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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:
- Create and use enumerations
- Define and use fields and methods, including instance, static and overloaded methods
- Develop code that mitigates security threats such as denial of service, code injection, input validation and ensure data integrity
- Create and use subclasses and superclasses, including abstract classes
- Declare and instantiate Java objects including nested class objects, and explain objects' - lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Initialize objects and their members using instance and static initialiser statements and constructors
- Secure resource access including filesystems, manage policies and execute privileged code
- Understand variable scopes, apply encapsulation and make objects immutable
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If you have at least some programming experience, we recommend using the ORACLE 1Z0-006 practice exam and ORACLE 1Z0-006 practice exams exam dumps and practice exams written for exam 1z0-816 and it covers most of what will be on the exam. TrainingDumps.con also has practice exams to prepare for the exam. Also, you can find mock exams to check the knowledge learned after reading the book.
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Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Working with Arrays and Collections | 8% | - Sort elements in a collection - Filter a collection using lambda expressions - Use generic types and diamond operator - Search for elements in a collection - Create a list, set, map, or queue collection - Iterate through a collection |
| I/O (Fundamentals and NIO2) | 7% | - Read and write console and file input/output using Java I/O system - Use Stream API with files - Use Path interface to manipulate file paths - Use NIO2 API to work with file systems and file attributes |
| Exception Handling and Localization | 10% | - Use assertions - Create try-catch blocks and understand exception propagation - Describe the advantages of exception handling - Create and throw custom exceptions - Use resource bundles and locale classes for internationalization - Use standard exception classes |
| Working with Java OOP | 15% | - Implement encapsulation - Create inner classes and use them within other classes - Implement polymorphism - Implement inheritance - Use abstract classes and interfaces - Apply the final keyword to classes, methods, and fields - Apply the static keyword to methods and fields |
| Controlling Program Flow | 10% | - Use break and continue statements - Use if and if/else statements - Use for, while, and do/while loops - Use Java control statements - Use switch statements |
| Database Applications with JDBC | 5% | - Use parameterized queries - Connect to a database using JDBC - Describe the advantages of using a connection pool - Execute queries and process results |
| Working with Java data types | 12% | - Manipulate data using the StringBuilder class and its methods - Differentiate between object reference variables and primitive variables - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Call methods on objects - Read or write to object fields - Declare and initialize variables - Create and manipulate strings |
| Working with Streams and Lambda expressions | 13% | - Use method references with streams - Describe the Stream interface and pipeline - Filter a collection using lambda expressions - Use functional interfaces with lambda expressions - Use the Stream API to perform terminal operations - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods |
| Java Platform Module System | 10% | - Explain the default modules and class path - Migrate applications to use modules - Deploy and execute modules - Use jdeps to determine dependencies - Explain the concept of module exports and requires - Declare module dependencies |
| Concurrency | 10% | - Create worker threads using Runnable and Thread objects - Use parallel streams to improve performance - Identify potential threading problems - Use synchronized blocks and the volatile keyword - Use java.util.concurrent atomic classes and ForkJoinPool - Use ExecutorService to concurrently execute tasks |
| Secure Coding in Java SE Application | 5% | - Prevent Denial of Service (DoS) attacks - Validate user input - Prevent SQL injection and other attacks - Secure sensitive data |
| Annotations | 5% | - Describe the purpose of annotations - Create custom annotations - Apply standard annotations to classes and methods |
