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Javin Paul
Lived in Mumbai
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Javin Paul

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how to set JAVA_HOME in Linux
Step by step guide to set the JAVA_HOME and PATH in Linux. You can set that in your .bash_profile or /etc/profile file as shown here http://java67.blogspot.com/2016/06/how-to-set-javahome-and-path-in-linux.html #Java   #Linux  
The JAVA_HOME environment variable points to the JDK installation directory and used by many Java tools and applications like Eclipse, Maven, ANT, Tomcat etc. to figure out Java executables as they need Java for running. Unfo...
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Javin Paul

Tutorials And Tips  - 
 
 
Why use SLF4j over Log4j for logging in Java?
Here are some reasons which you should know before choosing between SLF4j and Log4j http://javarevisited.blogspot.com/2013/08/why-use-sl4j-over-log4j-for-logging-in.html #Java   #Logging   #Log4j  
Every Java programmers know that logging is critical for any Java application, especially server-side application, and many of them are already familiar with various logging libraries e.g. java.util.logging, Apache log4j, logback, but if you don't know about SLF4J, Simple logging facade for Java ...
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Javin Paul

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How to add two integer array in Java?
Since Java doesn't support operator overloading you cannot add the two arrays using + operator, instead you need to loop over array and add each elements as shown in following example http://java67.blogspot.com/2016/06/how-to-add-elements-of-two-arrays-in-java-example.html #java   #array  
One of the common programming exercise on various Java course is addition and multiplication of two arrays. How do you add two integer arrays in Java? Can you add two String array? how about other data types etc? These are so...
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Javin Paul

How-To/Tutorials  - 
 
It is possible to increase the heap size allocated by the JVM by using command line options Here we have 3 options -Xms<size> to set the initial Java heap size -Xmx<size> to set the maximum Java heap size -Xss<s...
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A binary search tree or BST is a popular data structure which is used to keep elements in order. A binary search tree is a binary tree where the value of a left child is less than or equal to the parent node and value of the right child is greater than or equal to the parent node.
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Javin Paul

Java Core  - 
 
 
10 Examples of Joining String in Java 8 - StringJoiner and String.join()
It's quite common in day to day programming to join Strings e.g. if you have an array or List of String let's say {Sony, Apple, Google} and you want to join them by comma to produce another String "Sony, Apple, Google", there is not an easy way to do it in ...
It's quite common in day to day programming to join Strings e.g. if you have an array or List of String let's say {Sony, Apple, Google} and you want to join them by comma to produce another String "Sony, Apple, Google", there is not an easy way to do it in Java. You need to iterate through array ...
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Javin Paul

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How to close telnet terminal in UNIX
Even though telnet is a basic command if you use it after long time, you may forget how to come out of it because its not so obvious. The usual quit, exit or Ctrl + C won't work until you type escape characters, which is a key here. http://javarevisited.blogspot.com/2016/06/how-to-close-telnet-terminal-in-linux-windows-quite-exit-not-working.html #UNIX   #Linux  
The telnet is one of the most useful networking commands, which is used to check if a server is listening on a particular port on the remote host, but it's a little bit tricky to use, especially, if you are not using it daily. Though I have used telnet before, but when I use it after a long time ...
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Today we will take a look at another simple programming exercise, write a program to check if a number is binary in Java. A number is said to be binary if it only contains either 0 or 1, for example, 1010 is a binary number but 1234 is not. You can not any library method to solve this problem, ...
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Javin Paul

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How to use spaces instead of tabs in Eclipse?
Here is guide to change the default setting of Eclipse for Java code editor which force you to use the tabs. Using hard tab means differnet formatting and indentation on different editors because TAB has different meaning in different text editors. http://javarevisited.blogspot.com/2016/06/how-to-make-eclipse-use-spaces-instead.html #Java   #Eclipse  
I use Eclipse IDE extensively to write Java programs for testing and example purpose, but when I copy those program in any text editors e.g. VIM, Notepad, TextPad or Edit plus, the indentation goes weird. I see a lot of white spaces which makes the program wider than expected.
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How much tax you can save by buying health insurance in India?
Here is a chart which explains that http://savingsfunda.blogspot.com/2016/06/tax-benefit-of-buying-health-insurance-for-NRI.html #NRI   #IncomeTax  
There is no doubt that in today's expensive world you need a good health insurance policy for your family and parents. Hospitalization and the Medical cost have risen significantly in India and expenditure ranging in 5 lakhs ...
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Javin Paul

Tutorials And Tips  - 
 
 
Difference between Daemon Thread vs User Thread in Java?
A thread is used to perform parallel execution  in Jaa e.g. while rendering screen your program is also downloading the data from the internet in the background. There are two types of threads in Java, user thread and daemon thread, both of which can use to...
A thread is used to perform parallel execution in Jaa e.g. while rendering screen your program is also downloading the data from the internet in the background. There are two types of threads in Java, user thread and daemon ...
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Software Architect
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Java, Programming, Linux, SQL, Spring, FIX Prtocol, Tibco Rendezvous, Oracle, JMS, J2EE, XML, XSLT, UNIX
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Hi, I am Javin Paul, I have been working in Java, Unix, MySQL, FIX Tutorial and TIbco RV messaging technology .
Introduction
Hi, I am Javin Paul. I have been working in Java, FIX Tutorial and TIbco RV messaging technology from past 7 years. I am interested in writing and meeting people, reading and learning about new subjects and I have my own website Javarevisited,  Java67 and  Savingfunda: Saving and Investment Tips that takes up most of my time and is a labour of love for me. 
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Mumbai
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