Naruto questions

Naruto answers

• How to Encrypt/Decrypt text in a file in Java
• Query MySQL DB using preparedStatement.setDate
• How do I alter an existing primary key in a table?
• Avoid unique violation in atomic transaction
• Generating a Random Pin of 5 Digits
• Hadoop 2.6 Connecting to ResourceManager at /0.0.0.0:8032
• jdbctemplate count queryForInt and pass multiple parameters
• spring data jpa utf-8 encoding not working
• Spring Boot JPA set mysql charset to utf-8 [duplicate]