1. Simple
2. Object oriented
3. Platform independent
4. Secured
5. Robust
6. High Performance
7. Multithreaded
Simple :
* Java language syntax is based on C++
* removed many confusing and rarely-used features like explicit pointers, operator overloading etc.
* No need to remove unreferenced objects in java because there is Automatic Garbage Collection in java.
Object oriented:
*Object oriented programming(OOPs)is a methodology that provides some set of rules to development and maintenance the software.
concepts of OOPs:
Object
Class
Inheritance
Polymorphism
Abstraction
Encapsulation
Platform independent:
* A platform is the hardware or software environment in which a program runs.
* java is software-based platform that runs on the top of other hardware-based platforms
* Java code can be run on multiple platforms e.g. Windows, Linux, Sun Solaris, Mac/OS etc.
* Java code is compiled by the compiler and converted into bytecode.
* This bytecode is a platform independent code because it can be run on multiple platforms
* JVM read the bytecode and execute the instruction but the JVM is platform dependent.
Secured:
* No explicit pointer to leak a memory
* Java Programs run inside virtual machine sandbox
* Classloader used to separate the package for the classes of the local file system from those that are imported from network sources.
* Bytecode Verifier checks the code fragments for illegal code that can violate access right to objects.
* Security Manager determines what resources a class can access such as reading and writing to the local disk.
Robust
* Robust simply means strong.
* No pointer in java
* There is automatic garbage collection in java.
* There is exception handling and type checking mechanism in java
High-performance
* Java is faster than traditional interpretation since bytecode is "close" to native code still somewhat slower than a compiled language (e.g., C++)
Multi-threaded
* A thread is a single process of execution.
* Multi thread is a process of executing multiple threads at a time.
* The main advantage of multi-threading is that it doesn't occupy memory for each thread.
* It shares a common memory area.
Please let me know your feedback .
2. Object oriented
3. Platform independent
4. Secured
5. Robust
6. High Performance
7. Multithreaded
Simple :
* Java language syntax is based on C++
* removed many confusing and rarely-used features like explicit pointers, operator overloading etc.
* No need to remove unreferenced objects in java because there is Automatic Garbage Collection in java.
Object oriented:
*Object oriented programming(OOPs)is a methodology that provides some set of rules to development and maintenance the software.
concepts of OOPs:
Object
Class
Inheritance
Polymorphism
Abstraction
Encapsulation
Platform independent:
* A platform is the hardware or software environment in which a program runs.
* java is software-based platform that runs on the top of other hardware-based platforms
* Java code can be run on multiple platforms e.g. Windows, Linux, Sun Solaris, Mac/OS etc.
* Java code is compiled by the compiler and converted into bytecode.
* This bytecode is a platform independent code because it can be run on multiple platforms
* JVM read the bytecode and execute the instruction but the JVM is platform dependent.
Secured:
* No explicit pointer to leak a memory
* Java Programs run inside virtual machine sandbox
* Classloader used to separate the package for the classes of the local file system from those that are imported from network sources.
* Bytecode Verifier checks the code fragments for illegal code that can violate access right to objects.
* Security Manager determines what resources a class can access such as reading and writing to the local disk.
Robust
* Robust simply means strong.
* No pointer in java
* There is automatic garbage collection in java.
* There is exception handling and type checking mechanism in java
High-performance
* Java is faster than traditional interpretation since bytecode is "close" to native code still somewhat slower than a compiled language (e.g., C++)
Multi-threaded
* A thread is a single process of execution.
* Multi thread is a process of executing multiple threads at a time.
* The main advantage of multi-threading is that it doesn't occupy memory for each thread.
* It shares a common memory area.
Please let me know your feedback .
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