The code you provided is vulnerable to SQL injection. It concatenates user input directly into the SQL query string without any sanitization or parameterization, which can lead to potential security risks. To mitigate the SQL injection vulnerability, you should use prepared statements or parameterized queries instead. Here's an updated version of the code that uses a prepared statement: String query = "SELECT * FROM products WHERE category = ?"; PreparedStatement statement = connection.prepareStatement(query); statement.setString(1, input); ResultSet resultSet = statement.executeQuery(); In this updated code, the **`?`** acts as a placeholder for the user input. By using **`setString()`** on the prepared statement and passing the user input as a parameter, the SQL query is constructed properly, ensuring that the user input is treated as data rather than executable SQL code. This helps to prevent SQL injection attacks. Always remember to validate and sanitize user input before using it in SQL queries to ensure the security and integrity of your application's data.