apache commons | Baeldung - Part 7

Convert String to String Array

Explore how to convert a String into a String array (String[])

Capitalize the First Letter of a String in Java

Learn how to convert a given string’s first character to upper case.

Validating URL in Java

Learn two different methods for validating a URL in Java.

Convert a List to a Comma-Separated String

Learn four ways to convert a List of Strings to a comma-separated String.

Generate the MD5 Checksum for a File in Java

A quick and practical guide to generating the MD5 checksum for files in Java.

Java Weekly, Issue 452

All about the G1 collector this week. Oh, and Java 19 is close – less than a month away. Good summer 🙂

How to Parse an INI File in Java

Look at a couple of libraries that can help us parse INI files in Java

Reading JSON From a URL in Java

How to read JSON from a URL using core java libraries and third-party libraries.

Permutations of a String in Java

Learn how we to easily create permutations in Java using third-party libraries.

Named Placeholders in String Formatting

Learn how to replace parameters in template-based strings from a set of values

How to Check Whether an Integer Exists in a Range with Java

Learn how to check whether an integer exists within the bounds of a range.

Remove Whitespace From a String in Java

Explore common scenarios of removing whitespace from a String in Java

How to Truncate a String in Java

Learn how to truncate a String in Java.

Illegal Character Compilation Error

Learn about the Illegal Character Compilation Error and how to avoid it.

Convert Between boolean and int in Java

Different ways to convert a boolean to an integer.

Convert Byte Size Into a Human-Readable Format in Java

Explore how to convert file size in bytes into a human-readable format in Java

Find the Difference Between Two Sets

Learn how to find the asymmetric and symmetric differences between two Set objects through examples

JDBC Connection Status

In this article, we’ll discuss some aspects of the JDBC connection status.

Computing an X509 Certificate’s Thumbprint in Java

A quick and practical guide to computing an X509 certificate’s thumbprint in Java.

Generating a Java String of N Repeated Characters

Producing a string out of repeating a character or sequence can be done a variety of ways. We look at a few methods, and compare them for readability and efficiency.