Tag : map

Java – How to update the value of a key in HashMap

By mkyong | Updated: March 2, 2021
Viewed: 20,077 (+80 pv/w)
Java – Get keys from value HashMap

By mkyong | Updated: February 26, 2021
Viewed: 30,801 (+217 pv/w)
How to initialize a HashMap in Java

By mkyong | Updated: December 3, 2020
Viewed: 8,426 (+69 pv/w)
Java 8 Stream.reduce() examples

By mkyong | Updated: February 24, 2020
Viewed: 30,605 (+130 pv/w)
Java 8 – Convert Optional<String> to String

By mkyong | Updated: February 20, 2020
Viewed: 20,876 (+131 pv/w)
Java Map with Insertion Order

By mkyong | Updated: February 13, 2020
Viewed: 4,421 (+45 pv/w)
Java 8 forEach print with Index

By mkyong | Updated: February 13, 2020
Viewed: 15,629 (+102 pv/w)
Java – How to get keys and values from Map

By mkyong | Updated: August 9, 2019
Viewed: 27,109 (+162 pv/w)
Java – How to Iterate a HashMap

By mkyong | Updated: April 8, 2019
Viewed: 15,969 (+143 pv/w)
Kotlin – How to Loop a Map

By mkyong | Updated: April 12, 2018
Viewed: 4,306 (+6 pv/w)
Java 8 Streams map() examples

By mkyong | Updated: April 3, 2017
Viewed: 158,472 (+802 pv/w)
Java – Convert Object to Map example

By mkyong | Updated: October 29, 2016
Viewed: 69,227 (+148 pv/w)
Java – Display all ZoneId and its UTC offset

By mkyong | Updated: June 19, 2019
Viewed: 39,684 (+182 pv/w)
Java 8 – How to sort a Map

By mkyong | Updated: October 26, 2018
Viewed: 44,158 (+360 pv/w)
Java 8 – Convert Map to List

By mkyong | Updated: May 24, 2017
Viewed: 53,791 (+334 pv/w)
JUnit – How to test a Map

By mkyong | Updated: June 12, 2016
Viewed: 17,883 (+67 pv/w)
Java 8 – Convert List to Map

By mkyong | Updated: May 26, 2017
Viewed: 99,828 (+482 pv/w)
How to get the environment variables in Java

By mkyong | Updated: October 25, 2021
Viewed: 16,643 (+99 pv/w)
Java – Check if key exists in HashMap

By mkyong | Updated: June 30, 2016
Viewed: 865 (+2 pv/w)
Java 8 forEach examples

By mkyong | Updated: December 4, 2020
Viewed: 64,353 (+421 pv/w)
How to count duplicated items in Java List

By mkyong | Updated: November 7, 2012
Viewed: 1,867 (+12 pv/w)
Convert JSON string to Map using Jackson

By mkyong | Updated: April 23, 2024
Viewed: 93,261 (+445 pv/w)
Spring EL Lists, Maps example

By mkyong | Updated: August 29, 2012
Viewed: 489 (+3 pv/w)
How to sort a Map in Java

By mkyong | Updated: August 12, 2016
Viewed: 20,125 (+54 pv/w)
How to loop Map in Java

By mkyong | Updated: March 13, 2024
Viewed: 34,536 (+128 pv/w)
Java – How to display all System properties

By mkyong | Updated: October 26, 2018
Viewed: 14,983 (+133 pv/w)