"#Kafka-Custom-Serializer-Example"
Menu File –> Import –> Maven –> Existing Maven Projects
Browse to your source code location
Click Finish button to finish the importing
Using commands in create-topics.sh (Linux) and create-topics.bat(Windows)
Open the CustomSerializerMain.java
Right click -> Run As -> Java Application or use the shortcut: Alt+Shift+x, j to start the main method
All the source code are described in: How To Write A Custom Serializer in Apache Kafka