// Java JDBC Database Connection Example
// Demonstrates connecting to a database using JDBC driver
// Executing SQL queries and processing ResultSet
import java.sql.*;
public class JDBCExample {
public static void main(String[] args) {
try {
// 1. Load the JDBC driver
Class.forName("oracle.jdbc.driver.OracleDriver");
// 2. Establish connection
Connection conn = DriverManager.getConnection(
"jdbc:oracle:thin:@localhost:1521:xe", "scott", "tiger");
// 3. Create statement
Statement stmt = conn.createStatement();
// 4. Execute query and get results
ResultSet rs = stmt.executeQuery("SELECT * FROM emp");
// 5. Process results
while(rs.next()) {
System.out.println(rs.getString("ename"));
}
// 6. Close resources (reverse order)
rs.close();
stmt.close();
conn.close();
} catch(Exception e) {
e.printStackTrace();
}
}
}
