What could be output of the following fragment of code?public class Test{public static void main(String args[]){String x = "hellow";int y = 9;System.out.println(x += y);}}

hrows an exception as string and int are not compatible for addition

Which of the following statement is correct?

strcmp(s1, s2) returns 1 if s1==s2

strcmp(s1, s2) returns a number less than 0 if s1>s2

strcmp(s1, s2) returns a number greater than 0 if s1

strcmp(s1, s2) returns 0 if s1==s2

strcmp(s1, s2) returns 1 if s1==s2

What is the correct syntax of enum?

enum flag(constant1, constant2, constant3, ....... );

enum flag{constant1, constant2, constant3, ....... };

enum flag(constant1, constant2, constant3, ....... );

enum flag[constant1, constant2, constant3, ....... ];

enumflag{constant1, constant2, constant3, ....... };

All enum constants are

contain dupicate value in their scope

Which of the following statements are correct about the program below?

The code converts upper case character to lower case

The code converts a string in to an integer

The code converts lower case character to upper case

The code converts upper case character to lower case

There are two groups of string functions defined in the header . What are they?

first group names beginning with str; second group names beginning with is

first group names beginning with str; second group names beginning with mem

first group names beginning with str; second group names beginning with is

first group names beginning with string; second group names beginning with mem

first group names beginning with str; second group names beginning with type

Which of the following is the right syntax to copy n characters from the object pointed to by s2 into the object pointed to by s1?

void *memcpy(void *s2, const void *s1, size_t n);

void *memcpy(void *s1,const void *s2,size_t n);

void *memcpy(void *s2, const void *s1, size_t n);

void memcpy(void *s1,const void *s2, size_t n);

void memcpy(void *s2,const void *s1,size_t n);

The mem functions are meant for _______

returning a pointer for implemented-defined string

returning a pointer to the token

manipulating objects as character arrays

returning a pointer for implemented-defined string

returning a pointer to first occurrence of string in another string

Which among the following option is the full set of character class Hexadecimal digits?

{ 0 1 2 3 4 5 6 7 8 9 A B C D E F }

{ 0 1 2 3 4 5 6 7 8 9 a b c d e f }

{ 0 1 2 3 4 5 6 7 8 9 A B C D E F a b c d e f }

What is the return value of strxfrm()?

length of the transformed string, including the terminating null-character

length of the transformed string, not including the terminating null-character

length of the transformed string, including the terminating null-character

display the transformed string, not including the terminating null character

display the transformed string, not including the terminating null-character

void *memcpy(void *dest, const void *src, size_t n) What does the following code do?

copies n character from dest to src

copies n characters from src to dest

copies n character from dest to src

transform n character from dest to src

transform n character from src to dest

151 + Mcqs in Strings in C Programming Page 2 McqOptions

51.	What could be output of the following fragment of code?public class Test{public static void main(String args[]){String x = "hellow";int y = 9;System.out.println(x += y);}}
A.	hrows an exception as string and int are not compatible for addition
B.	ellow9
C.	hellow
D.	ompilation error
E.	one of these
Answer» C. hellow

Discussion

52.	Determine output:public class Test{public static void main(String args[]){String s1 = "SITHA";String s2 = "RAMA";System.out.println(s1.charAt(0) > s2.charAt(0));}}
A.	rue
B.	alse
C.
D.	ompilation error
Answer» B. alse

Discussion

53.	What will be the output of the following program?public class Test{public static void main(String args[]){String s1 = "java";String s2 = "java";System.out.println(s1.equals(s2));System.out.println(s1 == s2);}}
A.	alse true
B.	alse false
C.	rue false
D.	rue true
Answer» E.

Discussion

54.	What will be the output of the following program code?class LogicalCompare{public static void main(String args[]){String str1 = new String("OKAY");String str2 = new String(str1);System.out.println(str1 == str2);}}
A.	rue
B.	alse
C.
Answer» C.

Discussion

55.	The output of the following fraction of code ispublic class Test{public static void main(String args[]){String s1 = new String("Hello");String s2 = new String("Hellow");System.out.println(s1 = s2); }}
A.	ello
B.	ellow
C.	ompilation error
D.	hrows an exception
E.	one of these
Answer» C. ompilation error

Discussion

56.	Which of the following statements are correct about the below declarations?char *p = "Sanjay";char a[] = "Sanjay";1: There is no difference in the declarations and both serve the same purpose.2: p is a non-const pointer pointing to a non-const string, whereas a is a const pointer pointing to a non-const pointer.3: The pointer p can be modified to point to another string, whereas the individual characters within array a can be changed.4: In both cases the '\0' will be added at the end of the string "Sanjay".
A.	1, 2
B.	2, 3, 4
C.	3, 4
D.	2, 3
Answer» C. 3, 4

