Certification Path for Java SE 11 Developer Exam Number: 1Z0-819
Java SE 11 Developer Exam Number: 1Z0-819 is a fundamental exam. Successful completion by candidates will allow them to achieve Oracle Certified Professional: Java SE 11 Developer.
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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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:
- Have a desire to get Java certified and earn more money
- Desirable to have completed some or all of my Java Masterclass
- Be a professional programmer with Java experience
- Exposure to the Java programming language
- 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.
ORACLE 1Z0-006 practice exams and ORACLE 1Z0-006 practice exams are designed specifically for candidates to gain an uperhand on experience and knowledge to get through this exam.
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Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Database Applications with JDBC | 5% | - Connect to a database using JDBC - Describe the advantages of using a connection pool - Execute queries and process results - Use parameterized queries |
| Annotations | 5% | - Create custom annotations - Apply standard annotations to classes and methods - Describe the purpose of annotations |
| Working with Arrays and Collections | 8% | - Sort elements in a collection - Filter a collection using lambda expressions - Create a list, set, map, or queue collection - Iterate through a collection - Use generic types and diamond operator - Search for elements in a collection |
| Working with Streams and Lambda expressions | 13% | - Use method references with streams - Filter a collection using lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Describe the Stream interface and pipeline - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions |
| Java Platform Module System | 10% | - Deploy and execute modules - Migrate applications to use modules - Use jdeps to determine dependencies - Declare module dependencies - Explain the concept of module exports and requires - Explain the default modules and class path |
| Working with Java data types | 12% | - Call methods on objects - Differentiate between object reference variables and primitive variables - Declare and initialize variables - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Read or write to object fields - Manipulate data using the StringBuilder class and its methods - Create and manipulate strings |
| Working with Java OOP | 15% | - Create inner classes and use them within other classes - Implement inheritance - Apply the final keyword to classes, methods, and fields - Implement encapsulation - Apply the static keyword to methods and fields - Implement polymorphism - Use abstract classes and interfaces |
| Exception Handling and Localization | 10% | - Use resource bundles and locale classes for internationalization - Use assertions - Create try-catch blocks and understand exception propagation - Describe the advantages of exception handling - Create and throw custom exceptions - Use standard exception classes |
| Concurrency | 10% | - Use java.util.concurrent atomic classes and ForkJoinPool - 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 |
| Secure Coding in Java SE Application | 5% | - Prevent SQL injection and other attacks - Validate user input - Secure sensitive data - Prevent Denial of Service (DoS) attacks |
| Controlling Program Flow | 10% | - Use if and if/else statements - Use Java control statements - Use for, while, and do/while loops - Use switch statements - Use break and continue statements |
| 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 NIO2 API to work with file systems and file attributes - Use Path interface to manipulate file paths |
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