Core Java

Core Java

Core Java

Core Java is considered to be the foundation of the Java Programming Technology Concept. And without this, professional can’t start working on any other advanced Java technologies. Core Java refers to stand-alone Java applications as opposed to advanced Java which runs on servers. Core Java is said to possess Single Tier Architecture with its interfaces being the basic foundation of the Java Platform and Standard Edition. This is used in all classes of Java Programming – from Java EE to Desktop applications. It includes lang, io, awt and also unit and net packages. Core Java concepts cover everything from OOPS to Exception Handling, Array List, Linked List, Stack, Data types, Special Operators and Wrapper Classes.

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Course Summary

Java is nothing but the aggregation of computer software and customizations that have been developed by a company called Sun MicroSystems, which ended up being acquired by Oracle.

Java offers a unique system for software application development and its deployment in cross-platform computing environments. It is known to be widely used in a host of computing platforms ranging from mobile phones and embedded devices to enterprise servers. Solutions to real-world problems can be sought out using the Java Programming Language.

Core Java is considered to be the foundation of the Java Programming Technology Concept. And without this, professional can’t start working on any other advanced Java technologies. Core Java refers to stand-alone Java applications as opposed to advanced Java which runs on servers. Core Java is said to possess Single Tier Architecture with its interfaces being the basic foundation of the Java Platform and Standard Edition. This is used in all classes of Java Programming – from Java EE to Desktop applications. It includes lang, io, awt and also unit and net packages. Core Java concepts cover everything from OOPS to Exception Handling, Array List, Linked List, Stack, Data types, Special Operators and Wrapper Classes.

Java is of immense significance in the IT industry as of now, with it being a powerful platform that includes a holistic group of APIs for distributed applications which allow programs to run anywhere on the network. It’s “Write once run anywhere” methodology has revolutionized the IT domain while minimizing Desktop administration costs globally and saving potentially billions of dollars. Such features make Java ideal for realizing e-commerce and web applications and programming in the hyper-network and heterogeneous world. Moreover, Java has open source libraries that can be used everywhere. Many big organizations like Apache, and Google, has bestowed a lot of great libraries that makes Java development accessible, simple easy, faster and profitable.

Course Highlights

The Course for Core Java can be split into various sections as given below:

  • Language Fundamentals – This will explain about Java programming basics including flow control techniques, and also methods of implementation of access control and declarations.
  • Object Oriented Programming – This deals with the various methods for inheritance in Java, along with encapsulation and polymorphism
  • Exception Handling-Involves detailing the fundamentals of exceptions along with various types of errors.
  • Input Output – This will describe the fundamentals of file input/output process. This also explains what a BufferedReader is.
  • Java.lang – The process of utilizing the StringBuffer and Strings is dealt.
  • Collections – This section delves into an illustration of concepts for collections interface, along with the use of vectors.
  • Threads – This expounds the fundamental principles and concepts of threads and multithreading.
  • AWT and Swings – The concepts of Swings and AWT package are dealt along with uses and functions of frames.
  • JDBC – This deals with the processes and methodologies needed to connect a database


There are no stringent pre-existing requirements for learning Java, meaning even a professional new to the concept of programming can take it up.

But the bare minimum for learning core java is being able to use a computer and being able to start a command line shell. Prior knowledge in C or C++ will go a long way in making core Java easy to learn. This is because the need for an introduction and foundation to Object-Oriented Design will be met. A passion for programming will go a long way in accelerating the learning of core Java.

Why learn Core JAVA?

By the end of Core Java training course, the participant will be able to:

  • Gain a comprehensive understanding of Java programming fundamentals along with the use of Java to write applications
  • Gain a detailed understanding of Object-oriented Programming concepts.
  • Assess and evaluate the Java development environment as a whole
  • Recognize and apply fundamentals of Java syntax
  • Explain compiling and running a simple Java application
  • Describe construction of simple variables and arrays
  • Elucidate simple expressions and control flow
  • Gain mastery over the fundamentals of Core Java

Who can learn Core JAVA?

