Java buzzwords

Java buzzwords

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  Java Buzzwords Sriram StudyPoint
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  List of Buzzwords 1.Simple 2. Secure 3. Portable 4. Object-Oriented 5. Robust 6. Multithreaded 7. Architectural neutral 8. Interpreted 9. High Performance 10. Distribute 11. Dynamic
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  Simple • Java easyto learn • It is easy to write programs using Java • Expressiveness is more in Java. • Most of the complex or confusing features in C++ are removed in Java like pointers etc
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  Secure • Interpreted • JavaVirtual Machine (JVM) • “Sandbox” • No pointers • Applets are run within the JVM
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  Portable • Programs canbe executed on any kind of computer containing JVM. • When compiled, it generates an intermediate code file called as “bytecode”. • Bytecode helps Java to achieve portability. • This bytecode can be taken to any computer and executed directly.
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  Object-Oriented • Java followsobject oriented model. Encapsulation Inheritance Polymorphism Abstraction
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  Robust • Strongly typedlanguage • No pointers • Automatic garbage collection • Exception handling
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  Architecture – Neutral •Bytecode helps Java to achieve portability. • Bytecode can be executed on computers having any kind of operating system or any kind of CPU. • Since Java applications can run on any kind of CPU, Java is architecture – neutral.
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  Multithreaded • Interactive, networkedprograms • Built-in support for process synchronization • A thread is a light weight process
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  Interpreted The compiled codeof Java is not machine instructions but rather its a intermediate code called ByteCode. This code can be executed on any machine that implements the Java virtual Machine. JVM interprets the ByteCode into Machine instructions during runtime.
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  High Performance When javaprograms are executed, JVM does not interpret entire code into machine instructions. JVM was intelligently developed to interpret only the piece of the code that is required to execute and un touch the rest of the code. The performance of java is never questioned compared with another programming language.
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  Distributed • Designed forthe internet • Built-in support for TCP/IP • Remote Method Invocation (RMI) • Resources are Shared.
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  Dynamic • JVM maintainsa lot of runtime information about the program and the objects in the program. • Libraries are dynamically linked during runtime. • So, even if you make dynamic changes to pieces of code, the program is not effected.
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