Java Calendar by Examples

In this Java core tutorial we learn how to use the java.util.Calendar class in Java via different example codes.

Java Calendar using Calendar.Builder by Examples

In this Java core tutorial we learn how to create Calendar objects using the java.util.Calendar.Builder class via different Java example programs.

Java Date by Examples

In this Java core tutorial we learn how to use the java.util.Date class by different Java example programs.

Spring Boot Web with JSP

In this Spring Boot web tutorial we learn step by step how to setup a Spring Boot project with JavaServer Pages (JSP) and Tomcat embedded.

Java Encode and Decode Hex String using Apache Commons Codec

In this Java tutorial we learn how to use Hex class of Apache Commons Codec library to encode byte[] array to hexadecimal String and decode hexadecimal String to byte[] array.

Java Encode and Decode URL Query String using Apache Commons Codec

In this Java tutorial we learn how to encode a String to URL safe form and decode the URL safe string to original form using the URLCodec class of Apache Commons Codec library.

Java SHA-512/256 Hash using Apache Commons Codec

In this Java tutorial we learn how to calculate the SHA-512/256 hash in Java 9 or higher using the DigestUtils class of Apache Commons Codec library.

Java SHA-512/224 Hash using Apache Commons Codec

In this Java tutorial we learn how to calculate the SHA-512/224 hash in Java 9 or higher using the DigestUtils class of Apache Commons Codec library.

Java SHA3-512 Hash using Apache Commons Codec

In this Java tutorial we learn how to calculate the SHA3-512 hash in Java 9 or higher using the DigestUtils class of Apache Commons Codec library.

Java SHA3-384 Hash using Apache Commons Codec

In this Java tutorial we learn how to calculate the SHA3-384 hash in Java 9 or higher using the DigestUtils class of Apache Commons Codec library.