Java SE 21 Developer | Oracle Certified Professional 1Z0-830

Oak Academy

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• Introduction to Java SE 21 Developer Certification Course 02:50

  • 1: What will we learn 02:50

• Introduction to Java and Environment Setup 1:38:06

  • 2: Section Overview 01:00
  • 3: Java SE 21 Developer Certified Professional 02:19
  • 4: Basic Programming Terms 03:25
  • 5: Getting Started with Java 06:58
  • 6: Download an install Java 21 on Windows 09:52
  • 7: Download and install Java on MacOS 07:17
  • 8: What is IDE 03:16
  • 9: Download and Install IntelliJ on Windows 23:16
  • 10: Download and Install IntelliJ IDEA on Mac 20:47
  • 11: First Java Program 09:39
  • 12: Compiling and Running Applications in Java 03:23
  • 13: Closer Look at the First Java Program 06:54

• Basics of Java 1:26:57

  • 14: Section Overview - Basics of Java 00:59
  • 15: Basic Output in Java 13:40
  • 16: Basic Input in Java 09:37
  • 17: Java Comments 11:29
  • 18: Variables 10:43
  • 19: Data Types 14:09
  • 20: Numbers in Java 16:56
  • 21: Type Conversion and Type Casting 09:24

• Operators 1:25:03

  • 22: Section Overview - Operators 01:02
  • 23: Arithmetic Operators 06:45
  • 24: Assignment Opertors 06:34
  • 25: Unary Operators 06:38
  • 26: Equality and Relational Operators 05:23
  • 27: Conditional Operators 06:09
  • 28: Bitwise and Bitshift Operators 23:15
  • 29: Char Data Type 14:11
  • 30: Operator Precedence 12:05
  • 31: Expressions, Statements, and Blocks 03:01

• Array 1:06:24

  • 32: Introduction to Array 19:48
  • 33: Sorting Array 11:59
  • 34: Searching Array 13:14
  • 35: Multi Dimensional Arrays 21:23

• Control Flow Statements 3:14:50

  • 36: If and If-Else Statement 22:29
  • 37: Ternary Operator 08:04
  • 38: If - else if Ladder and Nested if Statement 12:22
  • 39: Switch-Case Statement 13:26
  • 40: Simple Calculator App with switch case 09:32
  • 41: For Loop 15:34
  • 42: Enhanced For Loop (For-each Loop) 09:34
  • 43: While Loop 13:00
  • 44: Infinite Loop 17:49
  • 45: Do-While Loop 16:22
  • 46: Break Keyword 11:58
  • 47: Continue Keyword 14:45
  • 48: Return Keyword 07:45
  • 49: Labeled Loops 10:46
  • 50: Fibonacci Series 11:24

• Methods 1:00:17

  • 51: Section Overview - Methods 00:46
  • 52: What is Method 16:46
  • 53: Method Calling 02:01
  • 54: Types of Methods 10:47
  • 55: Variable Arguments (VarArgs) 17:40
  • 56: Method Overloading 06:26
  • 57: Find Exponential Number 05:51

• Java Object-Oriented Concept 2:24:12

  • 58: Section Overview - OOP Concepts 01:13
  • 59: OOP Concept, Object and Class 05:34
  • 60: Stack and Heap in Java 07:48
  • 61: Access Modifiers 13:49
  • 62: Naming Conventions 09:38
  • 63: Constructor 21:23
  • 64: Packages and Import - Part 1 10:30
  • 65: Packages and Import - Part 2 18:33
  • 66: Static Keyword 13:16
  • 67: Static Import 13:10
  • 68: Nested Classes 16:31
  • 69: Local Inner Classes 12:47

• Java Object-Oriented Programming 3:32:28

  • 70: Section Overview - OOP 01:11
  • 71: Inheritance 23:08
  • 72: Sealed Class 09:43
  • 73: Method Overriding 11:29
  • 74: Super and this keywords - Part 1 14:18
  • 75: Super and this keywords - Part 2 10:25
  • 76: Super and this keywords - Part 3 10:31
  • 77: Final Keyword 14:04
  • 78: Abstract Keyword 17:39
  • 79: Interface 18:22
  • 80: Polymorphism 15:05
  • 81: Encapsulation 14:15
  • 82: Anonymous Class 11:01
  • 83: Record Class 29:08
  • 84: var Keyword 12:09

• Wrapper Classes, Auto-Boxing and Unboxing 13:17

  • 85: Introduction to Wrapper Classes 02:37
  • 86: Conversion of Types 01:52
  • 87: Autoboxing - Unboxing 08:48

