Installation
For easy installation use JAVA SDK which you can download from https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
Can I use the IDE without JAVA SDK?
No, you must install JAVA SDK to your system.
Setup
Using Maven Reference: https://mvnrepository.com/artifact/com.heidelpay.payment/heidelpayJava
<dependency>
<groupId>com.heidelpay.payment</groupId>
<artifactId>heidelpayJava</artifactId>
<version>${latest-version}</version>
</dependency>