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@tasdemirbahadir
tasdemirbahadir / DateTimeZoneConvertionUtils.java
Created Apr 3, 2019
Convert java.util.Date time zone between UTC and Turkish time zones.
View DateTimeZoneConvertionUtils.java
private static final ZoneId TURKEY_ZONE_ID = ZoneId.of("Turkey");
private static final ZoneId UTC_ZONE_ID = ZoneId.of("UTC");
public static Date convertTurkeyToUTC(Date date) {
return Date.from(date.toInstant().atZone(UTC_ZONE_ID).toLocalDateTime().atZone(TURKEY_ZONE_ID).toInstant());
}
public static Date convertUTCToTurkey(Date date) {
return Date.from(date.toInstant().atZone(TURKEY_ZONE_ID).toLocalDateTime().atZone(UTC_ZONE_ID).toInstant());
}
@tasdemirbahadir
tasdemirbahadir / LyricsFor99BottlesOfBeer.kt
Last active Oct 9, 2018
My 99 Bottles of Beer Lyrics in Kotlin PL. Aided with the source: http://bit.ly/2Nvjh9f
View LyricsFor99BottlesOfBeer.kt
fun main(args: Array<String>) {
printSongLyrics(99)
}
fun printSongLyrics(bottlesSize: Int) {
if (bottlesSize < 0) {
println("Do not enter negative values!")
return
}
@tasdemirbahadir
tasdemirbahadir / Java8ListToMapWithDuplicateKeys
Created Jul 5, 2018
Java8 -> Convert list to a map where list contains duplicate keys
View Java8ListToMapWithDuplicateKeys
aList.stream()
.collect(Collectors.groupingBy(AnObject::getKeyField, toDescSortedList()))
.values()
.stream()
.map(list -> list.get(0))
.collect(Collectors.toMap(AnObject::getKeyField, AnObject::getValueField));
private static <AnObject> Collector<AnObject,?,List<AnObject>> toDescSortedList() {
return Collectors.collectingAndThen(
Collectors.toCollection(ArrayList::new), list -> {
View jquery_bindfirst.js
// source: http://stackoverflow.com/a/2641047/1201725
//
// [name] is the name of the event "click", "mouseover", ..
// same as you'd pass it to bind()
// [fn] is the handler function
$.fn.bindFirst = function(name, fn) {
// bind as you normally would
// don't want to miss out on any jQuery magic
this.on(name, fn);
@tasdemirbahadir
tasdemirbahadir / gist:24a13440c01c148d8e43d336add49c5a
Created Jan 13, 2017
Java Object Collection To String With Delimiter and Optional Field Usage For Object Values
View gist:24a13440c01c148d8e43d336add49c5a
/**
* Convert list to string with delimiter
* @param <T> class of the collection
* @param values Given long values
* @param classTypeParam Pass class type to get fields, do not set null
* @param fieldName Name of the field of the object to get value of
* @param delimiter Given delimiter
* @return ({1L,3L,5L} + Long.class + null + ",") --> ("1,3,5")
* ({{id:1},{id:2},{id:3}} + ObjectClass.class + "id" + ",") --> ("1,2,3")
*/
@tasdemirbahadir
tasdemirbahadir / SpringServiceThread.java
Last active Jul 28, 2016
Using Threads Via Spring Services
View SpringServiceThread.java
/*
* By the design pattern below, you can easily run any code blocks on a Service in Spring MVC.
* This provides a easy usage way of threads, high code maintainability and readability.
*/
public class SpringServiceThread {
@Service
public class ThreadService {
@tasdemirbahadir
tasdemirbahadir / RecordsWithBooleanIndicatesIfContainsOneOfOneToManyRecords.sql
Last active Jul 28, 2016
Check if records have any record inside a one-to-many relation table or not
View RecordsWithBooleanIndicatesIfContainsOneOfOneToManyRecords.sql
SELECT
t.field1,
t.field2,
contains.id is not null contains_record
FROM
table t
LEFT JOIN
(select tom.* from table_one_to_many_relation tom where tom.id = 1) contains on contains.table_id = t.id
@tasdemirbahadir
tasdemirbahadir / SetNullableValue.java
Last active Jul 28, 2016
Set Nullable Value to the PreparedStatement Easily
View SetNullableValue.java
/** Design pattern below provides setting nullable values to the prepared statement easily
* Set nullable value to PreparedStatement
* @param ps PreparedStatement object
* @param value Value to set
* @param type Type of the value at DBMS (ex: Types.VARCHAR)
* @param index Index of the value inside query string
* @return Given PreparedStatement object with the value set
* @throws SQLException
* @throws TypeConstraintException If the type of the given value not found
*/
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