[Source] iQQ uses Java language for cross-platform development, cross-platform QQ

iQQ is developed cross-platform using Java language and is based on Tencent's WebQQ 3.0 network protocol. It can be used to run on a variety of platforms supported by Java. The author is based on the Linux (Ubuntu 12.04) system, developed using the IDE NetBeans, and contributes to various program enthusiasts in the form of open source code, hoping to develop this project together.
iQQ is developed in Java language, and the Java runtime environment needs to be installed during runtime.

If the system has installed the Java runtime, click run.sh to run iQQ
Or iQQ.jar right-click to run it using the Java Runtime

Java Runtime Installation Method:

1. Debian, Ubuntu and other systems.
On the command line, type:
sudo apt-get install openjdk-6-jre

Or directly search for jre in the Software Center under Ubuntu and select the OpenJDK java 6 runtime

2. Fedora, OracleLinux, Red Hat Enterprise Linux and other systems.
On the command line, type:
su -c "yum install java-1.7.0-openjdk"