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:

Define and use fields and methods, including instance, static and overloaded methods
Create and use subclasses and superclasses, including abstract classes
Declare and instantiate Java objects including nested class objects, and explain objects' - lifecycles (including creation, dereferencing by reassignment, and garbage collection)
Develop code that mitigates security threats such as denial of service, code injection, input validation and ensure data integrity
Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
Understand variable scopes, apply encapsulation and make objects immutable
Initialize objects and their members using instance and static initialiser statements and constructors
Create and use enumerations
Secure resource access including filesystems, manage policies and execute privileged code
Utilize polymorphism and casting to call methods, differentiate object type versus reference type

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

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

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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:

Define and use fields and methods, including instance, static and overloaded methods
Create and use subclasses and superclasses, including abstract classes
Create, apply, and process annotations
Deploy and execute modular applications, including automatic modules
Connect to and perform database SQL operations, process query results using JDBC API Annotations
Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
Declare, use, and expose modules, including the use of services
Understand variable scopes, apply encapsulation and make objects immutable
Implement serialization and deserialization techniques on Java objects
Declare and instantiate Java objects including nested class objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
Initialize objects and their members using instance and static initialiser statements and constructors
Read and write console and file data using I/O Streams
Create and use enumerations
Handle file system objects using java.nio.file API
Utilize polymorphism and casting to call methods, differentiate object type versus reference type

Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913

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:

Use local variable type inference, including as lambda parameters
Handle text using String and StringBuilder classes
Use primitives and wrapper classes, including, operators, parentheses, type promotion and casting

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Oracle 1z1-819 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Exception Handling and Localization	10%	- Use standard exception classes - Use resource bundles and locale classes for internationalization - Create and throw custom exceptions - Use assertions - Describe the advantages of exception handling - Create try-catch blocks and understand exception propagation
Topic 2: I/O (Fundamentals and NIO2)	7%	- Use Stream API with files - Use Path interface to manipulate file paths - Use NIO2 API to work with file systems and file attributes - Read and write console and file input/output using Java I/O system
Topic 3: Database Applications with JDBC	5%	- Describe the advantages of using a connection pool - Use parameterized queries - Execute queries and process results - Connect to a database using JDBC
Topic 4: Controlling Program Flow	10%	- Use for, while, and do/while loops - Use if and if/else statements - Use switch statements - Use break and continue statements - Use Java control statements
Topic 5: Java Platform Module System	10%	- Deploy and execute modules - Migrate applications to use modules - Explain the default modules and class path - Use jdeps to determine dependencies - Explain the concept of module exports and requires - Declare module dependencies
Topic 6: Working with Arrays and Collections	8%	- Create a list, set, map, or queue collection - Filter a collection using lambda expressions - Sort elements in a collection - Iterate through a collection - Use generic types and diamond operator - Search for elements in a collection
Topic 7: 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
Topic 8: Concurrency	10%	- Use java.util.concurrent atomic classes and ForkJoinPool - Use synchronized blocks and the volatile keyword - Create worker threads using Runnable and Thread objects - Use ExecutorService to concurrently execute tasks - Use parallel streams to improve performance - Identify potential threading problems
Topic 9: Working with Java OOP	15%	- Create inner classes and use them within other classes - Implement encapsulation - Implement polymorphism - Implement inheritance - Apply the final keyword to classes, methods, and fields - Apply the static keyword to methods and fields - Use abstract classes and interfaces
Topic 10: 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 - Use the Stream API to perform terminal operations - Describe the Stream interface and pipeline - Use method references with streams
Topic 11: Working with Java data types	12%	- Differentiate between object reference variables and primitive variables - Read or write to object fields - Call methods on objects - Create and manipulate strings - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables - Explain an object's lifecycle (creation, dereferencing via garbage collection)
Topic 12: Annotations	5%	- Apply standard annotations to classes and methods - Create custom annotations - Describe the purpose of annotations