Atul Rai
I love sharing my experiments and ideas with everyone by writing articles on the latest technological trends.Find second index of a substring in a String in Java
In Java, we can use the overloaded method indexOf(String str, int fromIndex) of the String class to get the second […] Continue reading »
How to delete duplicate rows in Excel
This tutorial will help you to remove all the duplicated data/rows from the Excel sheet. Follow the below steps: Step […] Continue reading »
Java- Count number of pairs in the Array whose sum is zero
This Java example will help to solve a given scenario. Scenario: Write down a Java program that calculates the number […] Continue reading »
Eclipse shortcuts for Open Call Hierarchy
In Eclipse IDE, Ctrl + Alt + H are the shortcut key to see the call hierarchy of any method […] Continue reading »
How to search old emails in Gmail quickly
This article will help to search older emails on your Gmail account faster and easier with the new operators. If […] Continue reading »
Failed to start bean ‘documentationPluginsBootstrapper’; nested exception is java.lang.NullPointerException
You might encounter the “Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.NullPointerException” error while upgrading Spring Boot and Swagger […] Continue reading »
ORA-01045: user xxx lacks CREATE SESSION privilege; logon denied
In the Oracle database, if you have created a new user and tried to log in with a newly created […] Continue reading »
Difference between trim() and strip() methods in Java
In this article, you will learn the difference between trim() and strip() methods of the String class in Java. trim() […] Continue reading »
How to increase Eclipse toolbar icon size
This article will help you how to increase Eclipse toolbar icon size. Sometimes you might be notice Eclipse interface icons […] Continue reading »
Java – isBlank() vs isEmpty() method of String class
In this short article, you will get to know about the difference between the isBlank() and isEmpty() methods of the […] Continue reading »
Java 11- New Methods of String Class
Java 11 (JDK 11) added a few new utility methods in the String class. These utility methods will reduce the […] Continue reading »