EX NO 7 : OOPS LAB - FUNCTION OVERLOADING

 

EX NO 7 – Function overloading

Set 1. Smart Calculator with Mode-Based Operations ( ROLL NUM - 56 TO 61)

Function: calculate()

Overloads:

• calculate(int a, int b, char op)
• Perform operation based on op
• '+' → addition
• '-' → subtraction
• '*' → multiplication
• '/' → division (handle divide-by-zero)
• calculate(double a, double b)
• Always perform division and return precise result
• calculate(int a)
• Return square of number

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Set  2. Student Evaluation System ( ROLL NUM - 6 TO 10)

Function: evaluate()

Overloads:

• evaluate(int marks)
• Assign grade:
• ≥90 → A
• ≥75 → B
• ≥50 → C
• <50 → Fail
• evaluate(int marks, int attendance)
• If attendance > 85%, add 5 bonus marks
• Then compute grade
• evaluate(string grade)
• Print remark:
• A → Excellent
• B → Good
• C → Average
• Fail → Needs Improvement

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Set  3. Password Validation System 🔐  ( ROLL NUM - 11 TO 15)

Function: validate()

Overloads:

• validate(string password)
• Check:
• Length ≥ 6
• Contains at least one digit
• validate(string password, int minLength)
• Check if password length ≥ minLength
• validate(string password, bool checkSpecial)
• If true, check for special characters (@,#,$,%,&)

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Set  4. Online Shopping Discount System 🛒 ( ROLL NUM - 16 TO 20)

Function: calculateBill()

Overloads:

• calculateBill(double amount)
• No discount → return same amount
• calculateBill(double amount, int discountPercent)
• Apply:
  final = amount - (amount * discountPercent / 100)
• calculateBill(double amount, string couponCode)
• Example logic:
• "SAVE10" → 10% discount
• "FLAT500" → subtract 500
• Invalid → no discount

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Set   5. Attendance Tracking System  ( ROLL NUM - 21 TO 25)

Function: markAttendance()

Overloads:

• markAttendance(int studentID)
• Mark as Present
• markAttendance(int studentID, string status)
• Accept "Present" or "Absent"
• Store/display accordingly
• markAttendance(string name)
• Mark attendance using student name instead of ID

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Set  6. Time Conversion Utility ⏱️  ( ROLL NUM - 26 TO 30)

Function: convertTime()

Overloads:

• convertTime(int seconds)
• Convert into:
• minutes = seconds / 60
• remaining seconds
• convertTime(int minutes, int seconds)
• Convert into total seconds
• convertTime(int hours, int minutes, int seconds)
• Convert into:
• total seconds
• OR total minutes (your choice for variation)

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Set  7. Medical Diagnosis Assistant 🏥 ( ROLL NUM - 31 TO 40)

Function: diagnose()

Overloads:

• diagnose(float temperature)
• 37.5°C → Fever
• Else → Normal
• diagnose(float temperature, int pulseRate)
• Fever + pulse > 100 → “Consult Doctor”
• Else → Mild condition
• diagnose(string symptom)
• Example:
• "cough" → Cold
• "headache" → Stress
• "stomach pain" → Digestive issue

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Set  8. Matrix Operations System ( ROLL NUM - 41 TO 50)

Function: operate()

Overloads:

• operate(matrix A, matrix B)
• Perform matrix addition
• operate(matrix A, int scalar)
• Multiply each element by scalar
• operate(matrix A)
• Return transpose of matrix

👉 Students must implement loops properly here (good practice!)

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Set  9. File Logger System 📁  ( ROLL NUM - 51 TO 55)

Function: log()

Overloads:

• log(string message)
• Print message with default tag [INFO]
• log(string message, string level)
• Print: [LEVEL]: message
• log(string message, string level, string time)
• Print: [TIME] [LEVEL]: message

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Set  10. Geometry Distance Analyzer   ( ROLL NUM - 1 TO 10)

Function: distance()

Overloads: