Spring Boot Log4j 2 example

In this tutorial, we will show you how to use Apache Log4j 2 in Spring Boot framework.

Date: 2019-08-11 View: 1315

SLF4J Logback Tutorial

A simple SLF4J with Logback example.

Date: 2019-08-11 View: 1466

In Java, there are 3 ways to loop or iterate a HashMap

Date: 2019-08-11 View: 1235

In IntelliJ IDEA, Maven builds a project, and hits the following warning message?

Date: 2019-08-11 View: 1738

In Java, we can use Files.readAllBytes to read a file.

Date: 2019-08-11 View: 1395

In Java, we can use Files.write and StandardOpenOption.APPEND to append text to a file.

Date: 2019-08-11 View: 1368

In Java, we can use Files.write (Since JDK 7) to create and write to a file, one line, simple and nice. See the following examples :

Date: 2019-08-11 View: 1284

In Java, there are few ways to read a file.

Date: 2019-08-11 View: 1228

Java How to send Email

To send email in Java, we need JavaMail

Date: 2019-08-11 View: 1322

Spring Boot How to send email via SMTP

In this tutorial, we will show you how to send email via SMTP in Spring Boot.

Date: 2019-08-11 View: 1217

Spring Read file from resources folder

In Spring, we can use ClassPathResource or ResourceLoader to get files from classpath easily.

Date: 2019-08-11 View: 1303

A popular error message for new Java users.

Date: 2019-08-11 View: 1361

javac is not recognized as an internal or external command, operable program or batch file

A popular common error for new Java users.

Date: 2019-08-11 View: 1409

In Java, for primitive types, parameters are pass-by-value; For object types, object reference is pass-by-value, however, Java is allowed to modify object’s fields via object reference.

Date: 2019-08-11 View: 1222

A simple List.add() and hits the following java.lang.UnsupportedOperationException

Date: 2019-08-11 View: 1190