Java SE 8 Programmer I 1Z0-808 Practice Exam

The Java SE 8 Programmer I (1Z0-808) is an entry-level certification exam from Oracle that evaluates a candidate’s understanding of Java Standard Edition 8 (SE 8) and basic object-oriented programming principles. The exam focuses on core Java concepts such as Java syntax, control flow, data types, loops, arrays, and object-oriented programming (OOP) fundamentals. It is the first step toward becoming a certified Java programmer and provides a foundational understanding of the Java programming language.
Why is Java SE 8 Programmer I 1Z0-808 important?

• Provides a solid foundation in Java programming.
• Validates the candidate's knowledge of core Java concepts and syntax.
• Prepares individuals for advanced Java certifications and programming tasks.
• Increases employability by demonstrating basic Java skills.
• Helps developers understand Java's object-oriented features, such as inheritance and encapsulation.
• Essential for professionals aiming to specialize in Java development.
• Forms the basis for developing full-stack Java applications.

Who should take the Java SE 8 Programmer I 1Z0-808 Exam?

• Java Developers
• Junior Software Engineers
• Entry-Level Programmers
• Android Developers
• Web Developers using Java as a back-end language
• System Engineers working with Java-based applications
• Students or professionals transitioning into Java development

Skills Evaluated

Candidates taking the certification exam on the Java SE 8 Programmer I 1Z0-808 is evaluated for the following skills:

• Basic Java syntax, operators, and control structures
• Object-oriented programming concepts like inheritance, encapsulation, and polymorphism
• Understanding of Java classes, interfaces, and methods
• Usage of Java arrays, loops, and exception handling
• Working with basic Java APIs for strings, dates, and I/O
• Knowledge of lambda expressions and functional programming basics
• Handling of data types, operators, and object references
• Managing access control and class design in Java

Java SE 8 Programmer I 1Z0-808 Certification Course Outline
The Java SE 8 Programmer I 1Z0-808 Certification covers the following topics -

Section 1. Java Basics

• Define the scope of variables

• Define the structure of a Java class

• Create executable Java applications with a main method; run a Java program from the command line; produce console output

• Import other Java packages to make them accessible in your code

• Compare and contrast the features and components of Java such as: platform independence, object orientation, encapsulation, etc.

Section 2. Working With Java Data Types

• Declare and initialize variables (including casting of primitive data types)

• Differentiate between object reference variables and primitive variables

• Know how to read or write to object fields

• Explain an Object's Lifecycle (creation, "dereference by reassignment" and garbage collection)

• Develop code that uses wrapper classes such as Boolean, Double, and Integer

Section 3. Using Operators and Decision Constructs

• Use Java operators; use parentheses to override operator precedence

• Test equality between Strings and other objects using == and equals ()

• Create if and if/else and ternary constructs

• Use a switch statement

Section 4. Creating and Using Arrays

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

• Declare, instantiate, initialize and use multi-dimensional arrays

Section 5. Using Loop Constructs

• Create and use while loops

• Create and use for loops including the enhanced for loop

• Create and use do/while loops

• Compare loop constructs

• Use break and continue

Section 6. Working with Methods and Encapsulation

• Create methods with arguments and return values; including overloaded methods

• Apply the static keyword to methods and fields

• Create and overload constructors; differentiate between default and user defined constructors

• Apply access modifiers

• Apply encapsulation principles to a class

• Determine the effect upon object references and primitive values when they are passed into methods that change the values

Section 7. Working with Inheritance

• Describe inheritance and its benefits

• Develop code that makes use of polymorphism; develop code that overrides methods; differentiate between the type of a reference and the type of an object

• Determine when casting is necessary

• Use super and this to access objects and constructors

• Use abstract classes and interfaces

Section 8. Handling Exceptions

• Differentiate among checked exceptions, unchecked exceptions, and Errors

• Create a try-catch block and determine how exceptions alter normal program flow

• Describe the advantages of Exception handling

• Create and invoke a method that throws an exception

• Recognize common exception classes (such as NullPointerException, ArithmeticException, ArrayIndexOutOfBoundsException, ClassCastException)

Section 9. Working with Selected classes from the Java API

• Manipulate data using the StringBuilder class and its methods

• Create and manipulate Strings

• Create and manipulate calendar data using classes from java.time.LocalDateTime, java.time.LocalDate, java.time.LocalTime, java.time.format.DateTimeFormatter, java.time.Period

• Declare and use an ArrayList of a given type

• Write a simple Lambda expression that consumes a Lambda Predicate expression