quest.doc

1)Give the Output
	#include<stdio.h>
	main()
	{
		char s[ ]="man";
		int i;
		for(i=0;s[ i ];i++)
		printf("\n%c%c%c%c",s[ i ],*(s+i),*(i+s),i[s]);
	}
mmmm 
aaaa 
nnnn
aaa
	nnnn
	mmmm
mmmm
	aaaa
	nnnn mmmm
nnn
	aaa	
	mmm
ans: 1

2) Give the Output

	#include<stdio.h>
	main()
	{
		static int var = 5;
		printf("%d ",var--);
		if(var)
		main();
	}

5 4 3 2 1
5 5 5 5 5
Error
4 3 2 1 0
Ans: 1

3) Give the Output

	#include<stdio.h>
	main()
	{
		int c[ ]={2.8,3.4,4,6.7,5};
		int j,*p=c,*q=c;

		for(j=0;j<5;j++)
		 {
			printf(" %d ",*c);
			++q;
		 }
		for(j=0;j<5;j++)
		{
			printf(" %d ",*p);
			++p;
		 }
	}
2 2 2 2 2 2 3 4 6 5
2 2 2 2 2 3 4 2 6 5
2 2 2 2 2 4 3 2 6 5
2 2 2 2 2 2 2 2 2 2
Ans: 1

4) Give the Output
#include<stdio.h>
#define clrscr() 100
     main()
     {
         clrscr();
         printf("%d\n",clrscr());
    }
Ans: 100
5) Give the Output

	#include<stdio.h>
	main()
	{
		int i=1,j=2;
		switch(i)
		{
			case 1: printf("GOOD");
				break;
			case j: printf("BAD");
				break;
		}
	}
GOOD
BAD
Compiler Error
Runtime error
Ans: 3
6) Give the Output

	#include<stdio.h>
	main()
	{
		show();
	}
	void show()
	{
		printf("I'm the greatest");
	}	
Compilation error
Runtime Error
I’m The greatest
Ans: 3

7)  Give the Output

	#include<stdio.h>
	main()
	{
		main();
	}		
Runtime error 
Compile time error
Terminated abruptly 
Ans:1

8) Give the Output

	#include<stdio.h>
	main()
	{
		char not;
		not=!2;
		printf("%d",not);
	}
Ans: 0

9)  main() 
{ 
char *str1="abcd"; 
char str2[]="abcd"; 
printf("%d %d %d",sizeof(str1),sizeof(str2),sizeof("abcd")); 
} 
Answer: 
4 5 5
2 5 4
2 4 4
4 4 4
Ans:1

10) Give the Output

	#include <stdio.h>
	int one_d[]={1,2,3};
	main()
	{
		int *ptr;
		ptr=one_d;
		ptr+=3;
		printf("%d",*ptr);
	}
garbage value
Core Dump
Compile time error
3
Ans: 1
11) Give the Output

	#include <stdio.h>
	main(){
	unsigned int i;
	for(i=1;i>-2;i--)
		printf("c aptitude");
	}
Core dump
Compile time Error
Condition False in for loop
c aptitude c aptitude c aptitude 
ans: 3
12)
main() 
{ 
	int i=-1; 
	-i; 
	printf("i = %d, -i = %d \n",i,-i); 
}
i = -1, -i = 1
i = 1 , -i = -1
i = 1,   -i = 1
Compile time error

Ans: 1
13) The classes that extend Throwable class except RuntimeException and Error are known as?

A) Checked Exception
B) Unchecked Exception
C) Error 
D) None of the above

ANSWER: A) Checked Exception



14) These exceptions are seen in 

NullPointerException,
ArrayIndexOutOfBoundsException,
ArithmeticException,
NumberFormatException ?

A) Checked exception
B) Unchecked exception
C) Checked and Unchecked
D) User defined exception

ANSWER: B) Unchecked exception



15)For a class defined inside a method, what rule governs access to the variables of the enclosing method?
1)The class can access any variable
2)The class can only access static variables
3)The class can only access transient variables
4)The class can only access final variables

a) 1 and 4
b) 1 
c) 4
d) 3 and 2

Answer : c.

16. Which of the following is the correct syntax for suggesting that the JVM performs garbage collection.

a)System.free();
b)System.setGarbageCollection();
c) System.out.gc();
d) System.gc();

Answer: d


17)Which of the following statements are true?

a) At the root of the collection hierarchy is a class called Collection
b) The collection interface contains a method called enumerator
c) The interator method returns an instance of the Vector class
d) The Set interface is designed for unique elements

Answer: d)The Set interface is designed for unique elements

18) What will be output by the following line of code? System.out.println(010|4);

a)14
b)0
c)6
d)12

Answer : d) 12

19)Static variable in a class is initialized when

a. every object of the class is created 
b. last object of the class is created 
c. first object of the class is created 
d. No need to initialize static variable

c. first object of the class is created

20. Which of the following are true about static member function?

1. They can access non-static data members
2. They can call only other static member functions
3. They can access global functions and data
4. They can have this pointer
5. They cannot be declared as const or volatile

a. Only 2 
b. Only 2,5 
c. Only 2,3,4,5 
d. Only 2 , 3 , 5 
e 1,2,3,4,5

Answer: d. Only 2 , 3 , 5



21.Which of the following are member dereferencing operators in CPP?

1. *
2. ::
3. ->* 
4. ::*
5. ->

a. Only 1, 3 4 
b. Only 1 and 5 
c. Only 3 and 4 
d. Only 3,4,5

ANSWER: a. Only 1, 3 4