astronomy/demo/java

Astronomy Engine examples in Java

The class file Main.java shows examples of how to use the Kotlin version of Astronomy Engine from a Java program.

The demo program is split into separate source files, one for each topic, as listed below. Each topic is chosen by a command line parameter. To build the demo program, run this command in Linux or Mac:

./gradlew jar

On Windows, use this command to build the demo program:

gradlew.bat jar

Then run the program with no command line parameters to see usage text:

java -jar build/libs/astronomy-demo-1.0.0.jar

As an example, to run the MoonPhase demo, try this:

java -jar builds/lib/astronomy-demo-1.0.0.jar moonphase

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MoonPhase.java

This example shows how to determine the Moon's current phase, and how to predict when the next 10 quarter phases will occur.