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Java

★ 73 Open GitHub ↗

Includes programs written in Java. You are welcome to contribute here!

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# Java
## What does this repository contain?
This is a beginner-friendly repository which features programs in Java.

## Can I contribute?
Yes! :smile: you can definitely contribute!
The following are some of the things you can do - 
1. If you have a program written in Java that is not in the repository you can open up a PR. You can also open up a PR if you have another way of implementing a concept in the repo.
2. Also, if you can see something wrong (maybe like an error or something), you can open up a PR.
3. Another suggestion is if you can think of a creative way to explain any concept using markdown, you are welcome to contribute!

## How can I contribute?
It is very easy to contribute, you may follow these steps - 
1. Fork this repository
2. Make changes/ add things (if adding a new program please check the program list below to see if the program hasn't been implemented already)
3. Add a comment at the top of your program describing what it does (e.g. "Program to demonstrate abstract classes in Java")
4. If you add a new program, update the list of programs in the readme file
5. Make sure to merge the latest master branch into your feature branch to avoid conflicts
6. Open up a PR. It will be merged after review.

## Programs:
1. [Abstract Class](https://github.com/PrajaktaSathe/Java/blob/main/Programs/abstractClass.java) - Program to demonstrate abstract classes in Java
2. [Rectangle Area](https://github.com/PrajaktaSathe/Java/blob/main/Programs/areaRect.java) - Calculates area of a rectangle
3. [Arithmetic exceptions](https://github.com/PrajaktaSathe/Java/blob/main/Programs/arithExceptions.java) - Program to show Arithmetic Exception Error handling
4. [Array Lists](https://github.com/PrajaktaSathe/Java/blob/main/Programs/arrayLists.java) - Program to show list of strings in java
5. [Array Out Of Bounds](https://github.com/PrajaktaSathe/Java/blob/main/Programs/arrayOutOfBounds.java) - Program to show ArrayOutOfBoundsException Error handling
6. [Bank System](https://github.com/PrajaktaSathe/Java/blob/main/Programs/bankSystem.java) - Using concepts of object-oriented programming develop solution for banking system (create account, deposit money, withdraw etc.)
7. [Book Shop](https://github.com/PrajaktaSathe/Java/blob/main/Programs/bookShop.java) - Class for book shop inventory management-
8. [Bubble Sort](./Programs/BubbleSort.java) - Program to sort an array in Java (using bubble sort)
9. [Calculator](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Calculator.java) - Calculator for basic math operations
10. [Circular Queue](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Circular_Queue.java) - Demonstrates implementation of a circular queue

11. [Complex Nums Ops](https://github.com/PrajaktaSathe/Java/blob/main/Programs/ComplexNumsOps.java) - Program to demonstrate operations on complex numbers in Java
12. [Constructors](https://github.com/PrajaktaSathe/Java/blob/main/Programs/constructors.java) - Program to demonstrate the use of constructors in Java
13. [Derived Constructor](https://github.com/PrajaktaSathe/Java/blob/main/Programs/derivedConstructor.java) - Program to demonstrate the order of constructor call
14. [EduEmpDB](https://github.com/PrajaktaSathe/Java/blob/main/Programs/eduEmpDB.java) - Program to simulate maintainance of a database of emplooyees, showcases thw relationships between the classes
15. [Edu Institute](https://github.com/PrajaktaSathe/Java/blob/main/Programs/eduInstitute.java) - Program to simulate student registration to an educational institute
16. [Exc Handling](https://github.com/PrajaktaSathe/Java/blob/main/Programs/excHandling.java) - Program to demonstrate crete an ararylist and update, delete and view elements in the list
17. [Except Throw](https://github.com/PrajaktaSathe/Java/blob/main/Programs/excThrow.java) - Program to demonstrate handling of a NullPointerException
18. [factoflargenum](https://github.com/PrajaktaSathe/Java/blob/main/Programs/factoflargenum.java) - Program to demonstrate Factorial of Large numbers in Java using BigInteger
19. [fibo](https://github.com/PrajaktaSathe/Java/blob/main/Programs/fibo.java) - Program to fibonacci numbers until N
20. [For Loop](https://github.com/PrajaktaSathe/Java/blob/main/Programs/ForLoop.java) - Program to demonstrate the use of for loop

