SomeJavaGuy questions

SomeJavaGuy answers

• Oracle SQL aggregate rows into column listagg with condition
• How to specify the number of alphabets (and not blank spaces) to include in a substring?
• Java Regex How to Find if String Contains Characters but order is not a matter
• Download a file while also updating a JProgressBar
• How can I "retry" a try-catch?
• Java - boxing integer - why it return true if should return false
• Regex validating csv strings
• how to run Resultset.next() twice?
• Using quicksort on a string array
• What is wrong with this Java GUI code?