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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:

Note: If you are not habituated with Java programming you can learn from the following :

More to Come !

Popularity of Programming Language
Worldwide, Sep 2022 compared to a year ago:

`
Rank Change Language Share Trend
1 Python 28.29 % -1.8 %
2 Java 17.31 % -0.7 %
3 Javascript 9.44 % -0.1 %
4 C# 7.04 % -0.1%
5 C/C++ 6.27 % -0.4 %
6 PHP 5.34 % -1.0 %
7 R 4.18 % +0.3 %
8 up arrow TypeScript 3.05 % +1.5 %
9 up arrow Go 2.16 % +0.6 %
10 Swift 2.11 % +0.5 %
11 down arrow Objective-C1.93% -0.0 %
12 down arrow Kotlin 1.88 % +0.0 %
13   Matlab 1.55 % +0.1 %
14 down arrow Rust 1.5 % +0.7 %
15 Ruby 1.13 % +0.1%
16 down arrow VBA 0.94 % -0.3 %
17 up arrow Dart 0.83 % +0.2 %
18 up arrow Ada 0.79 % +0.2 %
19 up arrow Scala 0.73 % +0.2 %
20 down arrow Visual Basic 0.62 % -0.1 %
21 up arrow Lua 0.54 % +0.1 %
22 down arrow Abap 0.53 % +0.0 %
23 up arrow Julia 0.41 % -0.0 %
24 down arrow Groovy 0.34 % -0.1 %
25 down arrow Cobol 0.32 % -0.0 %
26 up arrow Haskell 0.29 % +0.1 %
27 down arrow Perl 0.29 % -0.1 %
28 Delphi/Pascal 0.19 % +0.2 %

Source : https://pypl.github.io/PYPL.html

TIOBE Index for September 2022

Sep 2022 Sep 2021 Change Programming Language Ratings Change
1 2 up arrow Python 15.74% +4.07%
2 1 down arrow C 13.96% +2.13%
3 3 Java 11.72% +0.60%
4 4 C++ 9.76% +2.63%
5 5 C# 4.88% -0.89%
6 6 Visual Basic 4.39% -0.22%
7 7 JavaScript 2.82% +0.27%
8 8 Assembly language 2.49% +0.07%
9 10 up arrow SQL 2.01% +0.21%
10 9 down arrow PHP 1.68% -0.17%
11 24 up arrow Objective-C 1.49% +0.86%
12 14 up arrow Go 1.16% +0.03%
13 20 up arrow Delphi/Object Pascal 1.09% +0.32%
14 16 up arrow MATLAB 1.06% +0.04
15 17 up arrow Fortan 1.03% +0.02%
16 15 down arrow Swift 0.98% -0.09%
17 11 down arrow Classic Visual Basic 0.98% -0.55%
18 18   R 0.95% -0.02%
19 19 Perl 0.72% -0.06%
20 13 down arrow Ruby 0.66% -0.62%

Source : https://www.tiobe.com/tiobe-index/

List of Exercises with Solutions :

[ 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.



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Java: Tips of the Day

GenerateRandomInt

Generate a random integer between Integer.MIN_VALUE and Integer.MAX_VALUE.

public static int generateRandomInt() {
    return ThreadLocalRandom.current().nextInt();
}

Ref: https://bit.ly/3keywpH