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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 pdf:

  • Use a Java array and List, Set, Map and Deque collections, including convenience methods
  • Use Java Streams to filter, transform and process data
  • Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
  • Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
  • Sort collections and arrays using Comparator and Comparable interfaces
  • Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
  • Use generics, including wildcards
  • Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams

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

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

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Oracle 1Z0-819 Exam Syllabus Topics:

SectionWeightObjectives
Working with Java data types12%- Manipulate data using the StringBuilder class and its methods
- Call methods on objects
- Declare and initialize variables
- Read or write to object fields
- Differentiate between object reference variables and primitive variables
- Create and manipulate strings
- Explain an object's lifecycle (creation, dereferencing via garbage collection)
Annotations5%- Apply standard annotations to classes and methods
- Describe the purpose of annotations
- Create custom annotations
Java Platform Module System10%- Use jdeps to determine dependencies
- Declare module dependencies
- Migrate applications to use modules
- Deploy and execute modules
- Explain the concept of module exports and requires
- Explain the default modules and class path
I/O (Fundamentals and NIO2)7%- Read and write console and file input/output using Java I/O system
- Use Path interface to manipulate file paths
- Use NIO2 API to work with file systems and file attributes
- Use Stream API with files
Concurrency10%- Use parallel streams to improve performance
- Use ExecutorService to concurrently execute tasks
- Identify potential threading problems
- Create worker threads using Runnable and Thread objects
- Use java.util.concurrent atomic classes and ForkJoinPool
- Use synchronized blocks and the volatile keyword
Working with Streams and Lambda expressions13%- Use functional interfaces with lambda expressions
- Describe the Stream interface and pipeline
- Use method references with streams
- Filter a collection using lambda expressions
- Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods
- Use the Stream API to perform terminal operations
Controlling Program Flow10%- Use for, while, and do/while loops
- Use switch statements
- Use break and continue statements
- Use Java control statements
- Use if and if/else statements
Exception Handling and Localization10%- Use assertions
- Create try-catch blocks and understand exception propagation
- Create and throw custom exceptions
- Use resource bundles and locale classes for internationalization
- Use standard exception classes
- Describe the advantages of exception handling
Database Applications with JDBC5%- Execute queries and process results
- Describe the advantages of using a connection pool
- Connect to a database using JDBC
- Use parameterized queries
Secure Coding in Java SE Application5%- Validate user input
- Prevent SQL injection and other attacks
- Prevent Denial of Service (DoS) attacks
- Secure sensitive data
Working with Arrays and Collections8%- Create a list, set, map, or queue collection
- Sort elements in a collection
- Use generic types and diamond operator
- Iterate through a collection
- Search for elements in a collection
- Filter a collection using lambda expressions
Working with Java OOP15%- Implement inheritance
- Apply the final keyword to classes, methods, and fields
- Create inner classes and use them within other classes
- Use abstract classes and interfaces
- Apply the static keyword to methods and fields
- Implement polymorphism
- Implement encapsulation

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