Webieon Technologies Interview Questions and Answers

Basic of core Java , jdbc connection in advance Java , MySQL, HTML, CSS , javascript

Q1. Basic of advance Java and framework which one I know . Basically asked about spring mvc
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Q2. What is spring? What is jdbc ? How to connect with database using jdbc connection etc.
Ans. 
Spring is a lightweight framework for building Java applications. JDBC is a Java API for connecting to databases.
• Spring is a framework that provides comprehensive infrastructure support for developing Java applications.

• JDBC is a Java API that allows Java programs to interact with databases.

• To connect to a database using JDBC, you need to load the JDBC driver, establish a connection, create a statement, execute the quer
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Q3. What is jdbcand how to connect with database?
Ans. 
JDBC is a Java API for connecting and executing queries on databases.
• JDBC stands for Java Database Connectivity.

• To connect to a database using JDBC, you need to load the database driver, establish a connection, create a statement, execute queries, and process the results.

• Example: Class.forName("com.mysql.jdbc.Driver"); Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/database", "username", "pas
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Q4. How many Type of Exception ?
Ans. 
There are two types of exceptions: checked exceptions and unchecked exceptions.
• Checked exceptions are checked at compile time and must be handled by the programmer using try-catch or throws keyword.

• Unchecked exceptions are not checked at compile time and can be handled if desired, but it is not mandatory.

• Examples of checked exceptions include IOException, SQLException, and ClassNotFoundException.

• Examples of unchecked e...read more
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