Nikolay questions

Nikolay answers

• how to print columns in java txt file
• Dynamically change the number of nested for loops
• ClassNotFoundException upon running JAR, no errors while running in IntelliJ IDEA
• Did I find a bug in java.io.PipedInputStream?
• Can't access private variable from own class via subclass instance
• Customize score for certain condition in Lucene TFIDF
• Generic method in Java with arbitary return type and Jackson serializer
• Issue in styling Material UI CardHeader component's text