JBT

Joined: January 24, 2020
Articles: 211
Comments: 391

Core Java

What is the use of serialVersionUID

Here I will discuss the importance of the variable serialVersionUID which are used in Serializable classes.

JBT
January 9, 2014
8 Comments

Core Java

Transient vs Static variable java

Here I will show you what is the difference between Static and Transient. In any way, these two things are completely different with the different scope but people use to ask me this question lot of time. Here in this…

JBT
December 29, 2013
59 Comments

Core Java

Java Serialization concept & Example Part II

In first part we have discussed what is serialization and how to achieve it in Java. In this article, we will discuss some advanced topics covering Serialization.

JBT
December 28, 2013
5 Comments

Core Java

Java serialization concept and Example

Here I will learn and teach you what is Serialization in Java and how to write code for the same.

JBT
December 28, 2013
18 Comments

Hadoop

Format aborted in /app/hadoop/tmp/dfs/name

While startng the Hadoop i was just trying to format the filesystem. For that i have executed below command. bin/hadoop namenode -format But i am getting below error while doing this. Could you please let me know what could be…

JBT
December 18, 2013
4 Comments

Hadoop

Hadoop Interview Question

What is the difference between start-all.sh and start-dfs.sh in Hadoop There are different scripts in bin dir in Hadoop which is used to launch Hadoop DFS and Hadoop Map/Reduce Daemons. start-dfs.sh – Starts the Hadoop DFS daemons (Namenode and Datanodes)…

JBT
December 18, 2013

Spring

Spring Transaction Management Tutorial

What is Transaction Management The sequence of activities that will be performed to complete database operation and its management is known as Transaction Management. All these actions in combination will be treated as ONE action only. So that DB doesn’t…