Java Constants

Constant:

Constant is an identifier whose value can not be changed.In java language these constants are classified into following types

1. Numerical constants


2. Character constants

Numerical constants:

Numerical means numbers .these are classifed into 2 types

1. Integer constants
2. Real constants

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java-keywords

Keyword:
Keyword is an predefined word,which are used to perform implicit or explicit operation.
Here
Implicit means automatically
Explicit means manually
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Features of Java - Javatpoint

Features of Java:
As per as software industry is consent following are the important features about java language
Simple
Platform Independent
Architecture neutral
Portable
Multi thread
Dynamic
Distributed
Robust
High performance
Secure
Object oriented
Simple:
Java is very simple because of following reasons
Every java program can be written using simple English so that it is very easy to develop and understand, because of this reason java become very simple.
Java supports huge library, library is collection of predefined properties can be used to reduce the length of the program and burden of the developer can be reduced.
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Introduction to Programming in Java/Introduction to Java

Program: Program is a Collection of Statements or set of instructions used to perform a specific operation.
Software:
Collection of programs is known as “Software or Computer based application”, which can be used to operate computer or various devices. Computer based application or software’s can be developed to using a special language is called programming language.
Example: C, C++, java, .Net etc……
Classification of computer based application:
Computer based application are classified into two groups (types)
Desktop applications.
Network based applications.
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online tutorials

online tutorials

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5 Top Python Web Frameworks for 2017

5 Top Python Web Frameworks for 2017