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How much Java SE 11 Developer Exam Number: 1Z0-819 costs
- Examination Name: Java SE 11 Developer Exam Number: 1Z0-819
- Length of Exam: 85 min
- No. of Questions: 60 Questions
- Passing Score: 60% or higher
- Types of questions: Performance Based Questions
- Examination Fees: $250 USD
Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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.
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The following will be discussed in the ORACLE 1Z0-006 exam dumps pdf:
- Use Java Streams to filter, transform and process data
- Sort collections and arrays using Comparator and Comparable interfaces
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
- Use a Java array and List, Set, Map and Deque collections, including convenience methods
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
- Use generics, including wildcards
Oracle 1Z0-819日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Annotations | 5% | - Create custom annotations - Apply standard annotations to classes and methods - Describe the purpose of annotations |
| 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 |
| Secure Coding in Java SE Application | 5% | - Validate user input - Prevent SQL injection and other attacks - Prevent Denial of Service (DoS) attacks - Secure sensitive data |
| Concurrency | 10% | - Use synchronized blocks and the volatile keyword - Use java.util.concurrent atomic classes and ForkJoinPool - Identify potential threading problems - Use ExecutorService to concurrently execute tasks - Use parallel streams to improve performance - Create worker threads using Runnable and Thread objects |
| Working with Java data types | 12% | - Declare and initialize variables - Read or write to object fields - Differentiate between object reference variables and primitive variables - Manipulate data using the StringBuilder class and its methods - Create and manipulate strings - Call methods on objects - Explain an object's lifecycle (creation, dereferencing via garbage collection) |
| Controlling Program Flow | 10% | - Use switch statements - Use if and if/else statements - Use break and continue statements - Use Java control statements - Use for, while, and do/while loops |
| Working with Java OOP | 15% | - Implement encapsulation - Implement polymorphism - Apply the final keyword to classes, methods, and fields - Create inner classes and use them within other classes - Use abstract classes and interfaces - Implement inheritance - Apply the static keyword to methods and fields |
| Exception Handling and Localization | 10% | - Create and throw custom exceptions - Use standard exception classes - Use assertions - Use resource bundles and locale classes for internationalization - Describe the advantages of exception handling - Create try-catch blocks and understand exception propagation |
| Working with Streams and Lambda expressions | 13% | - Use method references with streams - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Filter a collection using lambda expressions - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions - Describe the Stream interface and pipeline |
| 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 |
| Java Platform Module System | 10% | - Explain the concept of module exports and requires - Migrate applications to use modules - Declare module dependencies - Use jdeps to determine dependencies - Explain the default modules and class path - Deploy and execute modules |
| Working with Arrays and Collections | 8% | - Search for elements in a collection - Iterate through a collection - Create a list, set, map, or queue collection - Sort elements in a collection - Filter a collection using lambda expressions - Use generic types and diamond operator |
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