question What is the output of System out println Math floor 7 8

Programming

What is the output of System.out.println(Math.floor(7.8));?

A. 7
B. 8
C. 7.8
D. 8.0

'Math.floor(7.8)' returns the largest integer less than or equal to 7.8, which is 7.0.

What is the purpose of the 'getch' function in C?

A. Get a character without echoing to the screen
B. Get a character with echoing to the screen
C. Get an integer
D. Get a float

How do you declare a dynamic array in C?

A. int arr[];
B. int arr[10];
C. int *arr = malloc(10 * sizeof(int));
D. int arr[10] = new int[10];

What is the purpose of the 'strcmp' function in C?

A. Concatenate strings
B. Copy strings
C. Compare strings
D. Convert strings

How do you define a multi-line macro in C?

A. #define MACRO_NAME() { }
B. #define MACRO_NAME { }
C. #macro MACRO_NAME { }
D. #macro MACRO_NAME() { }

How do you declare a function pointer in C?

A. int (*funcPtr)();
B. int funcPtr();
C. (*int funcPtr)();
D. int *funcPtr();

Which of the following is not a bitwise operator in C?

A. &
B.
C. -
C. ^

What is the purpose of the 'memcpy' function in C?

A. Compare memory
B. Copy memory
C. Concatenate memory
D. Allocate memory

What is the purpose of the 'fflush' function in C?

A. Flush the keyboard buffer
B. Flush the output buffer
C. Flush the standard input
D. Flush the file stream

What is the role of the 'auto' keyword in C?

A. Declare an automatic variable
B. Declare an automatic pointer
C. Automatically allocate memory
D. Auto-cast variables

What is the output of printf("%d", 1 == 1 ? 10 : 20);?

A. 10
B. 20
C. 1
D. 0