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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:
- Secure resource access including filesystems, manage policies and execute privileged code
- Initialize objects and their members using instance and static initialiser statements and constructors
- Declare and instantiate Java objects including nested class objects, and explain objects' - lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Create and use subclasses and superclasses, including abstract classes
- Define and use fields and methods, including instance, static and overloaded methods
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Create and use enumerations
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Understand variable scopes, apply encapsulation and make objects immutable
- Develop code that mitigates security threats such as denial of service, code injection, input validation and ensure data integrity
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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 a Java array and List, Set, Map and Deque collections, including convenience methods
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
- Use generics, including wildcards
- Use Java Streams to filter, transform and process data
- Sort collections and arrays using Comparator and Comparable interfaces
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
How to Prepare For Java SE 11 Developer Exam Number: 1Z0-819
Preparation Guide for Java SE 11 Developer Exam Number: 1Z0-819
Introduction for Java SE 11 Developer Exam Number: 1Z0-819
1Z0-006 exam is for those that have completed the Database Foundations, Database Design and Programming with SQL (Oracle Academy training), Oracle Database 12c Administration Workshop or Oracle Database Introduction to SQL training. Passing this exam gives the certification credential demonstrating your understanding of the different types of database models and components. And, you will enhance knowledge of database components, concepts and design, implementation of business roles, SQL language and queries, and ERD modeling and languages to manage data and transactions.
The Java SE 11 Developer Exam Number: 1Z0-819 is recommended for the following candidates who have:
- Exposure to the Java programming language
- Be a professional programmer with Java experience
- Desirable to have completed some or all of my Java Masterclass
- Have a desire to get Java certified and earn more money
- Preferably have completed all or part of my Java Masterclass here on Udemy (or another Java course)
Becoming Java certified is a great way to help improve your career options with more job opportunities and more pay. That's because Oracle's Java certification program, unlike many other certifications out there, has real value in the industry. One of the main reasons is that it's an official Oracle certification, but second, the exam is quite difficult to pass. Employers see programmers who are Java certified as more valuable than programmers who are not certified. So it's totally worth getting Java certified to take advantage of this.
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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:
- Handle file system objects using java.nio.file API
- Declare, use, and expose modules, including the use of services
- Initialize objects and their members using instance and static initialiser statements and constructors
- Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Create and use subclasses and superclasses, including abstract classes
- Define and use fields and methods, including instance, static and overloaded methods
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Implement serialization and deserialization techniques on Java objects
- Create and use enumerations
- Deploy and execute modular applications, including automatic modules
- Read and write console and file data using I/O Streams
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Understand variable scopes, apply encapsulation and make objects immutable
- Create, apply, and process annotations
- Connect to and perform database SQL operations, process query results using JDBC API Annotations
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Exception Handling and Localization | 10% | - Use assertions - Use resource bundles and locale classes for internationalization - Use standard exception classes - Create and throw custom exceptions - Describe the advantages of exception handling - Create try-catch blocks and understand exception propagation |
| Concurrency | 10% | - Use parallel streams to improve performance - Create worker threads using Runnable and Thread objects - Use java.util.concurrent atomic classes and ForkJoinPool - Identify potential threading problems - Use synchronized blocks and the volatile keyword - Use ExecutorService to concurrently execute tasks |
| Annotations | 5% | - Create custom annotations - Apply standard annotations to classes and methods - Describe the purpose of annotations |
| Java Platform Module System | 10% | - Use jdeps to determine dependencies - Migrate applications to use modules - Explain the concept of module exports and requires - Declare module dependencies - Deploy and execute modules - Explain the default modules and class path |
| Working with Arrays and Collections | 8% | - Use generic types and diamond operator - Search for elements in a collection - Filter a collection using lambda expressions - Sort elements in a collection - Iterate through a collection - Create a list, set, map, or queue collection |
| I/O (Fundamentals and NIO2) | 7% | - Use NIO2 API to work with file systems and file attributes - 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 |
| Secure Coding in Java SE Application | 5% | - Validate user input - Prevent SQL injection and other attacks - Secure sensitive data - Prevent Denial of Service (DoS) attacks |
| Working with Java OOP | 15% | - Use abstract classes and interfaces - Implement encapsulation - Apply the static keyword to methods and fields - Apply the final keyword to classes, methods, and fields - Create inner classes and use them within other classes - Implement inheritance - Implement polymorphism |
| Controlling Program Flow | 10% | - Use Java control statements - Use for, while, and do/while loops - Use break and continue statements - Use switch statements - Use if and if/else statements |
| Database Applications with JDBC | 5% | - Execute queries and process results - Use parameterized queries - Describe the advantages of using a connection pool - Connect to a database using JDBC |
| Working with Java data types | 12% | - Create and manipulate strings - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Call methods on objects - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables - Read or write to object fields - Differentiate between object reference variables and primitive variables |
| Working with Streams and Lambda expressions | 13% | - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use functional interfaces with lambda expressions - Filter a collection using lambda expressions - Describe the Stream interface and pipeline - Use the Stream API to perform terminal operations - Use method references with streams |
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