21. [Functional Interfaces](https://github.com/PrajaktaSathe/Java/blob/main/Programs/FunctionalInterfaces.java) - Program to demonstrate how to use the Function and BiFunction functional interfaces
22. [Gen Class Method](https://github.com/PrajaktaSathe/Java/blob/main/Programs/GenClassMethod.java) - Program to demonstrate method instanstiation in Java 
23. [gen Prog](https://github.com/PrajaktaSathe/Java/blob/main/Programs/genProg.java) - Demonstrates generic programming
24. [hello World](https://github.com/PrajaktaSathe/Java/blob/main/Programs/helloWorld.java) - Simple Java helloworld program 
25. [input](https://github.com/PrajaktaSathe/Java/blob/main/Programs/input.java) - Program to demostrate accepting an input in java
26. [Integers](https://github.com/PrajaktaSathe/Java/blob/main/Programs/integers.java) - Simple java program to compare integers with each other.
27. [Integer To Word](https://github.com/PrajaktaSathe/Java/blob/main/Programs/IntegerToWord.java) - This program converts numbers into its word counterparts.
28. [JavaC lasses](https://github.com/PrajaktaSathe/Java/blob/main/Programs/JavaClasses.java) - Program to demonstrate the use of classes and objects (basic)
29. [Largest Number](https://github.com/PrajaktaSathe/Java/blob/main/Programs/largestNum.java) - Program to demonstrate the use of if-else if-else statements
30. [Lists](https://github.com/PrajaktaSathe/Java/blob/main/Programs/list_1.java) - Shows array list of strings, integers and linked list for numbers
31. [Matrix Addition](https://github.com/PrajaktaSathe/Java/blob/main/Programs/MatrixAdd.java) - Program to add two matrices in Java

31. [Multiple Inheritance](https://github.com/PrajaktaSathe/Java/blob/main/Programs/MultipleInheritance.java) - Program to demonstrate multiple inheritance
32. [Nested Try](https://github.com/PrajaktaSathe/Java/blob/main/Programs/GenClassMethod.java) - Program to demonstrate a nested try..catch 
33. [Number To Roman](https://github.com/PrajaktaSathe/Java/blob/main/Programs/NumberToRoman.java) - Program to convert a number to roman numerals
34. [Overloading](https://github.com/PrajaktaSathe/Java/blob/main/Programs/overloading.java) - Program to demonstrate overloading in Java 
35. [PrimeNo](https://github.com/PrajaktaSathe/Java/blob/main/Programs/primeNumbers.java) - Program to find out the prime numbers in a given range in Java
36. [Square Every Digit](https://github.com/PrajaktaSathe/Java/blob/main/Programs/SquareEveryDigit.java) - This program finds the square of a number.
37. [Static Count](https://github.com/PrajaktaSathe/Java/blob/main/Programs/StaticCount.java) - Program to demonstrates static count
38. [Static Member Functions](https://github.com/PrajaktaSathe/Java/blob/main/Programs/StaticMemberFunctions.java) - Program to demonstrate the use of static member functions -
39. [Student Interface](https://github.com/PrajaktaSathe/Java/blob/main/Programs/StudentInterface.java) - Shows implementation of an interface
40. [Sum Of Array Nos](https://github.com/PrajaktaSathe/Java/blob/main/Programs/SumOfArrayNos.java) - Program to add all the numbers in an array