As Core Java has infinite scope for learning and advancement, and especially so in the IT domain, the candidates who can benefit most from a certification in Core Java are:

  • School Students in the 12th Class who has Java as an integral part of syllabus
  • Undergraduates, Graduates and even Post-Graduates desirous of making it big in the IT sector
  • Professionals already working in the IT sector who require a refresher course in Java
  • Candidates who are programming job aspirants are also highly suitable for this course.

Advantages of Core Java

Even though the benefits of using Core Java are endless, here are the most prominent benefits:

  • Since Core Java is Object-Oriented, it will enable users to create modular programs and generate reusable code.
  • The cross-platform Capability is the next major benefit of using core Java which enables one to switch from one computer system to another without any hassles.
  • As Java has been designed with the goal of making distributed computing easy, networking capability is a great plus for Core Java
  • Security was one of the key objectives in mind when developing Java language and its associated components, hence Core Java is found to be highly secure
  • Java’s stack allocation system aids in easy data storage and retrieval or restoration.
  • Lastly, the multithreaded nature of Java enables a program to execute various tasks all at the same time within the program.

Companies that use Core Java

  • Even though the lists for organizations that use Java are endless, here are a few global enterprises that use Core Java:
  • Accenture- The world-renowned enterprise dealing with software products and services has used Core Java to create advanced enterprise-scale, Java-based applications to minimize efforts required in application development reducing anywhere between 10 to 25 percent of the development effort.
  • Google- The search engine that changed the world in terms of knowledge on the go has used Java for purposes of application logic, powering its massive global operations.
  • Thomson Reuters – This mass media and information giant have used Java to enhance software development internally. Core Java plays a key role in its programming efforts within the company
  • Groupon- The online e-commerce company has leveraged the massive capabilities of core Java to spearhead its online operations worldwide.
  • Phillips- This company that specializes in healthcare, lighting, and electronics also used Java for software development.

Why Bumaco Global?

The professionals looking to learn Core Java at our institute will find we are the best choice for a certification in Core Java because:

  • We possess certified professionals with the highest levels of proficiency in the Java and Oracle platform who are on par with global standards for the same.
  • Our training is aimed at transforming existing candidates interested in the subject matter into industry-ready professionals with real-time experience in the domain
  • Training is facilitated by instructors and trainers who focus on the real-time application of Core Java programming concepts, through live programming projects.
  • We use an optimum blend of online training augmented by instructor-led classes which have the desired impact in terms of gaining expertise and applying concepts learned.

What Do We Provide?

  • Experienced faculties who are certified in the area of Core JAVA
  • Quality study materials like assignments, assessments, case studies and video presentations
  • Access to tools to perform analysis and reporting
  • Become a certified with the concepts, techniques and its tools

Chapter 2 : OOPS
Chapter 3 : String Handling
Chapter 4 : Packages
Chapter 5 : Exception Handling
Chapter 6 : Multi Threading
Chapter 7 : Var Args

Certification Help

The details for core Java certification are as follows:

  1. Oracle Certified Associate, Java SE 7 Programmer (IZ0-803) –Associate Certification
  2. Oracle Certified Associate, Java SE 8 Programmer (IZ0-808) – Associate Certification
  3. Oracle Certified Professional, Java SE Programmer (IZ0-804) – the Professional Certification Path

Oracle Certified Associate, Java SE 7 Programmer (IZ0-803) –Associate Certification

This Certification is considered to be the fundamental level exam for Java SE 7 and is the prerequisite for the Oracle Certified Professional, Java SE and Programmer (IZ0-804). The candidate will have to clear Java SE 7 Programmer I Exam to qualify as a OCAJ 7 certified professional. Upon completion of this, the candidate will be fluent in Java data types, inheritance and exceptions, methods and encapsulation, loop constructs, arrays and strings.

