Learn how to get the character at a given position of a String in Java.

Learn how to use the keySet(), entrySet() and values() methods of the Map interface in Java.

Learn how to use Java's super keyword to reference the parent class.

A quick and practical guide to converting objects into byte arrays in Java.

A set of popular concurrency-related Java interview questions and of course answers.

Learn how to convert a Double to a String while removing the fractional digits using a number of different approaches.

Learn several ways to convert a List into a Map using Custom Suppliers.

A quick and practical guide to getting maximum/minimum element from a list or a collection.

Overview of several ways of handling the common problem of rounding a decimal number in Java

Learn about symbolic links, and how to create them with Java

Learn how to execute SQL queries using the batching features of JDBC.

Learn how to check the primality of the number using Java.

Learn how adaptive sizing works and evaluate the difference between max, used, and committed sizes

Learn how to find the longest substring without repeating a character in Java.

Interested to learn about mTLS? Check our article explaining how to execute mTLS calls using Java.

Learn about State design pattern and its pros and cons, explained with a clear and easy to understand example

Hibernate Reactive goes GA, caching, Record serialization, no more Dockerfiles with Paketo, and embracing mob programming!

Learn different options for splitting an input string by multiple delimiters using regular expressions, Google Guava, and Apache Commons

Learn different approaches for removing the beginning and ending double quotes from a String in Java.