https://DevOpsCloud.io -- Cloud Monk Losang Jinpa

Return to OCP Oracle Certified Professional Java SE 17 Developer Study Guide - Exam 1Z0-829, OCP Oracle Certified Professional

OCP Objective Map

This book has been written to cover every objective on both the Developer and Foundation exams.

Java SE 17 Developer (1Z0-829)

The following table provides a breakdown of this book's exam coverage for the Java SE 17 Developer (1Z0-829) exam, showing you the chapter where each objective or subobjective is covered.

Exam Objective Chapter

• Handling date, time, text, numeric and boolean values
• Use primitives and wrapper classes including Math API, parentheses, type promotion, and casting to evaluate arithmetic and boolean expressions 1, 2, 4
• Manipulate text, including text blocks, using String and StringBuilder classes 4
• Manipulate date, time, duration, period, instant and time-zone objects using Date-Time API 4

• Controlling Program Flow
  • Create program flow control constructs including if/else, switch statements and expressions, loops, and break and continue statements 3

• Utilizing Java Object-Oriented Approach
  • Declare and instantiate Java objects including nested class objects, and explain the object life-cycle including creation, reassigning references, and garbage collection 1, 7
  • Create classes and records, and define and use instance and static fields and methods, constructors, and instance and static initializers 5, 6, 7
  • Implement overloading, including var-arg methods 5
• Understand variable scopes, use local variable type inference, apply encapsulation, and make objects immutable 1, 6, 7, 8
  • Implement polymorphism and differentiate object type versus reference type. Perform type casting, identify object types using instanceof operator and pattern matching 3, 6, 7
  • Create and use interfaces, identify functional interfaces, and utilize private, static, and default interface methods 7, 8
  • Create and use enumerations with fields, methods and constructors 7

• Handling Exceptions
  • Handle exceptions using try/catch/finally, try-with-resources, and multi-catch blocks, including custom exceptions 11

• Working with Arrays and Collections
  • Create Java arrays, List, Set, Map, and Deque collections, and add, remove, update, retrieve and sort their elements 4, 9

• Working with Streams and Lambda expressions
  • Use Java object and primitive Streams, including lambda expressions implementing functional interfaces, to supply, filter, map, consume, and sort data 10
• Perform decomposition, concatenation and reduction, and grouping and partitioning on sequential and parallel streams 10, 13

• Packaging and deploying Java code and use the Java Platform Module System
  • Define modules and their dependencies, expose module content including for reflection. Define services, producers, and consumers 12

• Compile Java code, produce modular and non-modular jars, runtime images, and implement migration using unnamed and automatic modules 12

• Managing concurrent code execution
  • Create worker threads using Runnable and Callable, manage the thread lifecycle, including automations provided by different Executor services and concurrent API 13
  • Develop thread-safe code, using different locking mechanisms and concurrent API 13
  • Process Java collections concurrently including the use of parallel streams 13

• Using Java I/O API
  • Read and write console and file data using I/O Streams 14
  • Serialize and de-serialize Java objects 14
  • Create, traverse, read, and write Path objects and their properties using NIO API 14

• Accessing databases using JDBC
  • Create connections, create and execute basic, prepared and callable statements, process query results and control transactions using JDBC API 15

• Implementing Localization
  • Implement localization using locales, resource bundles, parse and format messages, dates, times, and numbers including currency and percentage values 11

Java Foundations (1Z0-811)

The following table provides a breakdown of this book's exam coverage for the Java Foundations (1Z0-811) exam, showing you the chapter where each objective or subobjective is covered.

A few topics are on the Java Foundations exam but not the 1Z0-829. Those are covered here:

www.selikoff.net/java-foundations

Additionally, the objectives may be updated if Oracle updates the Java Foundations exam for a later version of Java. Check our website for those updates as well.

Exam Objective Chapter

What is Java?

Describe the features of Java 1

Describe the real-world applications of Java 1 + online

Java Basics

Describe the Java Development Kit (JDK) and the Java Runtime Environment (JRE) 1

Describe the components of object-oriented programming 1

Describe the components of a basic Java program 1

Compile and execute a Java program 1

Basic Java Elements

Identify the conventions to be followed in a Java program 1

Use Java reserved words 1

Use single-line and multi-line comments in Java programs 1

Import other Java packages to make them accessible in your code 1

Describe the java lang package 1

Working with Java Data Types

Declare and initialize variables including a variable using final 1

Cast a value from one data type to another including automatic and manual promotion 2

Declare and initialize a String variable 1

Working with Java Operators

Use basic arithmetic operators to manipulate data including +, -, *, /, and % 2

Use the increment and decrement operators 2

Use relational operators including ==, !=, >, >=, <, and ⇐ 2

Use arithmetic assignment operators 2

Use conditional operators including &&, ||, and ? 2

Describe the operator precedence and use of parentheses 2

Working with the String Class

Develop code that uses methods from the String class 4

Format Strings using escape sequences including %d, %n, and %s 11

Working with Random and Math Classes

Use the Random class Online

Use the Math class 4

Using Decision Statements

Use the decision making statement (if-then and if-then-else) 3

Use the switch statement 3

Compare how == differs between primitives and objects 4

Compare two String objects by using the compareTo and equals methods 4

Using Looping Statements

Describe looping statements 3

Use a for loop including an enhanced for loop 3

Use a while loop 3

Use a do- while loop 3

Compare and contrast the for, while, and do-while loops 3

Develop code that uses break and continue statements 3

Debugging and Exception Handling

Identify syntax and logic errors 1, 2, 3

Use exception handling 11

Handle common exceptions thrown 11

Use try and catch blocks 11

Arrays and ArrayLists

Use a one-dimensional array 4

Create and manipulate an ArrayList 9

Traverse the elements of an ArrayList by using iterators and loops including the enhanced for loop 9

Compare an array and an ArrayList 4, 9

Classes and Constructors

Create a new class including a main method 1

Use the private modifier 5

Describe the relationship between an object and its members 6

Describe the difference between a class variable, an instance variable, and a local variable 1, 6

Develop code that creates an object's default constructor and modifies the object's fields 6

Use constructors with and without parameters 6

Develop code that overloads constructors 6

Java Methods

Describe and create a method 5

Create and use accessor and mutator methods 5

Create overloaded methods 5

Describe a static method and demonstrate its use within a program 5

Fair Use Sources:

• OCP Oracle Certified Professional Java SE 17 Developer Study Guide on DuckDuckGo
• B09WJP11JL (OCP17SelBoy 2022)