Java Programming Exercises, Practice, Solution
Java Exercises
Java is the foundation for virtually every type of networked application and is the global standard for developing and delivering embedded and mobile applications, games, Web-based content, and enterprise software. With more than 9 million developers worldwide, Java enables you to efficiently develop, deploy and use exciting applications and services.
The best way we learn anything is by practice and exercise questions. Here you have the opportunity to practice the Java programming language concepts by solving the exercises starting from basic to more complex exercises. A sample solution is provided for each exercise. It is recommended to do these exercises by yourself first before checking the solution.
Hope, these exercises help you to improve your Java programming coding skills. Currently, following sections are available, we are working hard to add more exercises .... Happy Coding!
List of Java Exercises:
- Basic Exercises Part-I [ 150 Exercises with Solution ]
- Basic Exercises Part-II [ 99 Exercises with Solution ]
- Data Types Exercises [ 15 Exercises with Solution ]
- Conditional Statement Exercises [ 32 Exercises with Solution ]
- Java Enum Types Exercises [ 5 Exercises with Solution ]
- Exercises on handling and managing exceptions in Java [ 7 Exercises with Solution ]
- Array [ 77 Exercises with Solution ]
- Java Inheritance Exercises [ 9 exercises with solution ]
- Java Abstract Classes Exercises [ 4 exercises with solution ]
- Java Thread Exercises [7 exercises with solution]
- Java Lambda expression Exercises [ 25 exercises with solution ]
- Java Generic Methods Exercises [ 7 exercises with solution ]
- Object-Oriented Programming [ 19 Exercises with Solution ]
- Java Interface Exercises [ 4 exercises with solution ]
- Java Encapsulation Exercises [ 7 exercises with solution ]
- Java Polymorphism Exercises [ 6 exercises with solution ]
- Stack [ 29 Exercises with Solution ]
- String [ 107 Exercises with Solution ]
- Streams [ 8 Exercises with Solution ]
- Date Time [ 44 Exercises with Solution ]
- Methods [ 23 Exercises with Solution ]
- Numbers [ 28 Exercises with Solution ]
- Input-Output-File-System [ 18 Exercises with Solution ]
- Collection [ 126 Exercises with Solution ]
- Math [ 27 Exercises with Solution ]
- Sorting [ 19 Exercises with Solution ]
- Search [ 7 Exercises with Solution ]
- Regular Expression [ 30 Exercises with Solution ]
- More..
Note: If you are not habituated with Java programming you can learn from the following :
More to Come !
Popularity of Programming Language Worldwide, June 2023 compared to a year ago:
| Rank | Change | Language | Share | Trend |
|---|---|---|---|---|
| 1 | Python | 27.66 % | +0.2 % | |
| 2 | Java | 16.16 % | -1.3% | |
| 3 | Javascript | 9.44 % | -0.2% | |
| 4 | C# | 6.79 % | -0.5% | |
| 5 | C/C++ | 6.6 % | -0.1 % | |
| 6 | PHP | 5.04 % | -0.4 % | |
| 7 | R | 4.17% | -0.3% | |
| 8 | TypeScript | 3.11 % | +0.5% | |
| 9 | Swift | 2.38 % | +0.2% | |
| 10 |  |
Rust | 2.24% | +0.8% |
| 11 |  |
Objective-C | `2.07% | -0.1% |
| 12 | |
Go | 2.02% | +0.3% |
| 13 | |
Kotlin | 1.82 % | +0.1% |
| 14 | |
Matlab | 1.55 % | -0.2% |
| 15 | Ruby | 1.12% | +0.2% | |
| 16 | |
Ada | 0.97 % | +0.3 % |
| 17 | |
Powershell | 0.94 % | +0.2 % |
| 18 | |
VBA | 0.87 % | -0.0 % |
| 19 | |
Dart | 0.82 % | -0.0 % |
| 20 | |
Lua | 0.64 % | +0.1 % |
