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Oracle 1Z1-804 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Java I/O Fundamentals | 10% | - Use streams to read and write files - Read and write data from the console - Use BufferedReader, BufferedWriter, File, FileReader, FileWriter, and RandomAccessFile |
| Generics and Collections | 20% | - Sort and search collections - Create and use generics including generic classes, interfaces, and methods - Use Comparable and Comparator interfaces - Use List, Set, Map, and Deque interfaces and implementations - Use type parameters and wildcards |
| Java Class Design | 15% | - Implement encapsulation - Create and use singleton classes and immutable classes - Implement polymorphism - Override hashCode, equals, and toString methods from Object class - Implement inheritance including visibility modifiers and composition |
| Concurrency | 15% | - Manage thread lifecycle - Use concurrent collections - Use Executor, ExecutorService, Executors, Callable, and Future - Create and use Threads and Runnable - Use synchronized keyword and java.util.concurrent.atomic package |
| Java File I/O (NIO.2) | 10% | - Use Files class to check, read, delete, copy, move, and manage file attributes - Use DirectoryStream to iterate over directory contents - Use Path interface to operate on file and directory paths - Use PathMatcher and WatchService |
| Localization | 5% | - Format dates, numbers, and currencies for local use - Build a resource bundle for each locale - Read and set the locale by using the Locale object |
| String Processing | 10% | - Search, parse, and build strings using String, StringBuilder, and StringBuffer - Format strings using printf and format methods - Use regular expressions to create patterns for matching, searching, and replacing |
| Advanced Class Design | 15% | - Create and use custom annotations - Use enumerated types including methods, constructors, and inheritance in enum types - Develop code that uses abstract classes and methods - Create inner classes including static inner class, local class, nested class, and anonymous inner class - Develop code that uses final keyword |
| Exceptions and Assertions | 10% | - Test invariants by using assertions - Use try-catch-finally and try-with-resources statements - Create custom exceptions and use exception chaining |
