What are the basic steps for JDBC connection, explain it with suitable program. give me the content for 5 marks

Sure, here are the basic steps for establishing a JDBC connection:

1. Import the packages: Requires that you include the packages containing the JDBC classes needed for database programming. This is done by using the import keyword in Java.

import java.sql.*;

2. Register the JDBC driver: This step causes the JVM to load the desired driver implementation into memory so it can fulfill your JDBC requests.

Class.forName("com.mysql.jdbc.Driver");

3. Open a connection: Here, you’ll connect to your database.

Connection conn = DriverManager.getConnection(DB_URL, USER, PASS);

4. Execute a query: Requires using an object of type Statement for building and submitting an SQL statement to the database.

Statement stmt = conn.createStatement();
String sql;
sql = "SELECT id, first, last, age FROM Employees";
ResultSet rs = stmt.executeQuery(sql);

5. Extract data from result set: Requires that you use the appropriate ResultSet.getXXX() method to retrieve the data from the result set.

while(rs.next()){
   //Retrieve by column name
   int id  = rs.getInt("id");
   int age = rs.getInt("age");
   String first = rs.getString("first");
   String last = rs.getString("last");

   //Display values
   System.out.print("ID: " + id);
   System.out.print(", Age: " + age);
   System.out.print(", First: " + first);
   System.out.println(", Last: " + last);
}

6. Clean up the environment: Here, you need to explicitly close all database resources versus relying on the JVM's garbage collection.

rs.close();
stmt.close();
conn.close();

This is a basic example of how to establish a JDBC connection. Please replace the placeholders with your actual database URL, username, and password. Also, make sure to handle exceptions properly in your actual code.