How to book the Java SE 11 Developer Exam Number: 1Z0-819

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How much Java SE 11 Developer Exam Number: 1Z0-819 costs

Examination Fees: $250 USD
Passing Score: 60% or higher
No. of Questions: 60 Questions
Types of questions: Performance Based Questions
Length of Exam: 85 min
Examination Name: Java SE 11 Developer Exam Number: 1Z0-819

Oracle 1z1-819 Exam Syllabus Topics:

Section	Weight	Objectives
Annotations	5%	- Apply standard annotations to classes and methods - Create custom annotations - Describe the purpose of annotations
Working with Arrays and Collections	8%	- Sort elements in a collection - Use generic types and diamond operator - Filter a collection using lambda expressions - Iterate through a collection - Search for elements in a collection - Create a list, set, map, or queue collection
Exception Handling and Localization	10%	- Use resource bundles and locale classes for internationalization - Describe the advantages of exception handling - Use standard exception classes - Use assertions - Create and throw custom exceptions - Create try-catch blocks and understand exception propagation
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
Java Platform Module System	10%	- Deploy and execute modules - Declare module dependencies - Migrate applications to use modules - Explain the concept of module exports and requires - Use jdeps to determine dependencies - Explain the default modules and class path
Working with Java data types	12%	- Call methods on objects - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables - Create and manipulate strings - Read or write to object fields - Differentiate between object reference variables and primitive variables - Explain an object's lifecycle (creation, dereferencing via garbage collection)
Working with Java OOP	15%	- Implement inheritance - Implement polymorphism - Create inner classes and use them within other classes - Use abstract classes and interfaces - Apply the static keyword to methods and fields - Implement encapsulation - Apply the final keyword to classes, methods, and fields
Working with Streams and Lambda expressions	13%	- Use functional interfaces with lambda expressions - Use the Stream API to perform terminal operations - Filter a collection using lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Describe the Stream interface and pipeline - Use method references with streams
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
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
Concurrency	10%	- Use synchronized blocks and the volatile keyword - Use ExecutorService to concurrently execute tasks - Identify potential threading problems - Create worker threads using Runnable and Thread objects - Use parallel streams to improve performance - Use java.util.concurrent atomic classes and ForkJoinPool
Controlling Program Flow	10%	- Use for, while, and do/while loops - Use Java control statements - Use if and if/else statements - Use switch statements - Use break and continue statements