What is the purpose of the 'toupper()' function in C++?
A. Converts a character to uppercase
B. Converts a character to lowercase
C. Compares two characters
D. Returns the length of a string
Answer: Option A
This Question Belongs to C Plus Plus Programming >> Arrays And Strings In C Plus Plus
What is the correct way to declare a one-dimensional array in C++?
A. int* arr = new int[size];
B. int[] arr = new int[size];
C. int arr = new int[size];
D. int arr[size];
How do you access the third element of an array named 'arr' in C++?
A. arr(3)
B. arr[3]
C. arr[2]
D. arr(2)
What is the size of the following array declaration in C++: char str[10];?
A. 11
B. 10
C. Depends on the length of the string assigned to 'str'
D. None of these
What is the purpose of the 'strlen()' function in C++?
A. Concatenates two strings
B. Compares two strings
C. Returns the length of a null-terminated string
D. Copies a string to another string
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