Explore Programming Basics

What is a variable in programming?

• A variable is a symbolic name for a storage location in memory that can hold a value and may change during program execution.

• A variable is a fixed value that cannot change during program execution.

• A variable is a command that executes a specific task in a program.

• A variable is a type of function that performs calculations.

Which of the following is a data type: String, Loop, Function?

• Array

• Variable

• String

• Class

What does a loop do in programming?

• A loop executes a block of code multiple times.

• A loop creates a new function.

• A loop stores data in a variable.

• A loop runs a program only once.

How do you write a conditional statement in code?

• Use 'while (condition) { // code }' for loops.

• Use 'if (condition) { // code } else { // code }' for conditional statements.

• Write 'if condition: // code' in Python without brackets.

• Use 'switch (condition) { // code }' for conditional statements.

What is the purpose of a function?

• To manage database connections efficiently.

• The purpose of a function is to encapsulate code for reuse and to perform specific tasks.

• To create user interfaces for applications.

• To store data permanently in memory.

What is debugging?

• Debugging is the method of designing user interfaces.

• Debugging is the act of compiling a program.

• Debugging is the process of writing new code.

• Debugging is the process of finding and resolving defects or issues in computer programs.

What symbol is commonly used to denote a comment in code?

• /* comment */

• # or //

• // comment

What is an example of a loop structure?

• do-while loop

• switch statement

• for loop

• while loop

What is the difference between an integer and a float?

• An integer is a whole number; a float is a number that can have decimals.

• An integer can have decimals; a float cannot.

• Both integers and floats can only be positive numbers.

• An integer is a number with a fractional part; a float is a whole number.

How do you declare a variable in most programming languages?

• You declare a variable by using a keyword and a comment.

• You can only declare a variable without a type in dynamic languages.

• You must declare a variable inside a function only.

• You declare a variable by specifying its type and name, optionally initializing it with a value.