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Understanding functional and technical aspects of Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in the ORACLE 1Z0-006 exam dumps:
- Declare, use, and expose modules, including the use of services
- Handle file system objects using java.nio.file API
- Create and use subclasses and superclasses, including abstract classes
- Implement serialization and deserialization techniques on Java objects
- Create, apply, and process annotations
- Understand variable scopes, apply encapsulation and make objects immutable
- Create and use enumerations
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Initialize objects and their members using instance and static initialiser statements and constructors
- Connect to and perform database SQL operations, process query results using JDBC API Annotations
- Deploy and execute modular applications, including automatic modules
- Define and use fields and methods, including instance, static and overloaded methods
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Read and write console and file data using I/O Streams
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Understanding functional and technical aspects of Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in the ORACLE 1Z0-006 exam dumps pdf:
- Use Java Streams to filter, transform and process data
- Use generics, including wildcards
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
- Sort collections and arrays using Comparator and Comparable interfaces
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
- Use a Java array and List, Set, Map and Deque collections, including convenience methods
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Working with Streams and Lambda expressions | 13% | - Use method references with streams - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use the Stream API to perform terminal operations - Filter a collection using lambda expressions - Describe the Stream interface and pipeline - Use functional interfaces with lambda expressions |
| Exception Handling and Localization | 10% | - Create and throw custom exceptions - Use assertions - Create try-catch blocks and understand exception propagation - Use standard exception classes - Use resource bundles and locale classes for internationalization - Describe the advantages of exception handling |
| Java Platform Module System | 10% | - Explain the concept of module exports and requires - Migrate applications to use modules - Deploy and execute modules - Declare module dependencies - Use jdeps to determine dependencies - Explain the default modules and class path |
| I/O (Fundamentals and NIO2) | 7% | - Use Path interface to manipulate file paths - Use Stream API with files - Read and write console and file input/output using Java I/O system - Use NIO2 API to work with file systems and file attributes |
| Secure Coding in Java SE Application | 5% | - Secure sensitive data - Prevent SQL injection and other attacks - Prevent Denial of Service (DoS) attacks - Validate user input |
| Working with Java OOP | 15% | - Implement encapsulation - Apply the static keyword to methods and fields - Create inner classes and use them within other classes - Implement inheritance - Apply the final keyword to classes, methods, and fields - Use abstract classes and interfaces - Implement polymorphism |
| Controlling Program Flow | 10% | - Use break and continue statements - Use Java control statements - Use switch statements - Use if and if/else statements - Use for, while, and do/while loops |
| Working with Java data types | 12% | - Call methods on objects - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Differentiate between object reference variables and primitive variables - Create and manipulate strings - Manipulate data using the StringBuilder class and its methods - Read or write to object fields - Declare and initialize variables |
| Annotations | 5% | - Create custom annotations - Describe the purpose of annotations - Apply standard annotations to classes and methods |
| Database Applications with JDBC | 5% | - Describe the advantages of using a connection pool - Connect to a database using JDBC - Execute queries and process results - Use parameterized queries |
| Concurrency | 10% | - Use ExecutorService to concurrently execute tasks - Use parallel streams to improve performance - Create worker threads using Runnable and Thread objects - Identify potential threading problems - Use synchronized blocks and the volatile keyword - Use java.util.concurrent atomic classes and ForkJoinPool |
| Working with Arrays and Collections | 8% | - Sort elements in a collection - Filter a collection using lambda expressions - Search for elements in a collection - Create a list, set, map, or queue collection - Use generic types and diamond operator - Iterate through a collection |
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