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Open Source GIS

luonut Shane Buscher

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luonut Laura Grave

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What is java A general-purpose object-oriented languaje Based on C/C++

Java can be installed on different platforms:

LINUX

WINDOWS

MAC

Java Disadvantages

An experiment in 1999 showed that Java was 3 or 4 times slower than C or C ++.

JAVA FEACTURE

SECURE

Memory allocation model is a major defense

RELIABLE

No ponters but real arrays. Memory corruptions or unauthorized memory accesses are impossible

JAVA FEACTURE 2

PORTABLE

The libraries define portable interfaces.

INTERPRETED

Java byte codes are translated on the fly to machine readable instructions in runtime(java Virtual Machine).

JAVA FEACTURE 1

OBJET ORIENTED

Almost all data types are objects(files,strings,etc.)

SIMPLE

Fixes some clumsy features of C++. no pointers.

Java Tools

INTELLI IDEAJ

It is an IDE developed in Java by Jet Brains under two types of licenses, one open source and the other commercial

ECLIPSE

It allows the development of projects in other types of languages such as C, C ++ or PHP.

NETBEANS

It is an Integrated Development Environment for creating Java applications for desktop, mobile or web