Exam Details

Exam Name: Oracle Certified Associate, Java SE 7 Programmer (IZ0-808) – Associate Certification

Exam Number- IZ0-808

Exam Duration – 140 mins

90 Multiple Choice Questions

Exam Pass Score- 77%

Exam Fee - $245

Preparing for the exam

Even though there are similarities with the old Sun Certified Java Programmer, it is not a replacement for the same and candidates who have cleared or are prepared for SCJP can just as easily take up and clear this certification exam

OCAJP Certification exams are really easy when contrasted with OCPJP 7. Study guides and practice tests help to prepare the candidate to clear the exam. Also, the OCAJP 7 Certification training lab helps as a holistic tool for Java Certification. It acts as a self-study guide software simulator.

Books used for preparation include:

OCA Java SE 7 Programmer I Study Guide (Exam 1Z0-803) (Oracle Press) by Edward Finegan and Robert Liguori

Oracle Certified Professional Java SE 7 Programmer Exams 1Z0-804 and 1Z0-805: A Comprehensive OCPJP 7 Certification.

Oracle Certified Associate, Java SE 8 Programmer (IZ0-808) – Associate Certification

This is the next version in line with Core Java and has an identical scope with upgraded features.

Exam Name: Oracle Certified Associate, Java SE 8 Programmer (IZ0-808) – Associate Certification

Exam Duration – 120 mins

77 Multiple Choice Questions

Exam Pass Score- 65%

Exam Fee - $245

Exam Prerequisite is Oracle Certified Associate, Java SE 7 Programmer

Oracle Certified Professional, Java SE Programmer (IZ0-804) – the Professional Certification Path

Exam Name: Oracle Certified Associate, Java SE Programmer (IZ0-804) – Professional Certification

Exam Duration – 150 mins

65 Multiple Choice Questions

Exam Pass Score- 65%

Exam Fee - $245

Exam Prerequisite is Oracle Certified Associate, Java SE 7 Programmer

Preparation for the exam

To prepare for the certification exam, candidates can refer to examination preparation seminar offered by Oracle, which offer a comprehensive review of exam objectives. They also cover the depth of the topics covered and touch upon the skills required to clear the exam.

Given below are the details of the seminars with their respective links

  • Certification Exam Prep Seminar: Java SE 7 Programmer II
  • Exam Prep Seminar Package: OCA Java SE 7 Programmer II

Practice exams offered by Oracle also help in getting ready for the certification exams. The Oracle authorized practice exam 1Z0-804: Java SE 7 Programmer II is one such resource along with sample questions available on the Oracle Website.

Define constructors and list its types.

A Constructor referred to in Java is a special type of method that is utilized to initialize the object. A Java constructor is typically invoked at the time of object creation. It builds the values meaning that it generates data for the object which is exactly why it is known as a constructor.

There are two fundamental rules for the creation of Java constructors. The first states that the constructor name must be same as the class name. The second states the constructor should not have an explicit return type.

There are two types of Java Constructors:

Differentiate heap and stack memory.

Irrespective of where the object is created in the code, (for instance as a local variable or class variable), they are always created within heap space in Java. But the differences between them both are given below:

Heap Memory Stack Memory
Stack memory is utilized for storing local variables and function call Heap memory is utilized in storing objects
Stack is utilized for static memory allocation Heap is utilized for dynamic memory allocation
Variables which are allocated on the stack are stored directly in the memory and access such memory is relatively fast. Variables which are allocated on the heap have their memory allocated at runtime and accessing such memory is relatively slower
When a function or a method calls another function which in turns calls another function and so on, the execution of all such functions remains on hold until the very last function will return its value Elements of the heap do not have any dependencies with each other and can always be accessed in a random manner whenever required.
One can implement the stack if it is known exactly how much data needs to be allocated before compile time provided it is not too large.

One can implement heap if it is not known exactly how much data is needed at run-time or if it is required to allocate a lot of data.