• Strings 1:41:10

  • 88: Section Overview - String Class 01:11
  • 89: Introduction to String Class 14:33
  • 90: Equality of Strings 29:42
  • 91: Immutability of Strings 09:24
  • 92: Useful Methods of String - Part 1 13:39
  • 93: Useful Methods of String Class - Part 2 17:33
  • 94: StringBuffer Class 05:47
  • 95: StringBuilder Class 03:31
  • 96: String vs StringBuffer vs StringBuilder 01:42
  • 97: Reverse String 04:08

• Collections 2:54:43

  • 98: Section Overview - Collections 01:08
  • 99: Introduction to Collections 10:44
  • 100: Introduction to List Interface 13:17
  • 101: ArrayList Class 17:47
  • 102: Conversion Between List and Array 17:35
  • 103: Sorting ArrayList 13:24
  • 104: Comparator Interface 12:25
  • 105: Iterator and ListIterator 15:40
  • 106: Set Interface - Part 1 13:36
  • 107: Set Interface - Part 2 12:59
  • 108: Queue Interface 12:58
  • 109: Deque Interface 08:17
  • 110: Map Interface - Part 1 12:27
  • 111: Map Interface - Part 2 12:26

• Exception Handling in Java 1:00:27

  • 112: Introduction to Exception 02:01
  • 113: Error vs. Exception 03:15
  • 114: Exception Types 02:43
  • 115: Try Catch Block 01:59
  • 116: Finally Block 14:24
  • 117: throw Keyword 05:02
  • 118: throws Keyword 06:08
  • 119: throw vs. throws 01:01
  • 120: Useful Methods of Throwable Class 07:19
  • 121: Bank Account Balance 16:35

• Enum Types 18:04

  • 122: Enum Type 10:34
  • 123: Traffic Lights Program with Enum Type 07:30

• Lambda Expression 1:30:09

  • 124: Section Overview - Lambda Expression 00:41
  • 125: Marker and Functional Interfaces 03:20
  • 126: Lambda Expression 10:03
  • 127: Predicate Interface 15:39
  • 128: Method Reference 24:01
  • 129: Switch Expression (Enhanced Switch Statement) 25:39
  • 130: Calculator App with Lambda 10:46

• Stream API 1:41:31

  • 131: Introduction to Stream API 20:29
  • 132: Reduction Operations - Part 1 24:35
  • 133: Reduction Operations - Part 2 28:30
  • 134: Parallelism and Parallel Stream 27:57

• Date&Time 1:29:10

  • 135: Overview - Date-Time 00:45
  • 136: Calendar Class 21:02
  • 137: LocalDate Class 17:02
  • 138: LocalTime Class 11:58
  • 139: LocalDateTime Class 11:59
  • 140: Period Class 09:38
  • 141: DateTimeFormatter Class 16:46

• Java IO (Java Input / Output) 2:05:21

  • 142: Section Overview-Java IO 01:07
  • 143: Introduction to Java IO 04:35
  • 144: OutputStream Class 19:09
  • 145: InputStream - Part 1 08:06
  • 146: InputStream Class - Part 2 16:34
  • 147: Writer Class 13:52
  • 148: Reader Class 21:33
  • 149: Sample Project - Creating copy of a file 11:55
  • 150: Serialization and Deserialization 17:47
  • 151: transient Keyword 10:43

Hello there,

Welcome to the "Java SE 21 Developer | Oracle Certified Professional 1Z0-830" course.

Oracle 1Z0-830 | Java SE 21 Developer Certification Exam Prep Course with Lambda Expression & Java Collections Framework

The Oracle Certified Professional: Java SE 21 Developer (Exam 1Z0-830) is a globally recognized certification that validates your expertise in Java programming, object-oriented principles, and modern Java development practices. This certification is highly valued by employers and serves as proof of your proficiency in Java, one of the most in-demand programming languages in the world.

In this course, we aimed to make you a good Java developer and pass the exam required for Oracle Certified Professional: Java SE 21 Developer Certification(Exam number 1Z0-830).

You may have taken many Java courses so far, but the exams you will take to get Java certificates to require you to know many tips and exam tactics, apart from Java knowledge. Therefore, being a perfect Java developer is not enough to get a passing grade on the exam.

So why should you become a Java SE 21 Developer? Because if you want to apply for a Java developer job, having a certificate will put you one step ahead of other candidates. Remember that a certified developer is always preferable to a non-certified developer.

In this course, you'll learn Java from scratch, along with essential exam tactics, tips, and practice questions. You'll also work on 8 real-world projects and complete 50+ coding exercises to reinforce your learning.

