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► KB ► To/From Guides ► Corel Paradox

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File Extensions (Corel Paradox and Java Cross Reference Guide)

By Mike Prestwood

Corel Paradox versus Java: A side by side comparison between Corel Paradox and Java.

Tool Basics

Developer environment basics such as common file extensions, common keyboard shortcuts, etc.

File Extensions

[Other Languages]

Languages Focus

Common or primary file extensions used (not a complete list, just the basics).

Corel Paradox:

Paradox for Windows has two primary file types: source files and delivered files:

Source Files
Source files in Paradox are binary but can can be opened in later versions of Paradox and even in earlier versions if you don't use any new features.

.FSL = Form
.RSL = Report
.SSL = Script
.LSL = Library

Since Paradox source files do not compile to an EXE, Paradox developers tend to use a startup form or script to start the application.

ObjectPAL File Extensions 1 certification question.

Java: .java

The customary primary source file extension for Java code is ".java" which could contain anywhere from a single class to the entire source code.

Other important files:

.JAR - Java archive file (compressed code file). Archive that contains multiple Java files and is compressed using .ZIP compression; stores Java classes and metadata and may be digitally signed; runs as a program if the Java Runtime Environment (JRE) is installed on the computer.
.CLASS - compiled source code which are platform-independent. If a source file has more than one class, each class is compiled into a separate .class file. These .class files can be loaded by any Java Virtual Machine (JVM).

Java File Extensions (.java)