Multithreading - Part 7 : Different ways to create thread

https://youtu.be/-9mUoA6cSCY

Multithreading - Part 6 : Thread Life cycle

https://youtu.be/5cdlseWIrSA

How to zip a file in Java

Basic requirement to zip or compress a file:-

ujava.util.zip package provides necessary classes for reading and writing the standard ZIP and GZIP file formats.

uWe need following packages to work with:

ujava.io

ujava.util.zip

uClasses required to work with

uFileInputStream, FileOutputStream

uZipEntry

uZipOutputStream

To see in details please go through the following link: 

Multithreading - Part 5 : pause your thread

https://youtu.be/CsJW7rIsnwg

Multithreading - Part 4 : Thread Priority

https://youtu.be/uveO6jHJ-k0

Multithreading - Part 3 : Running two threads simultaneously

https://youtu.be/4qSJhP7R46o

Multithreading - Part 2 : About main thread

https://youtu.be/4sGmxub3Kfk

Multithreading : Intro

https://youtu.be/pAH0a60_nlY

Java Collection : Part 16 : Using HashMap with entrySet()

https://youtu.be/UslxRX489V8

Java Collection : Part 15 : Using HashMap

https://youtu.be/FClS1d3AL_Q

Java Collection : Part 14 : Map interface introduction

https://youtu.be/UI_Ew_K8t78

WhatsApp Trick : How to edit image before sending

https://youtu.be/dJLafQjsh98

WhatsApp trick : send messages in any language

https://youtu.be/3LMuWiftbuI

how to see starred messages of WhatsApp

https://youtu.be/2wyBC1a0ItQ

Java Collection : Part 13 : using retainAll()

https://youtu.be/Cn96de_p5MU

Java Collection : Part 12 : Iterate custom object

https://youtu.be/9dDM2XSTa8Q

Java Collection : Part 11 : When and why to override equals() method

https://youtu.be/a4oRSTCbolY

Java Collection : Part 10 : Bi-directional iteration using ListIterator

https://youtu.be/hxMl-GHQ5Xk

Java Collection : Part 9 : Iterate custom object from list

https://youtu.be/VpgDFOnWais

Java Collection : Part 8 : Adding custom object to list

https://youtu.be/yx9m51xsjYw

Java Collection : Part 8 : Adding custom object to list

https://youtu.be/yx9m51xsjYw

Java Collection : Part 7 : How to use Iterator - 2

https://youtu.be/I-IJegBOw0s

Java Collection : Part 6 : How to use Iterator - 1

https://youtu.be/7iVNrmjNRkw

Java collection 5 : iterator

https://youtu.be/i1Jfu0sgc0k