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- Basic Input/Output & Data Types
- Beginner Level
- Print "Hello World"
- Print user's name
- Add two integers
- Swap two numbers (using temp)
- Find ASCII value of a character
- Multiply two floating values
- Convert integer to float and vice-versa
- Area of a circle
- Celsius to Fahrenheit conversion
- Read and display user input
- Intermediate Level
- Swap numbers (without temp)
- Compound interest calculator
- Simple calculator using user input
- Find quotient & remainder
- Check if number is positive, negative, or zero
- Check if a character is vowel or consonant
- Compute square & cube of a number
- Convert days to years + weeks + days
- Perimeter of rectangle
- Volume of a cylinder
- Advanced Level
- Menu-driven Basic Calculator using switch
- Evaluate mathematical expression with precedence
- Read full line input incl. spaces using Scanner
- Find result of power without Math.pow()
- Accept & process command line arguments
- Format output using printf() specifiers
- Currency conversion menu (USD, INR, EUR etc.)
- BMI calculator
- Unit converter (km-mile, cm-inch, etc.)
- EMI calculator
- Random number generator within range
- Generate unique invoice ID using timestamp
- Student Marks → Grade using nested switch
- Compute electricity bill based on slabs
- Salary slip generation with allowances
- Hotel bill calculator with discounts
- Data type range display using wrappers
- Interest comparison FD vs RD
- Leap year check with logical operators
- Convert lower ↔ upper case without built-in methods
- Input validation: numeric only
- Library due fine calculator
- Operators & Expressions
- Beginner Level
- Perform arithmetic operations (+, –, ×, ÷, %)
- Demonstrate increment and decrement operators
- Compare two numbers using relational operators
- Logical operator demonstration (AND, OR, NOT)
- Largest of two numbers using ternary operator
- Check if number is even or odd
- Sum of first N natural numbers
- Product of first N natural numbers
- Calculate square and cube of a number using *
- Demonstrate compound assignment operators (+=, -=, etc.)
- Intermediate Level
- Evaluate an expression with multiple operators (precedence)
- Convert seconds to hours, minutes & seconds
- Percentage & result using multi-expression formula
- Distance converter using arithmetic operators
- Temperature unit converter with precise formatting
- Demonstrate bitwise operators (&, |, ^, ~, <<, >>)
- Check if number is multiple of 3 or 5 using logical conditions
- Calculate profit or loss percentage
- Compute average of numbers using dynamic input
- Perimeter and area of geometric shapes (menu-driven)
- Advanced Level
- Solve quadratic equation for real & imaginary roots
- EMI, interest & monthly amortization calculator
- Electricity consumption bill using slabs
- Grade evaluation with combined logical expressions
- Loan eligibility check based on salary & CIBIL
- Multi-condition eligibility (job application screening)
- Age difference calculator using expressions
- Parse mathematical expression using Math functions
- Evaluate trigonometric expressions (sin, cos, tan)
- BMI category classification using chained ternary
- Discount calculation with multiple slabs
- Validate triangle using sum of angles
- Calculate Compound Annual Growth Rate (CAGR)
- Find leap year with combined operators
- Convert days into years + months + days logically
- Evaluate salary after tax based on slabs
- Compute & display MPG and fuel efficiency
- Compare two floats precisely (epsilon-based)
- Calculate Speed = Distance / Time + unit handling
- Bank interest vs inflation comparison program
- Demonstrate short-circuit behavior in logical operators
- Cricket run rate & required run rate calculator
- Number Based Programs
- Check Sum Program
- SUPERSPY Program
- EvenPal Program
- Duck Number Program
- EvenPal Program
- Student Range Program
- Tech Number Program
- Pronic Number
- Deviation Program
- Spy Number Program
- Sum of Prime Numbers Program
- Niven Number Program
- Menu Driven - Factors/Factorial Program
- Special Two-digit Number Program
- International Standard Book Number (ISBN) Program
- Piglatin Program
- Menu Driven - Composite Number / Smallest digit in Number Program
- Income Tax Calculation Program
- Menu Driven - Fibonacci / Sum of Digits Program
- STD (Subscriber Trunk Dialing) Codes Program
- Special Number Program
- Ticket Discount Program
- Menu Driven - Prime Number / Automorphic Number Program
- Electronic Shop Discount Program
- Menu driven - BUZZ Number / GCD Program
- Exam Results Program
- Tax Computation Program
- Menu Driven - Palindrome / Perfect Number Program
- Salary Calculation Program
- Maximum & Minimum Program
- Menu Driven - Temperature Program
- Square root of sum of squares of all elements - NORM
- Menu Driven Program
- Menu Driven Program
- Menu Driven Program - Pattern & Series
- Menu Driven Program - Generate Unicode, Pattern
- Menu Driven - Bank Deposit Program
- String Programs
- Super String Program
- String to Uppercase Program
- Gmail ID Validation Program
- Count the Vowels Program
- Print Number of Digits, Alphabets and Special Characters Program
- UpperCase Conversion Program
- Pair of Vowels Program
- Count Letters in a Sentence Program
- Proper Case Sentence Program
- Abbreviation Program
- Palindrome or Special Word Program
- Assign Full Path and File name Program
- Double Letter Sequences in a String Program
- New Word by replacing Vowels with the next Character Program
