<div>
<div id="suggestion">
<div id="issue"><b>Consider input validation in constructor</b></div>
<div id="fix">
Consider validating input parameters in the constructor to ensure data integrity....
<div>
<div id="suggestion">
<div id="issue"><b>Improve exception handling in static block</b></div>
<div id="fix">
The exception handling in the static block silently swallows exceptions by only...
<div>
<div id="suggestion">
<div id="issue"><b>Consider closing InputStream after use</b></div>
<div id="fix">
The `InputStream` is not being closed after use which could lead to resource leaks
...
<div>
<div id="suggestion">
<div id="issue"><b>Consider using try-with-resources for connection</b></div>
<div id="fix">
The database connection is not being closed in the `updateBook` method. C...
<div>
<div id="suggestion">
<div id="issue"><b>Consider making constant fields final</b></div>
<div id="fix">
Consider making the constant fields `final` to ensure they cannot be modified after ...
<div>
<div id="suggestion">
<div id="issue"><b>Phone number stored as Long type</b></div>
<div id="fix">
Consider using `String` instead of `Long` for phone numbers to preserve leading zeros and...