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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 |
|---|---|---|
| Topic 1: Controlling Program Flow | 10% | - Use switch statements - Use break and continue statements - Use Java control statements - Use for, while, and do/while loops - Use if and if/else statements |
| Topic 2: I/O (Fundamentals and NIO2) | 7% | - Use Stream API with files - Read and write console and file input/output using Java I/O system - Use NIO2 API to work with file systems and file attributes - Use Path interface to manipulate file paths |
| Topic 3: Secure Coding in Java SE Application | 5% | - Prevent Denial of Service (DoS) attacks - Secure sensitive data - Validate user input - Prevent SQL injection and other attacks |
| Topic 4: Working with Streams and Lambda expressions | 13% | - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods - Use method references with streams - Filter a collection using lambda expressions - Use the Stream API to perform terminal operations - Use functional interfaces with lambda expressions - Describe the Stream interface and pipeline |
| Topic 5: Java Platform Module System | 10% | - Explain the concept of module exports and requires - Migrate applications to use modules - Explain the default modules and class path - Declare module dependencies - Use jdeps to determine dependencies - Deploy and execute modules |
| Topic 6: Database Applications with JDBC | 5% | - Use parameterized queries - Connect to a database using JDBC - Describe the advantages of using a connection pool - Execute queries and process results |
| Topic 7: Working with Java data types | 12% | - Differentiate between object reference variables and primitive variables - Declare and initialize variables - Read or write to object fields - Call methods on objects - Manipulate data using the StringBuilder class and its methods - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Create and manipulate strings |
| Topic 8: Working with Arrays and Collections | 8% | - Use generic types and diamond operator - Filter a collection using lambda expressions - Create a list, set, map, or queue collection - Iterate through a collection - Search for elements in a collection - Sort elements in a collection |
| Topic 9: Exception Handling and Localization | 10% | - Use resource bundles and locale classes for internationalization - Create try-catch blocks and understand exception propagation - Describe the advantages of exception handling - Use standard exception classes - Use assertions - Create and throw custom exceptions |
| Topic 10: Concurrency | 10% | - Use ExecutorService to concurrently execute tasks - Create worker threads using Runnable and Thread objects - Use parallel streams to improve performance - Use synchronized blocks and the volatile keyword - Use java.util.concurrent atomic classes and ForkJoinPool - Identify potential threading problems |
| Topic 11: Working with Java OOP | 15% | - Apply the static keyword to methods and fields - Use abstract classes and interfaces - Implement inheritance - Apply the final keyword to classes, methods, and fields - Implement encapsulation - Create inner classes and use them within other classes - Implement polymorphism |
| Topic 12: Annotations | 5% | - Describe the purpose of annotations - Apply standard annotations to classes and methods - Create custom annotations |
