Summary ### "JavaScript Essentials: A Student's Guide to Codi,,ng Mastery"
7 views 0 purchase
Course
Business economics banking computer science
Institution
### Master JavaScript: A Student's Guide
Discover JavaScript with our student-friendly guide! Get clear explanations, hands-on projects, interactive tutorials, and career tips. Perfect for beginners and those looking to enhance their skills. Start coding today and turn your knowledge into real-w...
Java is a high-level, class-based, object-oriented programming language designed to have as few
implementation dependencies as possible. It is a general-purpose programming language intended to let
application developers write once, run anywhere (WORA), meaning that compiled Java code can run on
all platforms that support Java without the need for recompilation.
### History of Java
Java was developed by James Gosling at Sun Microsystems (which has since been acquired by Oracle)
and released in 1995. The language was initially called Oak, after an oak tree that stood outside Gosling's
office, and later renamed Java, from Java coffee.
### Features of Java
1. **Object-Oriented**: Everything in Java is an object. Object-oriented means we organize our
software as a combination of different types of objects that incorporate both data and behavior.
2. **Platform Independent**: Java code can be run on multiple platforms without modification.
3. **Simple**: Java is designed to be easy to learn. If you understand the basic concept of OOP, Java will
be easy to master.
4. **Secure**: Java's security features are designed to allow the development of virus-free, tamper-free
systems.
5. **Architecture-neutral**: Java's compiler generates an architecture-neutral object file format, which
makes the compiled code executable on many processors, with the presence of Java runtime system.
6. **Portable**: Being architecture-neutral and having no implementation-dependent aspects makes
Java portable. Compiler written in ANSI C with a clean portability boundary is a POSIX subset.
7. **Robust**: Java has strong memory management, lack of pointers that eliminates security
problems, exception handling, and type checking mechanism.
, 8. **Multithreaded**: With Java's multithreaded feature, it is possible to write programs that can
perform many tasks simultaneously.
9. **High Performance**: With the use of Just-In-Time (JIT) compilers, Java enables high performance.
10. **Distributed**: Java has a distributed environment for creating applications on networks.
11. **Dynamic**: Java is considered to be more dynamic than C or C++ since it is designed to adapt to
an evolving environment.
### Basic Concepts in Java
#### 1. **Syntax and Semantics**
Java syntax is similar to C and C++, but it removes many of the complexities and pitfalls of those
languages. For instance, there are no explicit pointers, and memory management is handled by the
garbage collector.
#### 2. **Data Types and Variables**
Java supports various data types including:
- Primitive Data Types: `int`, `byte`, `short`, `long`, `float`, `double`, `boolean`, and `char`.
- Reference/Object Data Types: These are complex types defined by classes.
Variables in Java must be declared before they can be used.
#### 3. **Operators**
Java provides various operators to perform computations:
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller raheelazahid. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.49. You're not tied to anything after your purchase.
