Class CSVReader

Object

CSVReader

public class CSVReader
extends Object

This is a simple CSV reader, that does not take into account quoted commas (a proper one does).

Field Summary

Fields

Modifier and Type	Field and Description
private static String	DELIMINATOR Simply set to a comma "," for now.
private Scanner	fileScanner Uses a instance variable as the scanner remains open until the file is completely read.

Constructor Summary

Constructors

Constructor and Description
CSVReader(String file, boolean skipHead) A constructor that requires the name of the file to open.

Method Summary

Modifier and Type	Method and Description
String[]	getNext() Reads a line (nextLine()) and splits it into a String array by the DELIMINATOR, if the line is empty it will return null
boolean	hasNext() Checks to see if the fileScanner has more lines and returns the answer.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DELIMINATOR

private static final String DELIMINATOR

Simply set to a comma "," for now.

See Also:

Constant Field Values

fileScanner

private Scanner fileScanner

Uses a instance variable as the scanner remains open until the file is completely read.

Constructor Detail

CSVReader

public CSVReader(String file,
                 boolean skipHead)

A constructor that requires the name of the file to open. It then opens the file for reading. For the most part, take a look at the try catch from the class slides. Which is mostly repeated here.

  try {
    fileScanner = // your code here
    //  your code here
  }catch (FileNotFoundException io) {
    System.err.printf("File %s not found%n", file);
    System.exit(1);
  }
 

If skipHead is true, call the .nextLine() method immediately, but do nothing with the results.

Parameters:

file - filename

skipHead - skip the head of the file, true or false

Method Detail

getNext

public String[] getNext()

Reads a line (nextLine()) and splits it into a String array by the DELIMINATOR, if the line is empty it will return null

Returns:

a String array if a line exits or null if not

See Also:

String.split(String)

hasNext

public boolean hasNext()

Checks to see if the fileScanner has more lines and returns the answer.

Returns:

true if the file scanner has more lines (fileScanner.hasNext())