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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
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Create and use subclasses and superclasses, including abstract classes
- 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)
- Define and use fields and methods, including instance, static and overloaded methods
- Secure resource access including filesystems, manage policies and execute privileged code
- 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
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
How much Java SE 11 Developer Exam Number: 1Z0-819 costs
- Examination Name: Java SE 11 Developer Exam Number: 1Z0-819
- Examination Fees: $250 USD
- Length of Exam: 85 min
- Types of questions: Performance Based Questions
- Passing Score: 60% or higher
- No. of Questions: 60 Questions
How to book the Java SE 11 Developer Exam Number: 1Z0-819
You register with an Oracle partner pearsonvue.com, tie your Oracle account, choose whether you want to pass in the center or from home. If you choose the option from home, you will be followed through the camera and microphone throughout the exam, there should be no one in the room, you can not talk to anyone and look only at the screen, the Internet must be stable, without troubles, otherwise, the result will be canceled.
Oracle 1Z0-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Working with Java data types | 12% | - Manipulate data using the StringBuilder class and its methods - Differentiate between object reference variables and primitive variables - Declare and initialize variables - Read or write to object fields - Call methods on objects - Create and manipulate strings - Explain an object's lifecycle (creation, dereferencing via garbage collection) |
| Topic 2: Java Platform Module System | 10% | - Explain the concept of module exports and requires - Explain the default modules and class path - Deploy and execute modules - Declare module dependencies - Migrate applications to use modules - Use jdeps to determine dependencies |
| Topic 3: Controlling Program Flow | 10% | - Use Java control statements - Use switch statements - Use if and if/else statements - Use for, while, and do/while loops - Use break and continue statements |
| Topic 4: Database Applications with JDBC | 5% | - Connect to a database using JDBC - Execute queries and process results - Use parameterized queries - Describe the advantages of using a connection pool |
| Topic 5: 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 |
| Topic 6: Working with Arrays and Collections | 8% | - Sort elements in a collection - Search for elements in a collection - Use generic types and diamond operator - Iterate through a collection - Filter a collection using lambda expressions - Create a list, set, map, or queue collection |
| Topic 7: 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 |
| Topic 8: Exception Handling and Localization | 10% | - Use assertions - Create try-catch blocks and understand exception propagation - Create and throw custom exceptions - Use standard exception classes - Use resource bundles and locale classes for internationalization - Describe the advantages of exception handling |
| Topic 9: Working with Java OOP | 15% | - Implement polymorphism - Implement encapsulation - Apply the final keyword to classes, methods, and fields - Implement inheritance - Use abstract classes and interfaces - Create inner classes and use them within other classes - Apply the static keyword to methods and fields |
| Topic 10: Working with Streams and Lambda expressions | 13% | - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Describe the Stream interface and pipeline - Use method references with streams - Filter a collection using lambda expressions - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions |
| Topic 11: Annotations | 5% | - Apply standard annotations to classes and methods - Create custom annotations - Describe the purpose of annotations |
| Topic 12: Concurrency | 10% | - Create worker threads using Runnable and Thread objects - Identify potential threading problems - Use parallel streams to improve performance - Use synchronized blocks and the volatile keyword - Use ExecutorService to concurrently execute tasks - Use java.util.concurrent atomic classes and ForkJoinPool |
