Oracle Java SE 11 Programmer I : 1Z0-815

  • Exam Code: 1Z0-815
  • Exam Name: Java SE 11 Programmer I
  • Q & A: 125 Questions and Answers

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How to Prepare For 1Z0-815:Java SE 11 Programmer Exam

Preparation Guide for 1Z0-815:Java SE 11 Programmer Exam

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Topics of 1Z0-815:Java SE 11 Programmer Exam

Candidates must know the exam topics before they start of preparation. because it will really help them in hitting the core. Our 1Z0-815 Java exam dumps will include the following topics:

1. Understanding Java Technology and environment

  • Describe Java Technology and the Java development
  • Identify key features of the Java language

2. Working With Java Primitive Data Types and String APIs

  • Create and manipulate Strings
  • Manipulate data using the StringBuilder class and its methods
  • Use local variable type inference
  • Declare and initialize variables (including casting and promoting primitive data types)
  • Identify the scope of variables

3. Working with Java Arrays

  • Declare, instantiate, initialize and use a one-dimensional array
  • Declare, instantiate, initialize and use a two-dimensional array

4. Creating and Using Methods

  • Create and invoke overloaded methods
  • Create methods and constructors with arguments and return values
  • Apply the static keyword to methods and fields

5. Reusing Implementations Through Inheritance

  • Enable polymorphism by overriding methods
  • Distinguish overloading, overriding, and hiding
  • Create and extend abstract classes
  • Create and use subclasses and superclasses
  • Utilize polymorphism to cast and call methods, differentiating object type versus reference type

6. Handling Exceptions

  • Create try-catch blocks and determine how exceptions alter program flow
  • Create and invoke a method that throws an exception
  • Describe the advantages of Exception handling and differentiate among checked, unchecked exceptions, and Errors

7. Creating a Simple Java Program

  • Create and import packages
  • Create an executable Java program with a main class
  • Compile and run a Java program from the command line

8. Using Operators and Decision Constructs

  • Use Java operators including the use of parentheses to override operator precedence
  • Create and use do/while, while, for and for each loops, including nested loops, use break and continue statements
  • Use Java control statements including if, if/else, switch

9. Describing and Using Objects and Classes

  • Define the structure of a Java class
  • Declare and instantiate Java objects, and explain objects' lifecycles (including creation, dereferencing by reassignment, and garbage collection)
  • Read or write to object fields

10. Applying Encapsulation

  • Apply encapsulation principles to a class
  • Apply access modifiers

11. Programming Abstractly Through Interfaces

  • Declare and use List and ArrayList instances
  • Understanding Lambda Expressions
  • Distinguish class inheritance from interface inheritance including abstract classes
  • Create and implement interfaces

12. Understanding Modules

  • Declare modules and enable access between modules
  • Describe the Modular JDK
  • Describe how a modular project is compiled and run

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