Discussion

57.	Arithmetic operations are not allowed on enumerated constants.
A.	True
B.	False
C.	May be True or False
D.	Can't Say
Answer» C. May be True or False

Discussion

58.	Which of the following statement is correct?
A.	strcmp(s1, s2) returns a number less than 0 if s1>s2
B.	strcmp(s1, s2) returns a number greater than 0 if s1<s2
C.	strcmp(s1, s2) returns 0 if s1==s2
D.	strcmp(s1, s2) returns 1 if s1==s2
Answer» D. strcmp(s1, s2) returns 1 if s1==s2

Discussion

59.	What is the correct syntax of enum?
A.	enum flag{constant1, constant2, constant3, ....... };
B.	enum flag(constant1, constant2, constant3, ....... );
C.	enum flag[constant1, constant2, constant3, ....... ];
D.	enumflag{constant1, constant2, constant3, ....... };
Answer» B. enum flag(constant1, constant2, constant3, ....... );

Discussion

60.	If we do not explicitly assign values to enum names, the compiler by default assigns values to ?
A.
B.	-1
C.	0
D.	Garbage
Answer» D. Garbage

Discussion

61.	All enum constants are
A.	Same in their scope
B.	unique in their scope
C.	contain dupicate value in their scope
D.	None of the above
Answer» C. contain dupicate value in their scope

Discussion

62.	Enumeration (or enum) is a ______ data type in C.
A.	user defined
B.	built-in
C.	libary
D.	None Of the above
Answer» B. built-in

Discussion

63.	What will be the output of the following program in 16 bit platform assuming that 1022 is memory address of the string "Hello1" (in Turbo C under DOS) ?
A.	1022 Hello2
B.	Hello1 1022
C.	Hello1 Hello2
D.	1022 1022
Answer» B. Hello1 1022

Discussion

64.	Which of the following statements are correct about the below declarations?char *p = "Sanjay";char a[] = "Sanjay";1: There is no difference in the declarations and both serve the same purpose.2: p is a non-const pointer pointing to a non-const string, whereas a is a const pointer pointing to a non-const pointer.3: The pointer p can be modified to point to another string, whereas the individual characters within array a can be changed.4: In both cases the '\0' will be added at the end of the string "Sanjay".
A.	1, 2
B.	2, 3, 4
C.	3, 4
D.	2, 3
Answer» C. 3, 4

Discussion

65.	Which of the following statements are correct about the program below?
A.	The code converts a string in to an integer
B.	The code converts lower case character to upper case
C.	The code converts upper case character to lower case
D.	Error in code
Answer» C. The code converts upper case character to lower case

Discussion

66.	Which of the following statements are correct ?1: A string is a collection of characters terminated by '\0'.2: The format specifier %s is used to print a string.3: The length of the string can be obtained by strlen().4: The pointer CANNOT work on string.
A.	1, 2
B.	1, 2, 3
C.	2, 4
D.	3, 4
Answer» C. 2, 4

Discussion

67.	Length of the string "compsciedu" is
A.	11
B.	10
C.	9
D.	12
Answer» C. 9

Discussion

68.	How will you print ' ' on the screen?
A.	printf("
B.	printf('
C.	printf("\n");
D.	printf(""
Answer» D. printf(""

Discussion

69.	Which of the following statements are correct ?
A.	1,2,3
B.	1,2
C.	2,4
D.	3,4
Answer» B. 1,2

Discussion

70.	Let x be an array.Which of the following operations is illegal?
A.	I and II
B.	I, III and IV
C.	III and IV
D.	II and III
Answer» E.

Discussion

71.	If the size of pointer is 4 bytes then What will be the output of the program ?
A.	22, 4
B.	25, 5
C.	24, 5
D.	20, 2
Answer» D. 20, 2

Discussion

72.	What will be the output of the program (Turbo C in 16 bit platform DOS) ?
A.	CompSciBits CompSci
B.	CompSciBits CompSciBits
C.	CompSci CompSci
D.	Error
Answer» C. CompSci CompSci

Discussion

73.	What will be the output of the program in Turbo C?
A.	CompSci Bits
B.	Bits
C.	CompSci
D.	Error
Answer» E.

Discussion

74.	What will be the output of the program in 16-bit platform (Turbo C under DOS) ?
A.	8, 1, 4
B.	4, 2, 8
C.	4, 2, 4
D.	10, 3, 4
Answer» C. 4, 2, 4

Discussion

75.	If char=1, int=4, and float=4 bytes size, What will be the output of the program ?
A.	1, 2, 4
B.	1, 4, 4
C.	2, 2, 4
D.	2, 4, 8
Answer» C. 2, 2, 4

