error




APPTITUDE:

11)   12 coins are there . One coin is weighs more than others(equal weight).
  You have only simple balance.  How many times you will weigh to find    
   the different coin   Ans:    3

12)   3 persons are playing a game. Winner will get this amount equal to the
        amount at the start of game from each looser. They played 3 games .
        each are won one game . At the end they have 12Rs, 4Rs, 20Rs.  What 
        is the amount they started  with.

13)   85 cs students , 100 math students ,35 physics students 
        Ratio of maths to physics












JAVA :

14)  Public class xx
      {
        int val;
        public  static void main(String args[])
        {
          xx  x1 = new xx();
         xx  x2 = new xx();
         system.out.println(x2.val);
        }

14)   Data structure best suitable for receiving  key board input from           
       operating system to application 
a) linear linked list
b) circular linked list
c) doubly linked list
d) linear curve

15)   Only single instance of class : Ans:  singleton
 
16)   what is not find in Data dictionary
a) class 
b) methods
c) attributes
d) values

17)   synonym for object 
a) class
b) Instance

18)   What is not one of 3 goals of  Modular application ?
a) decomposibility
b) uncomparability
c) understandbility
d) performance
19)   What tests will be performed to know this anticipated loads
a) performance
b) Incremental

20)   char * x;
  gets(x);
   a )  error with pointer declaration;
   b )  error with gets declaration.

21)   Declare a pointer to constant char and constant pointer to a char 

22)   Write a declaration that a pointer pointing to a function its name is 'call'   
        which has a one  argument ie pointing to char and that function returns   
        an integer.
   
          
System Logic  ( 30 minutes )

C++ Questions

 Tell me OUTPUT:

1) Void fun( int = 0 , int = 0 );
Void fun();
Void main() 
{
   fun();
}
Assume function defined well

2) void fun(int,int);
      void fun(int,int,…);
       void main()
      {
         cout<<"Hello";
     }

3) class Sample
{
   public:
         void display() const
          { 
              cout<<" Fun_1";
          }
         void display()
          {
              cout<<"Fun_2";
          }

void main()
{
   Sample s1;
   Const Sample s2;
    s1.dis();
    s2.dis();
}

4) class Sample
{
   public:
        Sample()
        {
           cout<<"Hello_1";
        }
        ~ Sample()
        {
           cout<<"Hello_2";
        }
 } s;

void main()
{
  cout<<"Main";
}



5)   void main()
{ 
    int a=1,b=2;
    int c =  a+++b;
    cout<<a<<b<<c;
}

5) int fun()
{  
    i = 10;
    return i;
}
 
void main()
{
  int & i = fun();
  cout<<i;
 }

6) class Sample
      {
        };
       void main()
       {
         cout<<sizeof(Sample);
        }
a) 0  b) nonzero c) error  d) none
 
7)  
 
     
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