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Java Programs

• Java Programs
• Java Programs - Home

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• Short Questions/Answers
• Short Questions/Answers - Part 1
• Short Questions/Answers - Part 2
• Short Questions/Answers - Part 3
• Short Questions/Answers - Part 4
• Short Questions/Answers - Part 5
• Short Questions/Answers - Part 6
• Short Questions/Answers - Part 7
• Short Questions/Answers - Part 8
• Short Questions/Answers - Part 9
• Short Questions/Answers - Part 10
• Short Questions/Answers - Part 11
• Short Questions/Answers - Part 12
• Short Questions/Answers - Part 13
• Short Questions/Answers - Part 14
• Short Questions/Answers - Part 15
• Short Questions/Answers - Part 16
• Short Questions/Answers - Part 17
• Short Questions/Answers - Part 18
• Short Questions/Answers - Part 19
• Short Questions/Answers - Part 20
• Short Questions/Answers - Part 21
• Short Questions/Answers - Part 22

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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

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• 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

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• 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

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• 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

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• 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

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• 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

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• 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

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• Pattern Programs

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• Menu Driven Program - Pattern
• Menu Driven - Pattern Program
• Pattern Program
• Menu Driven - Series Program
• Generate Triangle / Inverted Triangle Program

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• Series Programs
• Sum of Series Program
• Sum of Series Program
• Menu Driven Program - Series Program
• Menu driven - Sum of Series Program

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