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Core JAVA Training
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About Course
Our Core Java SE is a computing-based platform and used for developing desktop or Window based applications. Thus, core Java is the part of Java SE where the developers develop desktop-based applications by using the basic concepts of Java where JDK (Java Development Kit) is a quite familiar Java SE implementation.
Core JAVA Training Course Syllabus
Installation JAVA Program Development JAVA Source File Structure Compilation & Executions Eclipse Tool Usage
Tokens, Identifiers, Keywords, Literals, Comments, Primitive Data types Operators Condition Statements Control Statements Arrays Command-line Arguments
OOPS, Fundamentals. Class & Object Function Models Array of Objects Static Members Encapsulation Constructors, Parameterized Constructors, Constructor Overloading Method Overloading Access Specifiers & Access Modifiers. Design of Accessor and Mutator Methods. Inheritance
Types of Inheritance
Method Overriding, Super keyword
Polymorphism Abstract Class
Interfaces
Objects Cloning Singleton class
String Handling
String StringBuffer StringBuilder
Organizing Classes and Interfaces in Packages Introduction to all pre-defined Packages Defining Package Making JAR Files for Library Packages Import and Static Import
Exceptions & Errors Types of Exception Control Flow In Exceptions Use of try, catch, finally, throw, and throws in Exception Handling In-built and User-Defined Exceptions Checked and Un-Checked Exceptions
Introduction Member Inner Class Static Inner Class Local Inner Class Anonymous Inner Class
Understanding Threads, Needs of Multi-threaded Programming Thread Life-Cycle Multiple Threads in a program Thread Priorities Synchronizing Threads
Streams and the new I/O Capabilities Understanding Streams The Classes for Input and Output The Standard Streams File FileReader FileWriter FileOutputStream FileInputStream BufferredInputStream BufferredOutputStream DataInputStream DataOutputStream SequenceInputStream ObjectInputStream ObjectOutputStream Working with File Object File I/O Basics Reading and Writing to Files Serialization & Deserialization
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Core JAVA Training FAQ'S
Java is a high-level, object-oriented, robust, secure programming language, platform-independent, high-performance, Multithreaded, and portable programming language. It was developed by James Gosling in June 1991. It can also be known as the platform as it provides its own JRE and API.
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JVM
JVM is an acronym for Java Virtual Machine; it is an abstract machine that provides the runtime environment in which Java bytecode can be executed. It is a specification that specifies the working of Java Virtual Machine. Its implementation has been provided by Oracle and other companies. Its implementation is known as JRE.
JVMs are available for many hardware and software platforms (so JVM is platform dependent). It is a runtime instance that is created when we run the Java class. There are three notions of the JVM: specification, implementation, and instance.
JRE
JRE stands for Java Runtime Environment. It is the implementation of JVM. The Java Runtime Environment is a set of software tools that are used for developing Java applications. It is used to provide the runtime environment. It is the implementation of JVM. It physically exists. It contains a set of libraries + other files that JVM uses at runtime.
JDK
JDK is an acronym for Java Development Kit. It is a software development environment that is used to develop Java applications and applets. It physically exists. It contains JRE + development tools. JDK is an implementation of any one of the below given Java Platforms released by Oracle Corporation:
- Standard Edition Java Platform
- Enterprise Edition Java Platform
- Micro Edition Java Platform
- Class(Method) Area: Class Area stores per-class structures such as the runtime constant pool, field, method data, and the code for methods.
- Heap: It is the runtime data area in which the memory is allocated to the objects
- Stack: Java Stack stores frames. It holds local variables and partial results, and plays a part in method invocation and return. Each thread has a private JVM stack, created at the same time as the thread. A new frame is created each time a method is invoked. A frame is destroyed when its method invocation completes.
- Program Counter Register: PC (program counter) register contains the address of the Java virtual machine instruction currently being executed.
- Native Method Stack: It contains all the native methods used in the application.
A platform is the hardware or software environment in which a piece of software is executed. There are two types of platforms, software-based and hardware-based. Java provides the software-based platform.
There are the following differences between the Java platform and other platforms.
- Java is a software-based platform whereas other platforms may be hardware platforms or software-based platforms.
- Java is executed on top of other hardware platforms whereas other platforms can only have the hardware components.
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