Array: Creating : int [][] a1= new int [3][3]; Size/length: a1.length Sorting Arrays to list: String: toLowerCase() toUpperCase() replace(‘x’ , ‘y’) replaces all appearances of ‘x’ with ‘y’ trim() removes the whitespaces at the beginnin...
I had a hard time when I first dealt with conversions between timezones, mostly because I was not aware of PST, PDT, UTC and other basic stuff. Understanding Pacific Standard Time[PST], Pacific DaylightTime[PDT] and Universal Time Coordinated[UTC] wa...
First Day at work in 2021! Spent most of the day understanding a single line of code. This was originally written in Typescript. return ChronoUnit.DAYS.between(Instant.ofEpochMilli(doc.${field1}.value.millis).truncatedTo(ChronoUnit.DAYS), Instant.ofE...