| 21 | |
Scala | 0.59 % | -0.1 % |
| 22 | |
Abap | 0.53 % | +0.1 % |
| 23 | |
Visual Basic | 0.48 % | -0.1 % |
| 24 | |
Julia | 0.42 % | +0.0 % |
| 25 | |
Groovy | 0.42 % | +0.0 % |
| 26 | |
Cobol | 0.41 % | +0.2 % |
| 27 | |
Perl | 0.35 % | +0.1 % |
| 28 | |
Haskell | 0.24 % | -0.0 % |
| 29 | Delphi/Pascal | 0.14 % | +0.1 % |
Source : https://pypl.github.io/PYPL.html
TIOBE Index for June 2023
| June 2023 | June 2022 | Change | Programming Language | Ratings | Change |
|---|---|---|---|---|---|
| 1 | 1 | Python | 12.46% | +0.26% | |
| 2 | 2 | C | 12.37% | +0.46% | |
| 3 | 4 | |
C++ | 11.36% | +1.73% |
| 4 | 3 | |
Java | 11.28% | +0.81% |
| 5 | 5 | C# | 6.71% | +0.59% | |
| 6 | 6 | Visual Basic | 3.34% | -2.08% | |
| 7 | 7 | JavaScript | 2.82% | +0.73% | |
| 8 | 13 | |
PHP | 1.74% | +0.49% |
| 9 | 8 | |
SQL | 1.47% | -0.47% |
| 10 | 9 | |
Assembly language | 1.29% | -0.56% |
| 11 | 12 | |
Delphi/Object Pascal | 1.26% | -0.07% |
| 12 | 24 | |
MATLAB | 1.11% | +0.48% |
| 13 | 25 | |
Scratch | 1.02% | +0.43% |
| 14 | 15 | |
Go | 1.00% | -0.02% |
| 15 | 26 | |
Fortran | 0.99% | +0.44% |
| 16 | 11 | |
Classic Visual Basic | 0.96% | -0.36% |
| 17 | 16 | |
R | 0.94% | -0.04% |
| 18 | 19 | |
Ruby | 0.94% | +0.19% |
| 19 | 10 | |
Swift | 0.93% | -0.62% |
| 20 | 27 | |
Rust | 0.91% | +0.38% |
Source : https://www.tiobe.com/tiobe-index/
List of Exercises with Solutions :
- HTML CSS Exercises, Practice, Solution
- JavaScript Exercises, Practice, Solution
- jQuery Exercises, Practice, Solution
- jQuery-UI Exercises, Practice, Solution
- CoffeeScript Exercises, Practice, Solution
- Twitter Bootstrap Exercises, Practice, Solution
- C Programming Exercises, Practice, Solution
- C# Sharp Programming Exercises, Practice, Solution
- PHP Exercises, Practice, Solution
- Python Exercises, Practice, Solution
- R Programming Exercises, Practice, Solution
- Java Exercises, Practice, Solution
- SQL Exercises, Practice, Solution
- MySQL Exercises, Practice, Solution
- PostgreSQL Exercises, Practice, Solution
- SQLite Exercises, Practice, Solution
- MongoDB Exercises, Practice, Solution
[ Want to contribute to Java exercises? Send your code (attached with a .zip file) to us at w3resource[at]yahoo[dot]com. Please avoid copyrighted materials.]
Do not submit any solution of the above exercises at here, if you want to contribute go to the appropriate exercise page.
Java: Tips of the Day
Difference between jar and war in Java
From Java Tips: Difference between ear jar and war files:
These files are simply zipped files using the java jar tool. These files are created for different purposes. Here is the description of these files:
- .jar files: The .jar files contain libraries, resources and accessories files like property files.
- .war files: The war file contains the web application that can be deployed on any servlet/jsp container. The .war file contains jsp, html, javascript and other files necessary for the development of web applications.
Ref: https://bit.ly/31hFDog
- Weekly Trends
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- JavaScript HTML Form Validation
- Java Collection Exercises
- SQL COUNT() function
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- JavaScript functions Exercises
- Python Tutorial
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- SQL Cross Join
- C# Sharp Array Exercises
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