Java - request for article

 Below article is in 2 languages - English + Polish (for simplicity reasons).

File - read / write etc

• Java - read random Access file
• Java - read file line as utf8
• Java - write file line as utf8
• Java - write int to file
• Java - write long to file
• Java - write unsigned long to file
• Java - write bytes array to file

To samo dla byte, boolean, short, float, double

• Java - read int from file

Odczyty podobnie

• Java - how to read binary file
• Java - how to read Json file // popatrzeć czy nie ma czegoś podobnego najwyżej Robić update postu
• Java - how to read XML file // sprawdzić czy czegoś nie ma i ewentualnie update

Podobnie z write

• Java - read indicated bytes from file
• Java - skip bytes and read indicated bytes as integer from file

Java - string

• Java - get nth string character

Java - thread / concurrency 

• request for articles under this link

Java - collections

Złożone posty z java

• Java - streams conversion // wszystkie przykłady konwersji jako odnośniki do innych postów mogły by się tutaj znaleźć
• String to utf8 bytes array
• Java - String to utf8 bytes array
• Java - utf8 bytes array to String
• Java - resize array
• Java - Array List vs LinkedList vs List
• Java - HasMap vs TreeMap vs Map
• Java - difference between blocking data structures vs concurrent data structures
• Java - clone array / copy array (clone już jest)

Java - array

• Java - iterate over array of string (edit: DONE)

• + similar simple array problems

• + corss technology array operations

Java - random

• Java - create Random with seed number
• Java - generate random boolean

Java - date & time

• java - get current timestamp
• java - get current time in milliseconds
• java - get current date and time
• java - get current year, month, day, hour, ...., miliseconds, nanoseconds, ..
• java - current time in milliseconds
• java - current time zone offset
• java - get current timezone
• java - get current date as string
• java - get current date time with format
• java - create Date from milliseconds
• java - the number of milliseconds since January 1, 1970, 00:00:00 GMT
• java - get difference between 2 date times - days, hours, minutes
• java - format date time to given pattern with milliseconds - yyyy-MM-dd HH:mm:ss:SSS
• java - add year to date
• java - add month to date
• java - add days to date
• java - add hours to date
• java - add minutes to date
• java - add seconds to date
• java - add milliseconds to date

Java - other

• java - get current method name
• java - get current working directory
• java - get current thread name