- Frequency of Characters in a String Program
- Longest Word Program
- Reverse Uppercase & Lowercase in String Program
- Count of a word in String Program
- Palindrome Program
- Class and Object Programs
- Class & Object Based Program - CloudStorage
- Class & Object Based Program - Bank
- Class & Object Based Program - Courier Service Program
- Class & Object Based Program - Eshop
- Class & Object Based Program - Student Stream Allocation
- Class & Object Based Program - Hotel Bill Calculation
- Class & Object Based Program - Cab Service
- Class & Object Based Program
- Class Overload Program
- Class & Object Based Program
- Class & Object Based Program - Railway Ticket
- Class & Object Based Program - Electric Bill
- Class & Object Based - Taxi Meter Program
- Class & Object - Book Fair Program
- Class & Object - Parking Lot Program
- Class & Object - Movie Magic Program
- Class & Object - FruitJuice Program
- Class & Object - Library Program
- Class & Object - Mobike Program
- Class & Object - Student Marks Program
- Overloading Programs
- Menu Driven Program - Overload Method
- Method Overloading Program
- Method Overloading Program
- Menu Driven Program - Overload Method
- Menu Driven Program - Overload Method
- Method Overloading - Pattern & Series
- Method Overloading
- Series Overload Program
- Function Overloading - Volume Program
- Function Overload - String Program
- Function Overloading - Sum of Series Program
- Function Overloading String Based Program
- Function Overloading - Area Program
- Function Overloading - Sum of Series Program
- Function Overloading - Polygon Program
- Function Overloading - Compare Integers, Characters, Strings Program
- Function Overloading - Volume Program
- Array Programs
- Binary Search Program
- Binary Search Program
- Sum of Row in Array Program
- Diagonal Array Program
- Selection Sort Program
- Selection Sort Program
- Sum of Even & Odd Elements in Array Program
- Bubble Sort Program
- Linear Search Program
- Sum of Single and Double Digit Number in Array Program
- Bubble Sort Program
- Student Range Program
- Binary Search Technique Program
- Double Dimensional Array - Diagonal Sum
- Arrange Student details using Selection Sort Method
- Sum of elements in Double Dimensional Array Program
- Sort Array Elements in Ascending Order using the Bubble Sort Technique Program
- Array Based Program - Largest Number, Smallest Number, Sum of Numbers Program
- Alphabet Sort - Selection Sort Techniques Program
- Largest & Smallest Integer in Array Program
- Sort Names in Array Program
- Two Different Arrays Program
- Array Based Student Result Program
- Arrange Names - Bubble Sort Technique Program
- Array Sort - Binary Search Program
- Descending Order Bubble Sort Program
- Descending Order - Selection Sort Program
- Binary Search Program
- Combine Two Arrays in Third Array Program
- Function Overloading - Number Calculation Program
- Sort String Bubble Sort Program
- Pattern Programs
- Menu Driven Program - Pattern
- Menu Driven - Pattern Program
- Pattern Program
- Menu Driven - Series Program
- Generate Triangle / Inverted Triangle Program
- Series Programs
- Sum of Series Program
- Sum of Series Program
- Menu Driven Program - Series Program
- Menu driven - Sum of Series Program
Java Programs
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Class & Object Based Program - Cab Service - Java Programs
A private cab service company provides service within the city at the following rates:
|
AC CAR |
NON AC CAR |
|
|
UPTO 5 KM |
₹150/- |
₹120/- |
|
BEYOND 5 KM |
₹10/- PER KM |
₹08/- PER KM |
Design a class CabService with the following description:
Member variables/data members:
String carType – to store the type of car (AC or NON AC)
double km – to store the kilometer travelled
double bill – to calculate and store the bill amount
Member methods:
CabService() – default constructor to initialize data members. String data members to “” and double data members to 0.0.
void accept() – to accept carType and km (using Scanner class only).
void calculate() – to calculate the bill as per the rules given above.
void display() – to display the bill as per the following format
CAR TYPE:
KILOMETER TRAVELLED:
TOTAL BILL:
Create an object of the class in the main() method and invoke the member methods.
import java.util.Scanner; class CabService{ String carType; double km; double bill; public CabService(){ carType = ""; km = 0.0; bill = 0.0; } public void accept(){ Scanner in = new Scanner(System.in); System.out.print("Car type: "); carType = in.nextLine().toUpperCase(); System.out.print("Distance travelled: "); km = Double.parseDouble(in.nextLine()); } public void calculate(){ if(km <= 5){ if(carType.startsWith("AC")){ carType = "AC CAR"; bill = 150.0; } else if(carType.startsWith("NON")){ carType = "NON AC CAR"; bill = 120.0; } } else{ if(carType.startsWith("AC")){ carType = "AC CAR"; bill = 150.0 + (km - 5) * 10; } else if(carType.startsWith("NON")){ bill = 120.0 + (km - 5) * 8; carType = "NON AC CAR"; } } } public void display(){ System.out.println("CAR TYPE: " + carType); System.out.println("KILOMETER TRAVELLED: " + km); System.out.println("TOTAL BILL: " + bill); } public static void main(String[] args) { CabService obj = new CabService(); obj.accept(); obj.calculate(); obj.display(); } }
Output
OUTPUT 1: Car type: AC Distance travelled: 20 CAR TYPE: AC CAR KILOMETER TRAVELLED: 20.0 TOTAL BILL: 300.0 OUTPUT 2: Car type: NON AC Distance travelled: 4 CAR TYPE: NON AC CAR KILOMETER TRAVELLED: 4.0 TOTAL BILL: 120.0
