Read entire CSV 

opencsv is a free and open source library for reading and writing CSV files in Java. We need to have opencsv-2.3.jar or later versions in classpath. The following example shows reading an entire CSV file using opencsv.

• test1.csv
  aaaa,bbbb,cccc,dddd
  one,two,three,four

File Name  :   com/bethecoder/tutorials/open_csv/tests/ReadCSVAll.java  Author  :   Sudhakar KV Email  :   [email protected]

package com.bethecoder.tutorials.open_csv.tests; import java.io.IOException; import java.io.InputStreamReader; import java.util.Iterator; import java.util.List; import au.com.bytecode.opencsv.CSVReader; public class ReadCSVAll {   /**    * @param args    * @throws IOException     */   public static void main(String[] args) throws IOException {     /**      * Load CSV from classpath      */     CSVReader csvReader = new CSVReader(new InputStreamReader(         ReadCSV.class.getClassLoader().getResourceAsStream("test1.csv")));          /**      * Reads the complete file into list of tokens.      */     List<String[]> rowsAsTokens = csvReader.readAll();       Iterator<String[]> rowsAsTokensIt = rowsAsTokens.iterator();            while (rowsAsTokensIt.hasNext()) {         for (String token : rowsAsTokensIt.next()) {           System.out.print(token + " ");         }         System.out.println();       }   } }

aaaa bbbb cccc dddd 
one two three four