By the end of the course, you'll be fully prepared to tackle the Oracle Certified Java SE 21 Developer Exam and advance your career with confidence!

In this course you will learn;

• What is Oracle Certified Professional: Java SE 21 Developer Professional Exam 1Z0-830,

• What Java is and how it works,

• Programming Fundamentals with Java,

• IntelliJ IDEA

• Java Development Kit - JDK,

• Java Runtime Environment – JRE,

• Java Virtual Machine - JVM

• All Concepts of Object-Oriented Programming

• Variables and Data Types,

• Arrays,

• Control Flow Statements,

• Methods,

• Collections,

• Strings,

• Wrapper Classes,

• Exceptions,

• Enum Types and more,

• Lambda Expression,

• Stream API,

• Date and Time,

• Java Input/Output,

• Concurrency

No Previous Knowledge is needed!

This course will take you from a beginner to a more experienced level.

This Java course starts with absolute beginner core concepts, such as showing you the free tools you need to download and install, and takes you all the way to mastering the skills required for the Oracle Certified Professional: Java SE 21 Developer certification. You will gradually learn core Java skills through hands-on examples, building your knowledge step by step. If you're already in the field and need a refresher, this course will also serve as a valuable guide. Every time you return to this course, you will learn something new or improve your existing skills, getting you one step closer to passing the Java SE 21 certification exam.

What is Java?

Java is a programming language and platform initially developed by Sun Microsystems and now owned by Oracle. Java is inspired by C and C++ and uses an object-oriented programming model, which means that concepts or things are represented as “objects” that have data fields and methods. One of the biggest advantages of Java is that it runs on a Java Virtual Machine (JVM), meaning that you can execute Java code on any platform that has a JVM, without re-compilation. This is different from C and C++, which require re-compilation for every hardware platform you execute the code on. Java has many other advantages, including automatic memory management. This eliminates hard-to-understand pointers used in languages like C, which can help Java developers write better code in a shorter period of time.

What does it mean that Java is an object-oriented programming language?

Java is an object-oriented programming (OOP) language, which means concepts or things are represented as “objects” that have data fields and methods. In object-oriented programming, models called “objects” represent either a programming entity or an abstract concept. These objects are created and assembled independently of one another but can work with each other in logical ways. Objects are manifestations of classes and can inherit code allowing for code re-use, which can drastically reduce code duplication if used correctly. Additionally, encapsulation, another core OOP concept, allows you to create code with the implementation hidden. Although, in many cases, writing OOP code in Java (and other OOP languages) can take longer than using a procedural language, the benefits obtained with OOP, namely code reusability, encapsulation of data, and readability of code, often result in code that is easier to maintain in the long run.

What is Java used for?

Java is a very versatile language. Several fields use Java, including Android app development, desktop applications that work on many operating systems, server-side applications, and more. The virtual machine required to run Java programs has been ported to numerous operating systems allowing Java to run on virtually all hardware. According to the TIOBE index, Java has consistently been in the top 3 most-used and popular languages since its initial release in the 1990s. Many developers still consider Java the language of choice in areas such as enterprise and application servers, and even in embedded systems development. Many Fortune 500 companies rely on Java to run their core systems and employers often view Java experience on a résumé as favorable due to its popularity.

What certification is best for Java?

Oracle, the owner of the Java programming language, has the Oracle Certified Developer: Java SE 21 Developer program, which is easily the best certification to obtain for Java developers. The main reason why it’s the best certification, is, unlike most other certifications for Java, the Oracle certification is both well known and universally accepted by employers all over the world. The exam is challenging. You also must bring an ID with you to the exam, so you cannot get anyone to take it for you. Certification is really valuable for both the certification holder and for future employers. There are few, if any, other certification programs so universally accepted as Oracle’s Java certification. Thus, getting Java certification is one of the surest ways to give yourself an advantage over other job seekers in the marketplace.

Why would you want to take this course?

Our answer is simple: The quality of teaching

OAK Academy based in London is an online education company OAK Academy gives education in the field of IT, Software, Design, development in Reed platform where it has over 2000 hours of video education lessons.

When you enroll, you will feel the OAK Academy`s seasoned developers' expertise

Video and Audio Production Quality

All our content is created/produced as high-quality video/audio to provide you the best learning experience

You will be,

• Seeing clearly

• Hearing clearly

• Moving through the course without distractions

Dive in now into the "Java SE 21 Developer | Oracle Certified Professional 1Z0-830" course.

Oracle 1Z0-830 | Java SE 21 Developer Certification Exam Prep Course with Lambda Expression & Java Collections Framework

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