Joop Eggen questions

Joop Eggen answers

• How to use Prepared Statement for Transaction?
• Record manipulation in flat files in Java
• Updating an ArrayList
• Map replaced all the same key value of list object
• Putting a short into 2 bytes of string
• Loading a file image in a war project
• Hardcoding values vs. reading from file
• (How) is it possible to catch an exception in a Java ternary operator statement?
• Jackson-XML. How can I ignore an XML attribute?
• What is a use case for an unordered Binary Tree?