Java Certification (1Z0-815) Topic-wise Tests

Based on the curriculum outlined for Java SE Certification (1Z0-815), let's delve into each topic and understand what is expected from you as a candidate. Here's a detailed breakdown of the topics covered in Tests 2, 3, 4, 5, and 6:

Test 2: Operators, Decision Constructs, and Loops

• Using Operators and Decision Constructs: You should be able to use arithmetic, relational, logical, assignment, and other operators, as well as if, if/else, and switch statements.
• Loops: Understand how to create and use do/while, while, for, and enhanced for each loops. Know the use of break and continue statements within these loops.

Test 3: Objects, Classes, and Methods

• Objects and Classes: Create and instantiate Java objects, understand their lifecycle (creation, usage, reassignment, garbage collection).
• Classes: Define the structure of a Java class, including fields and methods.
• Methods: Create methods with various parameters, overloaded methods, static methods and fields, and understand method scope.
• Encapsulation: Apply access modifiers to protect object state and apply encapsulation principles to classes.

Test 4: Inheritance, Interfaces, and Collections

• Inheritance: Create subclasses and superclasses, use abstract classes to define common behavior.
• Interfaces: Create and implement interfaces, understand the differences between class inheritance and interface inheritance.
• Collections: Use List and ArrayList interfaces to store collections of objects.
• Lambda Expressions: Understand how lambda expressions can be used in functional programming contexts.

Test 5: Exception Handling

• Exception Handling: Describe the advantages, differentiate between checked vs. unchecked exceptions and Errors.
• Try-Catch Blocks: Create and use try-catch blocks to handle exceptions, understand how exceptions alter program flow.
• Throwing Exceptions: Create methods that can throw exceptions.

Test 6: Java Modular System (Module System)

• Modules: Declare modules, describe the modular JDK, enable access between modules, and understand how a modular project is compiled and run.

For each of these tests, you should have a solid understanding of the concepts and be able to apply them in practical coding scenarios. Remember that the actual exam questions will vary, but they will test your knowledge and skills according to these objectives.

It's also important to note that the Oracle Certification exams are designed to assess not only your knowledge of Java syntax and libraries but also your problem-solving abilities using the Java programming language. Therefore, practice coding problems, not just theoretical questions.

Good luck with your preparation for the Java SE Certification (1Z0-815) exam!