Basic Structure of a Q-Basic Program

on

With Common Statements 

By BitsBootsBeyond (Diwakar Sapkota)


🌱 Introduction



After understanding what programming and Q-Basic are, the next step is to learn how a Q-Basic program is written.

Every Q-Basic program follows a simple structure.
Once students understand this structure, writing programs becomes easy and logical.

🧱 Structure of a Q-Basic Program

A Q-Basic program generally consists of the following parts:

  1. Comment Statement

  2. CLS Statement

  3. Program Statements

  4. END Statement

Not all programs need every part, but this is the basic format.

1️⃣ Comment Statement


A comment is a statement used to explain the program.
Comments are not executed by the computer.

Purpose of Comment:

  • Makes program easy to understand

  • Helps in revision

  • Useful for teachers and students

Syntax:

' This is a comment

➡ Comments begin with an apostrophe (').

2️⃣ CLS Statement

CLS stands for Clear Screen.

Function:

  • Clears the previous output from the screen

  • Gives a clean output screen

Syntax:

CLS

3️⃣ Program Statements

These are the main instructions of the program.
They tell the computer what task to perform.

Common Program Statements:

🔹 PRINT Statement

Used to display text or values on the screen.

Syntax:

PRINT "Hello, Students"

Output:

Hello, Students

🔹 LET Statement

Used to assign a value to a variable.

Syntax:

LET A = 10

➡ LET keyword is optional in Q-Basic.

🔹 INPUT Statement

Used to take input from the user.

Syntax:

INPUT "Enter a number"; A

4️⃣ END Statement

The END statement marks the end of a program.

Function:

  • Stops program execution

  • Tells the computer that the program is finished

Syntax:

END

🧪 Example of a Complete Q-Basic Program

' Program to display a message
CLS
PRINT "Welcome to Q-Basic"
END

🧠 Important Points to Remember

  • Q-Basic programs are executed line by line

  • Correct spelling and syntax are important

  • Commands are written in English-like words

  • Comments improve program readability

🎯 Exam-Oriented Tips

  • Always start programs with CLS

  • End programs with END

  • Use comments for better presentation

  • Write programs neatly with proper spacing

🌟 Conclusion

Understanding the structure of a Q-Basic program is the foundation of programming.
Once students master this, they can easily learn calculations, conditions, and loops.

At BitsBootsBeyond, we believe:

Strong structure builds strong programmers.

🔜 What’s Next?

In the next lesson, students will learn:

  • Variables & Data Types

  • Input and Output in detail

  • Simple arithmetic programs



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