JAVA-Fantasy

A collection of 150+ Java Codes as a webpage

Made with 🧡 by Mainak Chaudhuri

Brief Note on Java

Java is a class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible. It is a general-purpose programming language intended to let application developers write once, run anywhere (WORA),meaning that compiled Java code can run on all platforms that support Java without the need for recompilation. Java applications are typically compiled to bytecode that can run on any Java virtual machine (JVM) regardless of the underlying computer architecture. The syntax of Java is similar to C and C++, but has fewer low-level facilities than either of them. The Java runtime provides dynamic capabilities (such as reflection and runtime code modification) that are typically not available in traditional compiled languages. As of 2019, Java was one of the most popular programming languages in use according to GitHub,particularly for client-server web applications, with a reported 9 million developers.

Java was originally developed by James Gosling at Sun Microsystems (which has since been acquired by Oracle) and released in 1995 as a core component of Sun Microsystems' Java platform. The original and reference implementation Java compilers, virtual machines, and class libraries were originally released by Sun under proprietary licenses. As of May 2007, in compliance with the specifications of the Java Community Process, Sun had relicensed most of its Java technologies under the GNU General Public License. Oracle offers its own HotSpot Java Virtual Machine, however the official reference implementation is the OpenJDK JVM which is free open source software and used by most developers and is the default JVM for almost all Linux distributions.

Today, Java is taught as a major programming language in many schools (mostly in the schools under ICSE board). It is quite popular amongst developers and is widely used in server-based and server-less utilities. Java plays a very important role in DevOps.

Given below are some basic beginner friendly java codes with logic explanations, for practice and curriculum.

Basic Programs

1. Factorials
2. Fibonacci
3. Armstrong
4. Prime
5. Palindrome
6. ASCII 1
7. ASCII 2
8. ASCII 3
9. Random

Patterns (Numerical)

1. Number Pattern 1
2. Number Pattern 2
3. Number Pattern 3
4. Number Pattern 4
5. Number Pattern 5
6. Number Pattern 6
7. Number Pattern 7
8. Number Pattern 8
9. Number Pattern 9
10. Number Pattern 10
11. Number Pattern 11
12. Number Pattern 12
13. Number Pattern 13
14. Number Pattern 14
15. Number Pattern 15
16. Number Pattern 16
17. Number Pattern 17
18. Number Pattern 18
19. Number Pattern 19
20. Pascal's Triangle

Patterns (Character)

1. Charater Pattern 1
2. Charater Pattern 2
3. Charater Pattern 3
4. Charater Pattern 4
5. Charater Pattern 5
6. Charater Pattern 6
7. Charater Pattern 7
8. Charater Pattern 8
9. Charater Pattern 9
10. Charater Pattern 10
11. Charater Pattern 11
12. Charater Pattern 12
13. Charater Pattern 13
14. Charater Pattern 14
15. Charater Pattern 15
16. Charater Pattern 16

Numeric Programs

1. ATM
2. Autobiographical Number
3. Automorphic Number
4. Bouncy Number
5. Buzz Number
6. Duck Number
7. Emirp Number
8. Evil Number
9. Fascinating Number
10. Greatest Common Divisor
11. ISBN Number
12. Keith Number
13. Krishnamurthy Number
14. Mystery Number
15. Neon Number
16. Nth Prime Number
17. Number to Word
18. Perfect Square
19. Peterson's Number
20. Reverse Number
21. Smith Number
22. Sphenic Number
23. Spy Number
24. Strontio Number
25. Sunny Number
26. Tech Number
27. Xylem Phloem Number

Array Programs

1. Array Program 1
2. Array Program 2
3. Array Program 3
4. Array Program 4
5. Array Program 5
6. Array Program 6
7. Array Program 7
8. Array Program 8
9. Array Program 9
10. Array Program 10
11. Array Program 11
12. Array Program 12
13. Array Program 13
14. Array Program 14
15. Array Program 15
16. Array Program 16
17. Array Program 17
18. Array Program 18
19. Array Program 19
20. Array Program 20
21. Array Program 21
22. Array Program 22
23. Array Program 23

Matrix Programs

1. Matrix Addition
2. Matrix Multiplication
3. Matrix Substraction
4. Matrix Comparison
5. Lower Triangular Matrix
6. Higher Triangular Matrix
7. Odd-even Frequency
8. Matrix Product
9. Row Column Sum
10. Transpose Matrix
11. Identity Matrix
12. Sparse Matrix
13. Transpose Check

String Programs

1. String Program 1
2. String Program 2
3. String Program 3
4. String Program 4
5. String Program 5
6. String Program 6
7. String Program 7
8. String Program 8
9. String Program 9
10. String Program 10
11. String Program 11
12. String Program 12
13. String Program 13
14. String Program 14
15. String Program 15
16. String Program 16
17. String Program 17
18. String Program 18
19. String Program 19
20. String Program 20

Sorting and Searching

1. Linear Search
2. Binary Search
3. Bubble Sort
4. Selection Sort
5. Insertion Sort

Conversion Programs

1. String to Integer
2. Integer to String
3. String to Long
4. Long to String
5. String to Float
6. Float to String
7. String to Double
8. Double to String
9. String to Date
10. Date to String
11. String to Char
12. Char to String
13. String to Object
14. Object to String
15. Integer to Long
16. Long to Integer
17. Integer to Double
18. Double to Integer
19. Character to Integer
20. Integer to Character
21. String to Boolean
22. Boolean to String
23. Date to Timestamp
24. Timestamp to Date
25. Binary to Decimal
26. Decimal to Binary
27. Hexadecimal to Decimal
28. Decimal to Hexadecimal
29. Octal to Decimal
30. Decimal to Octal

Linked List Programs

1. Simple Linked List
2. Singly Linked List
3. Count Nodes
4. Reverse Linked List
5. Delete Starting Node
6. Delete From Middle
7. Delete End Node
8. Palindrome Checklist
9. Minimum and Maximum
10. Insert in Middle
11. Insert at Start
12. Insert at End
13. Remove Duplicate Nodes
14. Search Linked List