C-BASICS

What is a correct syntax to output "Hello World" in C?

• printf("Hello World");  

• System.out.printline("Hello World");

• Console.WriteLine("Hello World");

• cout << "Hello World";

Which of the following is a correct way to declare a integer variable in C?

• int x;

• String x;

• float x;

• boolean x;

What is the output of the following C code snippet?

int x = 5;
int y = 3;
printf("%d", x + y);

• 8

• 53

• 15

• 35

Which of the following is a correct way to write a for loop in C?

• for(int i = 0; i < 10; i++)

• for i = 0; i < 10; i++

• for i = 0; i < 10

• for(int i = 0; i < 10

What is the correct way to define a function in C?

• void functionName() {}

• functionName() {}

• def functionName() {}

• function functionName() {}

Which data type is used to store decimal numbers in C?

• int

• char

• float

• double

What is the correct way to compare two variables in C?

• x == y

• x = y

• x === y

• x != y

What is the correct way to declare a character array in C?

• char str[100];

• string str[100];

• char[] str = new char[100];

• char[] str = char[100];

Which header file is used for input and output functions in C?

• stdio.h

• inputoutput.h

• io.h

• fileio.h

What is the correct way to read an integer input in C?

• scanf("%d", &num);

• cin >> num;

• read(num);

• input("%d", num);