Programming Concepts & Application Development Flashcards

What is a variable in programming?

Answer: A named space to store data values

In programming, a variable is a symbolic name given to a storage location in memory that holds a value. This value can be changed or 'varied' during the execution of a program, allowing programmers to store and manipulate data dynamically. Variables are fundamental building blocks for all programming languages.

Which programming structure is used to repeat a block of code?

Answer: Loops

Loops are programming constructs designed to execute a block of code repeatedly until a certain condition is met or for a specified number of times. They are essential for automating repetitive tasks, iterating through collections of data, and improving code efficiency. Loops prevent redundant code and enable processing large datasets.

What is a function in programming?

Answer: A reusable block of code to perform a task

A function (or subroutine/method) in programming is a self-contained block of code designed to perform a specific task. Functions promote code reusability, modularity, and organization, allowing complex problems to be broken down into smaller, manageable parts. They are crucial for writing clean, efficient, and maintainable code.

Which of the following is a high-level programming language?

Answer: Python

Python is considered a high-level programming language because it uses syntax that is closer to human language and abstracts away many low-level computer details. This makes it easier for programmers to write and understand code compared to low-level languages like Assembly or Machine Code. High-level languages prioritize programmer productivity and readability.

What is the main purpose of debugging in software development?

Answer: To find and fix errors in code

Debugging is the systematic process of identifying, analyzing, and removing errors (bugs) from computer programs. It is a critical phase in software development, ensuring that the code functions as intended and produces correct results. Effective debugging is essential for delivering reliable and stable software.

What is object-oriented programming (OOP)?

Answer: Programming using objects and classes

Object-Oriented Programming (OOP) is a programming paradigm based on the concept of 'objects,' which can contain data (attributes) and code (methods). It organizes software design around data rather than functions and logic, promoting modularity, reusability, and easier maintenance through concepts like encapsulation, inheritance, and polymorphism. OOP is widely used for developing complex applications.

What is the role of an IDE in software development?

Answer: It supports writing and testing code

An Integrated Development Environment (IDE) is a software application that provides comprehensive facilities to computer programmers for software development. It typically includes a source code editor, build automation tools, and a debugger, streamlining the entire coding, compiling, and testing process. IDEs significantly enhance developer productivity and workflow.

Which of the following is used to store multiple values in a single variable?

Answer: Array

An array is a data structure that allows you to store a collection of multiple values of the same data type under a single variable name. Each value in the array can be accessed using an index, making it efficient for managing lists or sequences of data. Arrays are fundamental for organizing and manipulating structured data in programming.

What is source code?

Answer: Readable code written by a programmer

Source code refers to the set of instructions and statements written by a programmer in a human-readable programming language. It is the original form of a program before it is compiled or interpreted into machine code that a computer can execute. Programmers write, read, and modify source code to create software.