CSVExample.java

/*
 * Artificial Intelligence for Humans
 * Volume 1: Fundamental Algorithms
 * Java Version
 * http://www.aifh.org
 * http://www.jeffheaton.com
 *
 * Code repository:
 * https://github.com/jeffheaton/aifh

 * Copyright 2013 by Jeff Heaton
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * For more information on Heaton Research copyrights, licenses
 * and trademarks visit:
 * http://www.heatonresearch.com/copyright
 */

package com.heatonresearch.aifh.examples.intro;

import au.com.bytecode.opencsv.CSVReader;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Arrays;

/**
 * Shows how to read a CSV file.
 */
public class CSVExample {

    /**
     * Run the example.
     */
    public void run() {
        CSVReader reader = null;

        try {
            final InputStream istream = this.getClass().getResourceAsStream("/iris.csv");
            if( istream==null ) {
                System.out.println("Cannot access data set, make sure the resources are available.");
                System.exit(1);
            }
            reader = new CSVReader(new InputStreamReader(istream));

            String[] nextLine;
            while ((nextLine = reader.readNext()) != null) {
                System.out.println(Arrays.toString(nextLine));
            }
        } catch (IOException ex) {
            ex.printStackTrace();
        } finally {
            if (reader != null) {
                try {
                    reader.close();
                } catch (IOException ex) {
                    ex.printStackTrace();
                }
            }
        }
    }

    /**
     * The main method.
     *
     * @param args Arg 0 is the file to read.
     */
    public static void main(final String[] args) {
        final CSVExample prg = new CSVExample();
        prg.run();
    }
}