41. [Switch Case](https://github.com/PrajaktaSathe/Java/blob/main/Programs/SwitchCase.java) - Program to demonstrate switch case statements in Java
42. [This Pointer Explicit](https://github.com/PrajaktaSathe/Java/blob/main/Programs/ThisPointerExplicit.java) - Program to demonstrate 'this' pointer (explicit method)  
43. [This Pointer Implicit](https://github.com/PrajaktaSathe/Java/blob/main/Programs/ThisPointerImplicit.java) - Program to demonstrate the use of 'this' pointer
44. [TwoDArrays](https://github.com/PrajaktaSathe/Java/blob/main/Programs/TwoDArrays.java) - Program to demonstrate 2D arrays (Hard-coded)
45. [Wiggle Sorting](https://github.com/PrajaktaSathe/Java/blob/main/Programs/WiggleSorting.java) - Program to demonstrate sorting an array using wiggle sort
46. [Palindrome](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Palindrome.java)- Program to check whether the number entered by user is palindrome or not
47. [Binary Search](https://github.com/PrajaktaSathe/Java/blob/main/Programs/BinarySearch.java) - Program to demonstrate sbinary search algorithm
48. [Heap Sort](https://github.com/PrajaktaSathe/Java/blob/main/Programs/HeapSort.java) - Program that implements Heap Sort.
49. [Fibonacci Search](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Fibonacci.java) - Program that implements Fibonacci search.
50. [Tic Tac Toe](https://github.com/PrajaktaSathe/Java/blob/main/Programs/TicTacToe.java) - Program to play tic-tac-toe game with computer.
51. [Prim's Algorithm to find the MST of a Graph](https://github.com/PrajaktaSathe/Java/blob/main/Programs/PrimsAlgorithm.java) - Program that implements Prim's Algorithm 
52. [Interpolation search](https://github.com/PrajaktaSathe/Java/blob/main/Programs/InterpolationSearch.java) - Program that implements Interpolation search.
53. [Exponetional search](https://github.com/PrajaktaSathe/Java/blob/main/Programs/ExponentialSearch.java) - Program that implements Exponetional search.
54. [Exponetional search](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Soundex.java) - Program that implements Soundex algorithm.
54. [BFS](https://github.com/PrajaktaSathe/Java/blob/main/Programs/BFS.java) - For unweighted connected graph.
55. [DFS](https://github.com/PrajaktaSathe/Java/blob/main/Programs/DFS.java) - For disconnected graph use the approach for  checking connected components.
56. [Decimal to Binary](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Decimal_to_Binary.java) - Convert decimal to binary.
57. [Dijkstra](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Dijkstra.java) - Implements Dijkstra algorithm.
58. [Insertion Sort](https://github.com/PrajaktaSathe/Java/blob/main/Programs/InsertionSort.java) - Program that demonstrates insertion sort algorithm
59. [Selection Sort](https://github.com/PrajaktaSathe/Java/blob/main/Programs/SelectionSort.java) - Program that demonstrates selection sort algorithm
60. [Quick Sort](https://github.com/PrajaktaSathe/Java/blob/main/Programs/QuickSort.java) - Program that demonstrates quick sort algorithm
61. [Merge Sort](https://github.com/PrajaktaSathe/Java/blob/main/Programs/MergeSort.java) - Program that demonstrates merge sort algorithm
62. [Shell Sort](https://github.com/PrajaktaSathe/Java/blob/main/Programs/ShellSort.java) - Program that demonstrates shell sort algorithm
63. [Income Tax Calculator](https://github.com/PrajaktaSathe/Java/blob/main/Programs/IncomeTaxCalculator.java) - Income Tax Calculator program
64. [Bucket Sort](https://github.com/PrajaktaSathe/Java/blob/main/Programs/MergeSort.java) - Program that demonstrates Bucket sort algorithm
65. [Rock Paper Scissor](https://github.com/PrajaktaSathe/Java/blob/main/Programs/RockPaperScissor.java) - Rock paper Scissor Game Program
66. [Trie_Implementation](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Trie_Implementation.java) - Program that demonstrates the implementation of Trie Data Structure in Java.
67. [Ford Fulkerson](https://github.com/PrajaktaSathe/Java/blob/main/Programs/FordFulkerson.java) - Program that demonstrates the implementation of FordFulkerson algorithm.
68. [Kruskal](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Kruskal.java) - Program that demonstrates the implementation of Kruskal's algorithm.
69. [GSSArray](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Gssarray.java) - Program demonstrates the working of Growable Self Sorting Array.
70. [Ceiling Floor](https://github.com/PrajaktaSathe/Java/blob/main/Programs/CeilingFloor.java) - Program that demonstrates to find ceiling and floor number in an array
71. [Floyd Warshall Algorithm](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Floyd_Warshall_Algorithm.java) - Program for solving the All Pairs Shortest Path problem where to find shortest distances between every pair of vertices in a given edge weighted directed Graph.
