looking for sample - simple smartdashboard plugin which writes to networktable

[fovea1959]

again, does it need to specifically be a smartdashboard, or just a Java program (it sounds like the latter)? In that case, the shorter route may be a standalone program to stuff the network tables.

package org.usfirst.frc3620.desktop.networktables;

import edu.wpi.first.wpilibj.networktables2.client.NetworkTableClient;
import edu.wpi.first.wpilibj.networktables2.stream.IOStreamFactory;
import edu.wpi.first.wpilibj.networktables2.stream.SocketStreams;
import java.io.IOException;

public class TableStuffer {

    public static void main(String args[]) {
        Throwable boom = null;
        try {
            String host = "10.36.20.2";
            if (args.length > 0) {
                host = args[0];
            }
            int port = 1735;
            TableStuffer tableStuffer = new TableStuffer(host, port);
            tableStuffer.go();
        } catch (IOException ex) {
            boom = ex;
        } catch (RuntimeException ex) {
            boom = ex;
        }
        if (boom != null) {
            boom.printStackTrace();
        }
    }

    NetworkTableClient client = null;

    TableStuffer(String h, int p) throws IOException {
        IOStreamFactory streamFactory = SocketStreams.newStreamFactory(h, p);
        client = new NetworkTableClient(streamFactory);
    }

    void go() {
        double degrees = 0;

        while (true) {
            if (!client.isConnected()) {
                client.reconnect();
                // fresh connection, restart the since wave
                degrees = 0;
            } else {
                double s = Math.sin(degrees * Math.PI / 180.0);
                System.out.println (degrees + " -> " + s);
                client.putDouble("degrees", degrees);
                client.putDouble("sin", s);
                degrees ++;
            }
            try {
                Thread.sleep(50);
            } catch (InterruptedException ex) {
            }
        }
    }

}