Assignment Overview

This practice assignment is designed to help students revise and apply the concepts of variables and data types. Students will identify data types, declare variables, initialize values, apply naming rules, use constants, perform type conversion, and write simple language-neutral pseudocode.

The purpose of this assignment is not to memorize syntax from a specific programming language. Instead, students should understand the logic behind how data is stored, named, converted, and used in a program.

Learning Objectives

After completing this assignment, students should be able to:

Prerequisites

Before attempting this assignment, students should revise the following topics:

Assignment Instructions

Read each task carefully and write your answers clearly. Use language-neutral pseudocode where coding is required.

Task 1: Identify Data Types

Identify the most suitable data type for each value.

Task 2: Choose Better Variable Names

Rewrite the poor variable names using meaningful names.

Task 3: Declare Variables

Write language-neutral variable declarations for the following requirements.

Task 4: Initialize Variables

Initialize variables with suitable starting values.

1. Create and initialize a variable for student name.
2. Create and initialize a variable for student age.
3. Create and initialize a variable for average marks.
4. Create and initialize a variable for login status.
5. Create and initialize a variable for total amount.

Task 5: Variables vs Constants

Decide whether each value should be stored as a variable or constant.

Task 6: Type Conversion

The following values are stored as text. Convert them into suitable numeric types before calculation.

SET priceText = "250.50"
SET quantityText = "2"

SET totalAmount = priceText * quantityText

DISPLAY totalAmount

Your Task

Rewrite the pseudocode correctly using type conversion.

WRITE YOUR CORRECTED PSEUDOCODE HERE

Task 7: Static Typing or Dynamic Typing?

Identify whether the following pseudocode represents static typing style or dynamic typing style.

Example A

DECLARE studentName AS TEXT = "Ravi"
DECLARE age AS INTEGER = 18
DECLARE isPassed AS BOOLEAN = true

Typing style: ________________________

Example B

SET studentName = "Ravi"
SET age = 18
SET isPassed = true

Typing style: ________________________

Task 8: Strong Typing or Weak Typing Behavior?

Read the behavior and identify whether it shows strong typing behavior or weak typing behavior.

Task 9: Find the Mistakes

Identify the mistakes in the following pseudocode and rewrite it correctly.

DECLARE student name AS TEXT
SET student name = Ravi

DECLARE marks AS TEXT = "80"
DECLARE bonusMarks AS INTEGER = 5

SET finalMarks = marks + bonusMarks

DISPLAY finalMarks

Mistakes to Find

Write Corrected Version

WRITE YOUR CORRECTED PSEUDOCODE HERE

Task 10: Mini Program - Student Result Calculator

Write language-neutral pseudocode for a student result calculator.

Requirements

Your Pseudocode

WRITE YOUR STUDENT RESULT CALCULATOR PSEUDOCODE HERE

Task 11: Mini Program - Simple Billing System

Write pseudocode for a simple billing system.

Requirements

Your Pseudocode

WRITE YOUR SIMPLE BILLING SYSTEM PSEUDOCODE HERE

Submission Checklist

Before submitting, check whether your assignment follows these points.

Bonus Challenge

Create a small profile summary program using variables and data types.

Requirements

Bonus Pseudocode Area

WRITE YOUR BONUS PROGRAM HERE

Evaluation Rubric

The assignment can be evaluated using the following rubric.

Sample Answer Key

This answer key can be used by instructors for checking. Students should attempt the assignment first before viewing the answers.

Task 1: Data Types

Task 6: Corrected Type Conversion

SET priceText = "250.50"
SET quantityText = "2"

SET price = CONVERT priceText TO DECIMAL
SET quantity = CONVERT quantityText TO INTEGER

SET totalAmount = price * quantity

DISPLAY totalAmount

Task 9: Corrected Mistake Example

DECLARE studentName AS TEXT
SET studentName = "Ravi"

DECLARE marksText AS TEXT = "80"
DECLARE bonusMarks AS INTEGER = 5

SET marks = CONVERT marksText TO INTEGER
SET finalMarks = marks + bonusMarks

DISPLAY finalMarks

Task 10: Student Result Calculator Sample

CONSTANT PASS_MARK = 35
CONSTANT SUBJECT_COUNT = 3

ENTRY POINT
    DECLARE studentName AS TEXT = ""
    DECLARE mathMarks AS INTEGER = 0
    DECLARE scienceMarks AS INTEGER = 0
    DECLARE englishMarks AS INTEGER = 0
    DECLARE totalMarks AS INTEGER = 0
    DECLARE averageMarks AS DECIMAL = 0.0
    DECLARE resultStatus AS TEXT = ""

    INPUT studentName
    INPUT mathMarks
    INPUT scienceMarks
    INPUT englishMarks

    SET totalMarks = mathMarks + scienceMarks + englishMarks
    SET averageMarks = totalMarks / SUBJECT_COUNT

    IF averageMarks >= PASS_MARK THEN
        SET resultStatus = "Pass"
    ELSE
        SET resultStatus = "Fail"
    END IF

    DISPLAY studentName
    DISPLAY totalMarks
    DISPLAY averageMarks
    DISPLAY resultStatus
END ENTRY POINT

Task 11: Simple Billing System Sample

ENTRY POINT
    DECLARE productName AS TEXT = ""
    DECLARE priceText AS TEXT = ""
    DECLARE quantityText AS TEXT = ""
    DECLARE price AS DECIMAL = 0.0
    DECLARE quantity AS INTEGER = 0
    DECLARE totalAmount AS DECIMAL = 0.0
    DECLARE billMessage AS TEXT = ""

    INPUT productName
    INPUT priceText
    INPUT quantityText

    SET price = CONVERT priceText TO DECIMAL
    SET quantity = CONVERT quantityText TO INTEGER

    SET totalAmount = price * quantity

    SET billMessage = "Total amount for " + productName + " is " + CONVERT totalAmount TO TEXT

    DISPLAY billMessage
END ENTRY POINT

Quick Summary