Discussion

76.	If the size of pointer is 32 bits What will be the output of the program ?
A.	10, 22, 2
B.	10, 41, 2
C.	11, 41, 1
D.	12, 22, 2
Answer» D. 12, 22, 2

Discussion

77.	What is the output of the given code ?
A.	Empty String
B.	String is not empty
C.	0
D.	None of the above
Answer» C. 0

Discussion

78.	How many times the loop will execute ?
A.	98
B.	0
C.	98766
D.	90765
Answer» E.

Discussion

79.	Which of the following gives the memory address of the first element in array foo, an array with 10 elements?
A.	foo
B.	&foo;
C.	foo[0]
D.	&foo;[0]
Answer» B. &foo;

Discussion

80.	What will be the output of the program If characters 'a', 'b' and 'c' enter are supplied as input?
A.	abc abc
B.	bca
C.	Infinite loop
D.	cba
Answer» E.

Discussion

81.	No library function will store a zero in errno.
A.	true
B.	false
Answer» B. false

Discussion

82.	There are two groups of string functions defined in the header . What are they?
A.	first group names beginning with str; second group names beginning with mem
B.	first group names beginning with str; second group names beginning with is
C.	first group names beginning with string; second group names beginning with mem
D.	first group names beginning with str; second group names beginning with type
Answer» B. first group names beginning with str; second group names beginning with is

Discussion

83.	__________ tells the compiler that this data is deﬁned somewhere and will be connected with the linker.
A.	errno
B.	extern
C.	variable
D.	yvals
Answer» C. variable

Discussion

84.	errno causes trouble in two subtler ways(vague and explicit).
A.	true
B.	false
Answer» B. false

Discussion

85.	Which of the following is the right syntax to copy n characters from the object pointed to by s2 into the object pointed to by s1?
A.	void memcpy(void s1,const void *s2,size_t n);
B.	void memcpy(void s2, const void *s1, size_t n);
C.	void memcpy(void s1,const void s2, size_t n);
D.	void memcpy(void s2,const void s1,size_t n);
Answer» B. void memcpy(void s2, const void *s1, size_t n);

Discussion

86.	The mem functions are meant for _______
A.	returning a pointer to the token
B.	manipulating objects as character arrays
C.	returning a pointer for implemented-defined string
D.	returning a pointer to first occurrence of string in another string
Answer» C. returning a pointer for implemented-defined string

Discussion

87.	Which among the following option is the full set of character class Hexadecimal digits?
A.	{ 0 1 2 3 4 5 6 7 8 9 A B C D E F }
B.	{ 0 1 2 3 4 5 6 7 8 9 a b c d e f }
C.	{ 0 1 2 3 4 5 6 7 8 9 A B C D E F a b c d e f }
D.	{ 0 1 2 3 4 5 6 7 8 9}
Answer» D. { 0 1 2 3 4 5 6 7 8 9}

Discussion

88.	_______ occurs when a result is too large in magnitude to represent errors as a floating-point value of the required type.
A.	underflow
B.	signiﬁcance loss
C.	domain
D.	overflow
Answer» E.

Discussion

89.	What occurs when a result has nowhere near the number of signiﬁcant digits indicated by its type.
A.	domain
B.	underflow
C.	overflow
D.	signiﬁcance loss
Answer» E.

Discussion

90.	Which header declares several functions useful for testing and mapping characters?
A.	assert.h
B.	stdio.h
C.	ctype.h
D.	errno.h
Answer» D. errno.h

Discussion

91.	Which among the given options compares atmost n characters of string ch to string s?
A.	int strncmp(ch, s, n)
B.	int strcmp(ch, s)
C.	int strncmp(s, ch, n)
D.	int strcmp(s, ch)
Answer» B. int strcmp(ch, s)

Discussion

92.	Which code from the given option return pointer to last occurrence of c in ch or NULL if not present?
A.	char *strchr(ch, c)
B.	char *strrchr(ch,
C.	char *strncat(ch, c)
D.	char *strcat(ch, c)
Answer» C. char *strncat(ch, c)

Discussion

93.	The______ function returns the number of characters that are present before the terminating null character.
A.	strlength()
B.	strlen()
C.	strlent()
D.	strchr()
Answer» C. strlent()

Discussion

94.	Which among the following is Copying function?
A.	memcpy()
B.	strcopy()
C.	memcopy()
D.	strxcpy()
Answer» B. strcopy()

Discussion

95.	How will you print n on the screen?
A.	printf(''\n'');
B.	echo ''\\n'';
C.	printf('\n');
D.	printf(''\\n'');
Answer» E.

