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Java SE 11 Developer: 1z1-819 Exam
"Java SE 11 Developer", also known as 1z1-819 exam, is a Oracle Certification. With the complete collection of questions and answers, BraindumpsPass has assembled to take you through 297 Q&As to your 1z1-819 Exam preparation. In the 1z1-819 exam resources, you will cover every field and category in Oracle Java SE Certification helping to ready you for your successful Oracle Certification.
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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:
- Develop thread-safe code, using different locking mechanisms and java.util.concurrent API
- Use generics, including wildcards
- Sort collections and arrays using Comparator and Comparable interfaces
- Use a Java array and List, Set, Map and Deque collections, including convenience methods
- Create worker threads using Runnable and Callable, and manage concurrency using an ExecutorService and java.util.concurrent API
- Use Java Streams to filter, transform and process data
- Perform decomposition and reduction, including grouping and partitioning on sequential and parallel streams
- Implement functional interfaces using lambda expressions, including interfaces from the java.util.function package
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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Reference: https://education.oracle.com/java-se-11-developer/pexam_1Z0-819?intcmp=WWOUBLOGPOSTLADJAVA082913
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Oracle 1z1-819 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Exception Handling and Localization | 10% | - Use resource bundles and locale classes for internationalization - Describe the advantages of exception handling - Create try-catch blocks and understand exception propagation - Use standard exception classes - Create and throw custom exceptions - Use assertions |
| Working with Streams and Lambda expressions | 13% | - Describe the Stream interface and pipeline - Use functional interfaces with lambda expressions - Filter a collection using lambda expressions - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use the Stream API to perform terminal operations - Use method references with streams |
| Secure Coding in Java SE Application | 5% | - Validate user input - Secure sensitive data - Prevent Denial of Service (DoS) attacks - Prevent SQL injection and other attacks |
| Database Applications with JDBC | 5% | - Connect to a database using JDBC - Use parameterized queries - Execute queries and process results - Describe the advantages of using a connection pool |
| Working with Java data types | 12% | - Call methods on objects - Differentiate between object reference variables and primitive variables - Declare and initialize variables - Create and manipulate strings - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Manipulate data using the StringBuilder class and its methods - Read or write to object fields |
| Working with Java OOP | 15% | - Implement inheritance - Use abstract classes and interfaces - Implement polymorphism - Apply the static keyword to methods and fields - Implement encapsulation - Apply the final keyword to classes, methods, and fields - Create inner classes and use them within other classes |
| I/O (Fundamentals and NIO2) | 7% | - Use NIO2 API to work with file systems and file attributes - Use Stream API with files - Use Path interface to manipulate file paths - Read and write console and file input/output using Java I/O system |
| Concurrency | 10% | - Identify potential threading problems - Use synchronized blocks and the volatile keyword - Use ExecutorService to concurrently execute tasks - Create worker threads using Runnable and Thread objects - Use java.util.concurrent atomic classes and ForkJoinPool - Use parallel streams to improve performance |
| Annotations | 5% | - Apply standard annotations to classes and methods - Create custom annotations - Describe the purpose of annotations |
| Working with Arrays and Collections | 8% | - Search for elements in a collection - Filter a collection using lambda expressions - Iterate through a collection - Sort elements in a collection - Use generic types and diamond operator - Create a list, set, map, or queue collection |
| Controlling Program Flow | 10% | - Use break and continue statements - Use if and if/else statements - Use switch statements - Use for, while, and do/while loops - Use Java control statements |
| Java Platform Module System | 10% | - Migrate applications to use modules - Declare module dependencies - Explain the concept of module exports and requires - Use jdeps to determine dependencies - Explain the default modules and class path - Deploy and execute modules |
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