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Oracle 1z1-819 Q&A - in .pdf
Oracle 1z1-819 Value Pack
(Actual Exam Collection)
- Exam Code: 1z1-819
- Exam Name: Java SE 11 Developer
Online Testing Engine supports Windows / Mac / Android / iOS, etc., because it is the software based on WEB browser.- If you purchase Oracle 1z1-819 Value Pack, you will also own the free online Testing Engine.
- Updated: Aug 16, 2026
- Q & A: 297 Questions and Answers
- 1z1-819 PDF + PC Testing Engine + Online Testing Engine
- Value Pack Total: $119.98 $79.99
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Oracle 1z1-819 Q&A - Testing Engine
- Exam Code: 1z1-819
- Exam Name: Java SE 11 Developer
- Updated: Aug 16, 2026
- Q & A: 297 Questions and Answers
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Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
Exam Topic for Java SE 11 Developer Exam Number: 1Z0-819
The following will be discussed in ORACLE 1Z0-006 exam dumps:
- Working with Arrays and Collections
- Annotations
- Java Platform Module System
- Java Object-Oriented Approach
- Working with Java data types
- Java I/O API
- Database Applications with JDBC
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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
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Oracle 1z1-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Secure Coding in Java SE Application | 5% | - Prevent SQL injection and other attacks - Secure sensitive data - Validate user input - Prevent Denial of Service (DoS) attacks |
| 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 |
| Java Platform Module System | 10% | - Explain the concept of module exports and requires - Declare module dependencies - Deploy and execute modules - Explain the default modules and class path - Use jdeps to determine dependencies - Migrate applications to use modules |
| Database Applications with JDBC | 5% | - Connect to a database using JDBC - Describe the advantages of using a connection pool - Use parameterized queries - Execute queries and process results |
| Concurrency | 10% | - Use ExecutorService to concurrently execute tasks - Identify potential threading problems - Use parallel streams to improve performance - Use synchronized blocks and the volatile keyword - Use java.util.concurrent atomic classes and ForkJoinPool - Create worker threads using Runnable and Thread objects |
| Working with Java data types | 12% | - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Differentiate between object reference variables and primitive variables - Read or write to object fields - Manipulate data using the StringBuilder class and its methods - Declare and initialize variables - Create and manipulate strings - Call methods on objects |
| Working with Streams and Lambda expressions | 13% | - Filter a collection using lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Describe the Stream interface and pipeline - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions - Use method references with streams |
| Working with Arrays and Collections | 8% | - Filter a collection using lambda expressions - Use generic types and diamond operator - Iterate through a collection - Search for elements in a collection - Create a list, set, map, or queue collection - Sort elements in a collection |
| Controlling Program Flow | 10% | - Use switch statements - Use Java control statements - Use break and continue statements - Use if and if/else statements - Use for, while, and do/while loops |
| Exception Handling and Localization | 10% | - Use assertions - Describe the advantages of exception handling - Create try-catch blocks and understand exception propagation - Use resource bundles and locale classes for internationalization - Create and throw custom exceptions - Use standard exception classes |
| Annotations | 5% | - Describe the purpose of annotations - Create custom annotations - Apply standard annotations to classes and methods |
| Working with Java OOP | 15% | - Use abstract classes and interfaces - Implement encapsulation - Implement polymorphism - Apply the final keyword to classes, methods, and fields - Implement inheritance - Create inner classes and use them within other classes - Apply the static keyword to methods and fields |
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