Discussion

96.	What is the return value of strxfrm()?
A.	length of the transformed string, not including the terminating null-character
B.	length of the transformed string, including the terminating null-character
C.	display the transformed string, not including the terminating null character
D.	display the transformed string, not including the terminating null-character
Answer» B. length of the transformed string, including the terminating null-character

Discussion

97.	Use_______to determine the null-terminated message string that corresponds to the error code errcode.
A.	strerror()
B.	strstr()
C.	strxfrm()
D.	memset()
Answer» B. strstr()

Discussion

98.	What error occurs when a result is undeﬁned for a given argument value?
A.	signiﬁcance loss
B.	underflow
C.	overflow
D.	domain
Answer» E.

Discussion

99.	The isdigit function tests for any decimal-digit character.
A.	true
B.	FALSE
Answer» C.

Discussion

100.	void memcpy(void dest, const void *src, size_t n) What does the following code do?
A.	copies n characters from src to dest
B.	copies n character from dest to src
C.	transform n character from dest to src
D.	transform n character from src to dest
Answer» B. copies n character from dest to src

Discussion

Explore topic-wise MCQs in C Programming.

What could be output of the following fragment of code?public class Test{public static void main(String args[]){String x = "hellow";int y = 9;System.out.println(x += y);}}

Determine output:public class Test{public static void main(String args[]){String s1 = "SITHA";String s2 = "RAMA";System.out.println(s1.charAt(0) > s2.charAt(0));}}

What will be the output of the following program?public class Test{public static void main(String args[]){String s1 = "java";String s2 = "java";System.out.println(s1.equals(s2));System.out.println(s1 == s2);}}

What will be the output of the following program code?class LogicalCompare{public static void main(String args[]){String str1 = new String("OKAY");String str2 = new String(str1);System.out.println(str1 == str2);}}

The output of the following fraction of code ispublic class Test{public static void main(String args[]){String s1 = new String("Hello");String s2 = new String("Hellow");System.out.println(s1 = s2); }}

Arithmetic operations are not allowed on enumerated constants.

Which of the following statement is correct?

What is the correct syntax of enum?

If we do not explicitly assign values to enum names, the compiler by default assigns values to ?

All enum constants are

Enumeration (or enum) is a ______ data type in C.

What will be the output of the following program in 16 bit platform assuming that 1022 is memory address of the string "Hello1" (in Turbo C under DOS) ?

Which of the following statements are correct about the program below?

Which of the following statements are correct ?1: A string is a collection of characters terminated by '\0'.2: The format specifier %s is used to print a string.3: The length of the string can be obtained by strlen().4: The pointer CANNOT work on string.

Length of the string "compsciedu" is

How will you print ' ' on the screen?

Which of the following statements are correct ?

Let x be an array.Which of the following operations is illegal?

If the size of pointer is 4 bytes then What will be the output of the program ?

What will be the output of the program (Turbo C in 16 bit platform DOS) ?

What will be the output of the program in Turbo C?

What will be the output of the program in 16-bit platform (Turbo C under DOS) ?

If char=1, int=4, and float=4 bytes size, What will be the output of the program ?

If the size of pointer is 32 bits What will be the output of the program ?

What is the output of the given code ?

How many times the loop will execute ?

Which of the following gives the memory address of the first element in array foo, an array with 10 elements?

What will be the output of the program If characters 'a', 'b' and 'c' enter are supplied as input?

No library function will store a zero in errno.

There are two groups of string functions defined in the header . What are they?

__________ tells the compiler that this data is deﬁned somewhere and will be connected with the linker.

errno causes trouble in two subtler ways(vague and explicit).

Which of the following is the right syntax to copy n characters from the object pointed to by s2 into the object pointed to by s1?

The mem functions are meant for _______

Which among the following option is the full set of character class Hexadecimal digits?

_______ occurs when a result is too large in magnitude to represent errors as a floating-point value of the required type.

What occurs when a result has nowhere near the number of signiﬁcant digits indicated by its type.

Which header declares several functions useful for testing and mapping characters?

Which among the given options compares atmost n characters of string ch to string s?

Which code from the given option return pointer to last occurrence of c in ch or NULL if not present?

The______ function returns the number of characters that are present before the terminating null character.

Which among the following is Copying function?

How will you print n on the screen?

What is the return value of strxfrm()?

Use_______to determine the null-terminated message string that corresponds to the error code errcode.

What error occurs when a result is undeﬁned for a given argument value?

The isdigit function tests for any decimal-digit character.

void *memcpy(void *dest, const void *src, size_t n) What does the following code do?

void memcpy(void dest, const void *src, size_t n) What does the following code do?