Java Swing JFileChooser example

JFileChooser is a quick and easy way to prompt the user to choose a file or a file saving location. Below are some simple examples of how to use this class.

Date: 2019-08-17 View: 1542

In Java, you can use == operator to compare Enum value.

Date: 2019-08-17 View: 2046

A complete Java builder pattern example.

Date: 2019-08-17 View: 1437

Few Java 8 examples to show you how to convert a List of objects into a Map, and how to handle the duplicated keys.

Date: 2019-08-17 View: 2286

Some Java examples to show you how to override equals and hashCode.

Date: 2019-08-17 View: 1270

Windows 10 Edit Hosts file

In this tutorial, we will show you how to add a mapping of IP addresses to host names in the Windows Hosts file.

Date: 2019-08-17 View: 1938

In this article, we will show you how to use Java 8 Stream Collectors to group by, count, sum and sort a List.

Date: 2019-08-17 View: 2622

Windows 10 Can not create new folder

Suddenly, my Windows 10 is unable to create new folder:

Date: 2019-08-17 View: 1619

In Java 8, Stream cannot be reused, once it is consumed or used, the stream will be closed.

Date: 2019-08-17 View: 2907

In Java 8, you can either use Arrays.stream or Stream.of to convert an Array into a Stream.

Date: 2019-08-17 View: 2685

In Java 8, Stream can hold different data types, for examples:

Date: 2019-08-17 View: 2033

Some Java reflection API examples.

Date: 2019-08-17 View: 1475

Some MongoDB examples to show you how to perform group by, count and sort query.

Date: 2019-08-17 View: 1470

In Logback, it is easy to set a log file name programmatically :

Date: 2019-08-17 View: 2409

In Gradle, you can declare the JUnit dependency like this:

Date: 2019-08-17 View: 1423