Explain Lambda expressions in JAVA

Java Lambda expressions are new and essential features of Java which were included in Java SE 8. It offers a concise and clear-cut manner to represent a single method interface utilizing an expression. This proves to be highly useful in the collection library. It helps in the iteration, filtering, and extraction of data from the collection library. Pre-lambda expressions, something known as the anonymous inner class used to be the only choice for such implementation. Since Java lambda expression is handled as a function, the compiler will not create a .class file. A Lambda expression offers implementation of what is known as a Functional interface, which has only a single abstract method.

Use of Lambda Expression facilitates implementation of the Functional interface and minimizes the amount of actual coding.

Define synchronization and discuss why we need synchronization in JAVA?

Synchronization in Java can be defined as the capability to control the access of multiple threads to any shared resource

This is highly useful when it is required to allow a single thread to access the shared resource. It is used to avoid and minimize thread interference and to even prevent consistency problems

There are two types of synchronization:

  1. Process Synchronization
  2. Thread Synchronization

With reference to thread synchronization, when two or more threads are started within a program, there may be a possibility of multiple threads accessing the same resource. This may, in turn, generate unpredictable results because of concurrency issues.

Therefore, there is a need to harmonize the action of multiple threads making sure that only a single thread would be able to access the resource at any given point in time. The implementation of the same is carried out using a concept named as monitors wherein every object in Java is associated with a monitor and a thread can lock or unlock. And only one thread will be able to hold a lock on a monitor at one time. Threads can be created and their tasks synchronized easily using what is known as synchronized blocks.

Discuss Multitasking and its types.

The process involving the simultaneous execution of multiple tasks is known as multitasking. This is used to utilize the CPU in the most efficient way possible.

Multitasking can be achieved in two ways using:

Why Java is considered as an important programming language?

First Designed and released by Sun Microsystems Corporation in 1995, Java remains to be the most ubiquitous programming language without which a majority of applications and websites online today will not work. And this trend is replenished by the daily influx of newly created apps and web interfaces. Anything from game consoles to data centers and mobile phones uses Java (Since Android OS runs on a Java Language Environment).

Java is much easier than C++ which makes it the top pick for Fortune 500 companies to develop website backend systems and desktop apps.

Java is Beginner Friendly and is relatively simple to use. It is also statically-typed, meaning errors have to be checked before compiling, thus making the Java codebase easier to maintain. Being statically typed, it is faster than its dynamically typed components. Just in Time compilers boost Java performance enabling optimization in real time. Finally the massive online community of Java Developers and programmers from a helpful network of programmers for any issues that may crop up.

What is the future of Java?

It is an established fact that Java has been the biggest development in the IT domain which swept across the globe post the creation of C++. It currently serves as the backbone of countless products and services which have taken the world by storm.

The future of Java has in its sights, integration with lean and agile practices and thinking to power the Java community towards ground-breaking innovations, delivering quality systems addressing business needs. Since the Java ecosystem is self-sustaining, right from mobility to middleware, it will impact everything on a grand scale with trends picking up in the future.

Facebook has announced its plans to work on its Reactive Native, JavaScript framework, and ruling out a return to HTML 5. Also, Java is rooted deeply in online open-source community, which is always an indicator of sustained future growth. Finally, since Java is on almost every device imaginable on the planet, the future of Java looks very promising with infinite scope for growth and expansion.

What are the different editions of Java?

Given below are the various editions of Java:

  1. Java Standard Edition is the conventional version architected for general computing. This is an Object-Oriented language which is statically typed and bytecode-compiled and runs on a completely automatic garbage collection.
  2. Java Enterprise Edition- this may not qualify as a different language, still, there are Interface specifications architected to generate software that runs inside an Application Server implementation. The primary difference here is that it is architected for deployment to Application Server that is compatible with Enterprise Edition Interfaces
  3. Java Micro Edition is Java designed to run on Mobile devices. It should be noted that this is not the same as Android. Java ME is architected to deal with mobile hardware better than Java SE.
  4. Java Card is a highly portable version of Java for lower end devices such as Smart ATM cards which in fact have Java on them
  5. JavaFX is a framework architected to construct feature rich Internet Client GUI Applications.

List the types of applications that run on Java.

