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The following will be discussed in the ORACLE 1Z0-006 exam dumps:
- Develop code that mitigates security threats such as denial of service, code injection, input validation and ensure data integrity
- Secure resource access including filesystems, manage policies and execute privileged code
- Define and use fields and methods, including instance, static and overloaded methods
- Create and use interfaces, identify functional interfaces, and utilize private, static, and default methods
- Understand variable scopes, apply encapsulation and make objects immutable
- Create and use subclasses and superclasses, including abstract classes
- Create and use enumerations
- Declare and instantiate Java objects including nested class objects, and explain objects' - lifecycles (including creation, dereferencing by reassignment, and garbage collection)
- Utilize polymorphism and casting to call methods, differentiate object type versus reference type
- Initialize objects and their members using instance and static initialiser statements and constructors
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 |
|---|---|---|
| Database Applications with JDBC | 5% | - Describe the advantages of using a connection pool - Connect to a database using JDBC - Execute queries and process results - Use parameterized queries |
| Controlling Program Flow | 10% | - Use switch statements - Use for, while, and do/while loops - Use if and if/else statements - Use break and continue statements - Use Java control statements |
| I/O (Fundamentals and NIO2) | 7% | - Use NIO2 API to work with file systems and file attributes - Use Stream API with files - Read and write console and file input/output using Java I/O system - Use Path interface to manipulate file paths |
| Working with Streams and Lambda expressions | 13% | - Describe the Stream interface and pipeline - Use functional interfaces with lambda expressions - Use the Stream API to perform terminal operations - Filter a collection using lambda expressions - Use method references with streams - Perform decomposition using the reduce(), collect(), partition(), and groupingBy() methods |
| Annotations | 5% | - Apply standard annotations to classes and methods - Create custom annotations - Describe the purpose of annotations |
| Concurrency | 10% | - Create worker threads using Runnable and Thread objects - Use synchronized blocks and the volatile keyword - Use ExecutorService to concurrently execute tasks - Use java.util.concurrent atomic classes and ForkJoinPool - Identify potential threading problems - Use parallel streams to improve performance |
| Secure Coding in Java SE Application | 5% | - Secure sensitive data - Prevent SQL injection and other attacks - Prevent Denial of Service (DoS) attacks - Validate user input |
| Working with Arrays and Collections | 8% | - Use generic types and diamond operator - Filter a collection using lambda expressions - Search for elements in a collection - Create a list, set, map, or queue collection - Sort elements in a collection - Iterate through a collection |
| Working with Java data types | 12% | - Declare and initialize variables - Differentiate between object reference variables and primitive variables - Manipulate data using the StringBuilder class and its methods - Explain an object's lifecycle (creation, dereferencing via garbage collection) - Read or write to object fields - Create and manipulate strings - Call methods on objects |
| Working with Java OOP | 15% | - Apply the static keyword to methods and fields - Apply the final keyword to classes, methods, and fields - Use abstract classes and interfaces - Implement polymorphism - Create inner classes and use them within other classes - Implement inheritance - Implement encapsulation |
| Java Platform Module System | 10% | - Declare module dependencies - Explain the default modules and class path - Migrate applications to use modules - Explain the concept of module exports and requires - Deploy and execute modules - Use jdeps to determine dependencies |
| Exception Handling and Localization | 10% | - Use standard exception classes - Use resource bundles and locale classes for internationalization - Use assertions - Create try-catch blocks and understand exception propagation - Describe the advantages of exception handling - Create and throw custom exceptions |
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