72. [Find element with function interface](https://github.com/PrajaktaSathe/Java/blob/main/Programs/FindIndexValue.java) - To find element at a index using function interface
73. [Rabin-Karp Algorithm](https://github.com/PrajaktaSathe/Java/blob/main/Programs/RabinKarp.java) - Program that demonstrates Rabin-Karp algorithm used for pattern matching and string searches
74. [Bellman Ford Algorithm](https://github.com/PrajaktaSathe/Java/blob/main/Programs/BellmanFord.java) - Program that demonstrates Bellman Ford algorithm used to find the shortest path from a vertex to all other vertices of a weighted graph.
75. [Huffman Coding](https://github.com/PrajaktaSathe/Java/blob/main/Programs/HuffmanCoding.java) - Program that demonstrates Huffman Coding for data compression.
76. [ADT Fraction Program](https://github.com/PrajaktaSathe/Java/blob/main/Programs/ADTFractionApp.java) - Program to demontrate how to deal with numarators and denomenator
77. [Number Array without duplicate elements](https://github.com/PrajaktaSathe/Java/blob/main/Programs/NoDupArray.java) - Program to demontrate Number array without duplicate elements
78. [Depth First Search](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Gssarray.java) - Program demonstrates Depth First Search algorithm
79. [Breath First Search](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Gssarray.java) - Program demonstrates Breath First Search algorithm
80. [Number Of Digits](https://github.com/Raunak49/Java/blob/digits/NumberOfDigit.java) - Program demonstrates number of digits
81. [Circular integer Linkedlist](https://github.com/PrajaktaSathe/Java/tree/main/Programs/Circular%20Integer%20LinkedList) - Program shows circular linkedlist operations 
82. [SwitchingLetters](https://github.com/PrajaktaSathe/Java/tree/main/Programs/SwitchingLetters.java) - Program that demonstrates switching letters according to given indexes.
83. [Matrix Multiplication](https://github.com/siddhant2002/Java-1/blob/main/Programs/matrix/Matrix_Multiply.java) - Program to multiply two matrices.
84. [Sieve of Eratosthenes](https://github.com/siddhant2002/Java-1/blob/main/Programs/Sieve_Of_Eratosthenes.java) - Program to multiply two matrices.
85. [Reverse a LinkedList](https://github.com/siddhant2002/Java-1/blob/main/Programs/ReverseList.java) - Program to reverse a linkedList.
86. [Peg Solitaire](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Games/peg-solitaire/) - Peg Solitaire Game
87. [PrintPattern](https://github.com/arshcoder13/Java/blob/main/Programs/PrintPattern.java) - Print Pattern using Nested For Loops.
88. [Two Sum](https://github.com/siddhant2002/Java-1/blob/main/Programs/Two_Sum.java) - Sum of two elements which is equal to the target element.
89. [ToDO List](./Programs/ToDoList.java) - Simple ToDo list program.
90. [Ceaser Cipher Encryption](./Programs/CeaserCipher.java) - Encrypt Text with Ceaser Cipher Methodology.
91. [Recursion](./Programs/Check_If_Sorted.java) - Check if an Array is sorted using recursion.
92. [Patterns](./Programs/patterns) - Print out patterns in terminal (Steps included).
93. [Lucky Number](https://github.com/PrajaktaSathe/Java/blob/main/Programs/LuckyNumber.java) - Program to check if the given number is a Lucky Number or not.
94. [Knapsack Problem](https://github.com/PrajaktaSathe/Java/blob/main/Programs/KnapSack.java) - Program to solve the 0/1 Knapsack problem using Dynamic Programming Approach.
95. [Strassen's Multiplication](https://github.com/PrajaktaSathe/Java/blob/main/Programs/StrassensMultiplication.java) - Program to multiply two square matrices using Strassen's Multiplication method.
96. [Xor Palindrome](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Xorpalindrome.java) - Program/Solution to Xor Palindrome
97. [Streams API](./Programs/JavaStreams.java) - Program to demo the Java Stream API with String and Integer Lists.
98.[Stack](https://github.com/PrajaktaSathe/Java/blob/main/Stack.java)-Program to demo the stack implementation
99.[RotateLinkedList](https://github.com/PrajaktaSathe/Java/blob/main/Programs/RotateLinkedList.java)-Program to demo rotating a linked list
100. [ReverseString](https://github.com/PrajaktaSathe/Java/blob/main/ReverseString.java) -Program to reverse a String using the java method substring.
101.[Overriding](https://github.com/PrajaktaSathe/Java/blob/main/Programs/Overriding.java)-Program to demo overriding in java

# Contributors - 
## A big thank you to all our contributors!!!

Made with [contributors-img](https://contrib.rocks).

**Do ⭐ the repo if you find it useful!!** ☺😇☺

Java

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