Java 50 Programs

This repository is a project of practicing atleast 50 Java programming exercises covering various fundamental concepts.

1. Basics of Java & Syntax

• Print 'Hello, World!' to the console.
• Swap two numbers without using a temporary variable.
• Convert temperature from Celsius to Fahrenheit.
• Find the largest of three numbers.
• Print the ASCII value of a character entered by the user.

2. Control Statements

• Check if a number is even or odd.
• Find the largest of three numbers using if-else.
• Check if a year is a leap year.
• Write a calculator program using switch-case.
• Check if a character is a vowel or consonant.

3. Loops

• Find the factorial of a number.
• Generate the Fibonacci series up to n terms.
• Reverse a given number using a loop.
• Find the sum of digits of a number.
• Print all prime numbers between 1 and 100.

4. Arrays

• Find the largest element in an array.
• Sort an array in ascending order.
• Search for an element in an array (linear search).
• Reverse an array.
• Find the second largest number in an array.

5. Strings

• Check if a string is a palindrome.
• Count the number of vowels in a string.
• Find the frequency of characters in a string.
• Check if two strings are anagrams.
• Find the longest word in a sentence.

6. Methods

• Write a method to check if a number is prime.
• Write a method that returns the factorial of a number.
• Write a method that calculates the GCD of two numbers.
• Write a method to reverse a string.
• Write a method to check if a number is palindrome.

7. Object-Oriented Programming (OOP)

• Create a class 'Car' with attributes and methods.
• Create a 'BankAccount' class with deposit and withdraw methods.
• Implement constructor overloading in a class.
• Demonstrate method overriding with inheritance.
• Create a class hierarchy: Shape → Circle, Rectangle

8. Inheritance & Polymorphism

• Write a program demonstrating single inheritance.
• Write a program demonstrating hierarchical inheritance.
• Create a program to implement abstract class and abstract methods.
• Demonstrate multiple inheritance using interfaces.
• Create a program to demonstrate dynamic method dispatch.