Imagine that your typical Java array is an Excel spreadsheet. Were that the case, you’d have created a table with just a single column. We might consider it a “one dimensional” database, in ...

To find the size of a Java array, query an array’s length property. The Java array size is set permanently when the array is initialized. The size or length count of an array in Java includes both ...

Leverage the NDArray from Deep Java Library (DJL) to write your NumPy code in Java and apply NDArray into a real-world application.

Have you ever wondered how Java's String methods, keywords, and operators process comparisons in a String pool? Here's your chance to find out!

Creating a Java string Below is one simple syntax for creating a Java string. String greeting = "Hello world!"; In this example, "Hello world!" is a string literal, which is a series of characters ...

The example code below shows how to use Java’s DirectoryStream in a method to list the files of a directory: public Set<String> listFilesUsingDirectoryStream(String dir) throws IOException { ...

A look at some of the best database and RDBMS tools for Java software developers. Learn more about Java and database programming.