Java currently runs on well beyond 3 billion devices and the types of application that run on Java are as given below:

  1. Desktop GUI Applications
    Methods such as Abstract Windowing Toolkit (AWT), Java FX and Swing in Java allow GUI development for Desktop applications
  2. Mobile Applications
    The cross-platform capability of Java, Micro Edition, also known as Java ME or J2ME  is known to run on innumerable Java supported devices which include smartphones and feature phones. Also, Android apps are scripted in Java.
  3. Embedded Systems
    Embedded Java technologies are seen in various devices such as televisions, utility meters, blue-ray disk players and SIM cards.
  4. Web Applications
    Through the use of Struts, JSPs or Servlets, Java offers support for web applications worldwide.
  5. Web Servers and Application Servers
    In addition to web applications, it also provides support for web servers and application servers.
  6. Enterprise Applications:
    Enterprise software including web-services and network applications are catered to by Java using Java Enterprise Edition offering API and runtime environments.
  7. Scientific Applications
    Most Software developers use Java for creating applications including scientific and mathematical calculations, for example- MATLAB

Discuss the salary trend for Java professionals.

Enterprise back-end and Android Mobile application development have seen their respective markets being led by Java for a long time now. Oracle has stated a nine million strong Java developer workforce across the globe who have stuck with Java for reason of reliability and compatibility

According to the leading global job portal, the median Salary for a Java developer in the US is $102,043 per year as on April 28th, 2017. This is almost 50% higher than the average salary of an IT professional in the same geography.

The online research company has gone on to say that currently, the average salary earned by a software engineer in the UK is around $63,500 which is a significant percentage higher than the median salary drawn by an IT professional in the UK

Database Administrators in Java are able to hit similar salary targets through a certification and sometimes even without.

What are the Prerequisites of Core Java?

What are the system requirements to attend the live sessions?

  1. Processor I3 with 4GB RAM, OS can be 32 or 64 bit (Laptop/Desktop)
  2. Internet connection with Min 1 MBPS speed
  3. Good quality headset
  4. Power back up
  5. You can also log in through your Android mobile phone/ Tablet with 4G internet connectivity

What if the trainee miss any session?"

The trainee can watch the recorded video of all the sessions in the LMS or Trainee can attend the missed session in the upcoming batches.

What do the trainee get from the LMS?"

The trainee will have the access to Recorded sessions, Assignments, Quizzes, Case Studies, few course documents posted by trainers, Placement related docs etc.

What is the validity of the LMS access? What if the LMS access is expired"

The trainee will get 1-year access to the LMS. You can contact our support team to extend the validity of the LMS.[/accordion]

Will the trainee get any project to work on with Core Java?

Yes, of course! The trainee will get the project at the end of the course; you need to submit a project. Our trainers will assist you to complete the project

How are the practicals done?

The trainee will get step by step assistance from our expert trainers during the practical sessions, post live sessions, you can practice at your end and submit your queries if any to our support team for further assistance.

What are the types of training we offer?

  1. WBLT- Web-based live Training
  2. WBVT- Web-based Video Training
  3. One on One live training
  4. Self-paced training
  5. In class training

What are the benefits of online training ?

  1. Flexible location
  2. Flexible schedule
  3. Travel free
  4. Time saving
  5. Cost saving
  6. LMS access
  7. You will never miss a class
  8. Two-way interactive
  9. Fast learning
  10. Trainer support for 1 year

Who are our Trainers?

Our trainers are industry experts having 10 to 15 years of industry experience and 3-4 years of training experience. Most of the trainers are working professionals who teach the real time scenarios which will help the students to learn the courses in an effective manner.

Will the trainee get the certification post the course completion?

Yes, Trainee will get the participation certificate from CorpConsult upon successfully completing the course.

What if the trainee has more queries and need assistance?

The trainee can drop an email to an automatic ticket will get generated. Our support team works 24/7 to assist you with all your queries.

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Enrolled: 344 students
Duration: 30+ Hours
Lectures: 7
Video: 30+ Hours
Level: Advanced

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