Programming Languages Quiz

What is the syntax for declaring a variable in C?

• string name;

• int num;

• float value;

• bool flag;

How do you define a class in JAVA?

• public static void main(String[] args) { // class body }

• class ClassName { // class body }

• void ClassName() { // class body }

• ClassName class = new ClassName();

What is the keyword used for creating a function in PYTHON?

• func

• define

• def

• create

Explain the difference between '==' and '===' operators in C.

• The '==' operator checks for equality of values, while the '===' operator checks for both equality of values and data types.

• The '==' operator checks for equality of data types, while the '===' operator checks for equality of values.

• The '==' operator is used for comparing strings, while the '===' operator is used for comparing integers.

• The '==' operator is used for assignment, while the '===' operator is used for comparison.

What is the purpose of 'public static void main(String[] args)' in JAVA?

• It is used to declare variables in Java programs.

• It is a built-in Java library function.

• It is a Java keyword for defining classes.

• It is the entry point for any Java program.

How do you create a list in PYTHON?

• my_list = (1, 2, 3)

• my_list = {1, 2, 3}

• my_list = '1, 2, 3'

• my_list = [1, 2, 3]

What is the 'printf' function used for in C?

• It is used to create graphical user interfaces.

• It is used to perform mathematical calculations.

• It is used to print formatted output to the standard output.

• It is used to read user input from the keyboard.

What is inheritance in JAVA?

• Inheritance in JAVA is a process of creating objects from classes.

• Inheritance in JAVA is used for creating new classes from existing classes.

• Inheritance in JAVA is a feature that allows classes to share common properties.

• Inheritance in JAVA allows a class to inherit properties and behaviors from another class.

How do you write a 'for' loop in PYTHON?

• for i in range(10):

• for x in range(1, 5):

• for item in iterable:

• for element in list:

Explain the concept of pointers in C.

• Pointers in C are similar to arrays and can be accessed using index values.

• Pointers in C are used to perform arithmetic operations on variables directly.

• Pointers in C are only used for dynamic memory allocation.

• Pointers in C are variables that store memory addresses. They are used to store the address of another variable. By using pointers, we can directly manipulate memory locations, access data indirectly, and improve the efficiency of programs.