Topics

• Inheritance
• Exceptions and exception handling
• File I/O
• Strings
• Singletons
• HttpURLConnection
• Arithmetic (Math)
• npm
• Filesystem I/O
• Android NDK
• DOM Manipulation
• Selectors
• Creating databases
• Backup using mysqldump
• Web Cryptography API
• JSON in Java
• Strategy Pattern
• Strings
• Converting to and from Strings

Examples

• The try-with-resources statement
• Using 'final' to restrict inheritance and overriding
• Installing packages
• Scopes and repositories
• Writing to a file using writeFile or writeFileSync
• Asynchronously Read from Files
• Listing Directory Contents with readdir or readdirSync
• Building native executables for Android
• Creating DOM elements
• Manipulating element classes
• Selecting elements using CSS selectors
• Conversion to / from bytes
• Writing a byte[] to a file
• Stream vs Writer/Reader API
• Bitwise operators
• Creating a backup of a database or table
• Specifying username and password
• Restoring a backup of a database or table
• Cryptographically random data
• Creating digests (e.g. SHA-256)