org.jlab.groot.io

Class TextFileReader

java.lang.Object

org.jlab.groot.io.TextFileReader

public class TextFileReader
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
TextFileReader()

Method Summary

Modifier and Type	Method and Description
double[]	getAsDouble(int[] index) Returns specified columns as array of double
double[]	getAsDouble(int min, int max)
int[]	getAsInt(int[] index) returns specified columns as array of ints
int[]	getAsInt(int min, int max) returns array of ints for given range of columns.
int	getDataSize()
static void	main(java.lang.String[] args)
boolean	openFile(java.lang.String name) Open a text file for reading.
boolean	readNext() reads the next line in the file and populates the internal list of tokens
void	show()
java.lang.String	toString() returns string representation of the array that was read.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

TextFileReader

public TextFileReader()

Method Detail

openFile

public boolean openFile(java.lang.String name)

Open a text file for reading.

Parameters:

name - name of the file

Returns:

readNext

public boolean readNext()

reads the next line in the file and populates the internal list of tokens

Returns:

true if read was successful, false otherwise.

getDataSize

public int getDataSize()

getAsDouble

public double[] getAsDouble(int min,
                            int max)

getAsDouble

public double[] getAsDouble(int[] index)

Returns specified columns as array of double

Parameters:

index - array containing columns indices

Returns:

getAsInt

public int[] getAsInt(int min,
                      int max)

returns array of ints for given range of columns.

Parameters:

min - min number of column

max - max number of column

Returns:

getAsInt

public int[] getAsInt(int[] index)

returns specified columns as array of ints

Parameters:

index - array containing columns indices

Returns:

toString

public java.lang.String toString()

returns string representation of the array that was read.

Overrides:

toString in class java.lang.Object

Returns:

show

public void show()

main

public static void main(java.lang.String[] args)