Array Index Out of Bound in java

Question

package com.testing;

import java.io.BufferedReader;
import java.io.FileReader;

public class CsvParser {
    public static void main(String[] args) {
        String csvFile = "D:/code-home/SentimentAnalysis/test_data/Sentiment Analysis Dataset.csv";
        BufferedReader br = null;
        String line = "";
        String cvsSplitBy = "\t";

        br = new BufferedReader(new FileReader(csvFile));
        while ((line = br.readLine()) != null) {
                            // use comma as separator
            String []tweet = line.split(cvsSplitBy);
            System.out.println(tweet[1]);
            System.out.println(tweet[3]);
        }
    }

The program's purpose is to parse the CSV format. I have used bufferRead method.

When I go to compile the program, it works fine. When I run the program, I get an error,

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1
at com.testing.CsvParser.main(CsvParser.java:34)

Did you try to print the line you are attempting to split? Usually CSV files use a comma separator, not \t (CSV = Comma Separated Values). — Eran
– Eran, Commented Aug 4, 2015 at 10:27
The program is just telling you in your file, when you split it by tabulations ("\t"), there are not enough to access to the 2nd slot (tweet[1]). Check your file! — Keews
– Keews, Commented Aug 4, 2015 at 10:27

Eran · Accepted Answer · 2015-08-04 10:28:00Z

2

You should use a comma separator.

Change

String cvsSplitBy = "\t";

to

String cvsSplitBy = ",";

answered Aug 4, 2015 at 10:28

Eran

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