Marvin questions

Marvin answers

• My System.out.println(); keeps printing null instead of the text it should print
• Is there a standard Kotlin function to return a list without the item at a given index?
• how to replace letters by loop in java?
• Why is SimpleDateFormat changing the date?
• Android java.time.LocalDateTime
• strtotime and date not outputting correctly
• Refactor foreach to for loop
• Java - Error-message displaying incorrectly
• Java TreeSet with length Comparator bug?
• Why isn't unreachable code detected when an if condition is a constant?