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Oracle 1Z0-819 exam : Java SE 11 Developer

1Z0-819 Exam Simulator
  • Exam Code: 1Z0-819
  • Exam Name: Java SE 11 Developer
  • Updated: Aug 21, 2026
  • Q & A: 297 Questions and Answers
  • Oracle 1Z0-819 Q&A - in .pdf

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About Oracle 1Z0-819 Exam Simulator

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:

  • Sort collections and arrays using Comparator and Comparable interfaces
  • Use Java Streams to filter, transform and process data
  • 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
  • Use generics, including wildcards
  • 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
  • Develop thread-safe code, using different locking mechanisms and java.util.concurrent API

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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:

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

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

Oracle 1Z0-819 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Concurrency10%- Use synchronized blocks and the volatile keyword
- Identify potential threading problems
- Use ExecutorService to concurrently execute tasks
- Use parallel streams to improve performance
- Create worker threads using Runnable and Thread objects
- Use java.util.concurrent atomic classes and ForkJoinPool
Topic 2: Annotations5%- Describe the purpose of annotations
- Apply standard annotations to classes and methods
- Create custom annotations
Topic 3: Working with Java data types12%- Differentiate between object reference variables and primitive variables
- Declare and initialize variables
- Read or write to object fields
- Create and manipulate strings
- Call methods on objects
- Manipulate data using the StringBuilder class and its methods
- Explain an object's lifecycle (creation, dereferencing via garbage collection)
Topic 4: Secure Coding in Java SE Application5%- Prevent SQL injection and other attacks
- Secure sensitive data
- Validate user input
- Prevent Denial of Service (DoS) attacks
Topic 5: I/O (Fundamentals and NIO2)7%- 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
- Use Stream API with files
Topic 6: Working with Streams and Lambda expressions13%- Use method references with streams
- Describe the Stream interface and pipeline
- Use the Stream API to perform terminal operations
- Filter a collection using lambda expressions
- Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods
- Use functional interfaces with lambda expressions
Topic 7: Java Platform Module System10%- Explain the concept of module exports and requires
- Use jdeps to determine dependencies
- Migrate applications to use modules
- Deploy and execute modules
- Explain the default modules and class path
- Declare module dependencies
Topic 8: Database Applications with JDBC5%- Use parameterized queries
- Execute queries and process results
- Describe the advantages of using a connection pool
- Connect to a database using JDBC
Topic 9: Exception Handling and Localization10%- Create try-catch blocks and understand exception propagation
- Use resource bundles and locale classes for internationalization
- Use standard exception classes
- Create and throw custom exceptions
- Describe the advantages of exception handling
- Use assertions
Topic 10: Working with Arrays and Collections8%- Filter a collection using lambda expressions
- Search for elements in a collection
- Iterate through a collection
- Use generic types and diamond operator
- Sort elements in a collection
- Create a list, set, map, or queue collection
Topic 11: Controlling Program Flow10%- Use for, while, and do/while loops
- Use switch statements
- Use Java control statements
- Use break and continue statements
- Use if and if/else statements
Topic 12: Working with Java OOP15%- Use abstract classes and interfaces
- Implement encapsulation
- Apply the final keyword to classes, methods, and fields
- Create inner classes and use them within other classes
- Implement inheritance
- Apply the static keyword to methods and fields
- Implement polymorphism

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