Q1)    What is Servlet, explain servlate life cycle ? Q2)  What is Filter in  Java? Q3)  Explain the JSP Page Life Cycle? Q4)  What is a Java bean class? Q5)  What is ResultSet in Java, define different methods of ResultSet to implement code? Q6)  What is the difference between RequestDisptacher, explain the difference between forward() and include() in java? Q7)  What is Session in Java, how to define session under servlet and JSP? Q8)  What is Cookie in Java, how to get data from particular cookie objects? Q9)  Write SQL Query to update a record, delete record, join operation  Q10)  What is AJAX, how to implement AJAX in JSP and Servlet? Q11)   What is MVC Architecture in Java, how to implement it using JSP, Servlet, and Bean Class? Q12)  How to upload multiple files? Q13)  How to implement server-side and client-side validation in JSP forms? Q14)  How to use Java Bean Class in JSP Web Page Q15)...

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If you want to host react application under a Live server with cPanel, AWS, AZURE, or any Cloud Server then the following step will be implemented. If you have already a server then you can prefer it otherwise you can go under the free hosting site and create an account it will provide a free hosting server. LINK:- https://www.freehosting.com/ 1)   Create React Project Under Local Machine with this command npx create-react-app  reactfirst 2)  go into package.json file and add following code "homepage" : "domainname/reactfirst" , 3) create .htaccess and write a subbfolder name <IfModule mod_rewrite.c > RewriteEngine On RewriteBase /reactfirst/ RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_FILENAME} !-l RewriteRule . /reactfirst/index.html [L] </IfModule> 4) Create a Build npm run build 5) create a ZIP of this build and upload into the server go into Cpanel and create folder reactfirst and upload all fil...

  What is Singleton class in Java? It is a special class in java that is used to provide restriction to create multiple objects, it provides only a single object creation of class using the static reference method. static block and underclass using the final modifier. It is used to implement the Singleton design pattern in Java Application. Rules of Singleton class:- 1)  Singleton class constructor should be private to restrict create a new object from any external method or main() 2)  create a static reference type  method and create an object when static reference is null It is used to provide a Singleton design pattern in a project where we want to create only a single object for all business class that is used in the project. CODE OF SINGLETON DESIGN PATTERN:- class Singletion {     private static Singletion obj;     static String s="";     private Singletion()     {     }     public static Singletion ge...

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NODE JS  Complete Tutorial | Practical explanation by Shiva Sir : Now a days most of the IT Company asked NODE JS Question mostly in interview. I am creating this article to provide help to all MERN Stack developer , who want to learn node js easily. I am Shiva Gautam,  I have 15 Years of experience in Multiple IT Technology, I am Founder of Shiva Concept Solution Best Programming Institute with 100% Job placement guarantee. If you want to know more visit  Shiva Concept Solution