asked on

help need quick answer

i am writing a java program to receive text from a csv file and split it up into tokens (got a string tokenizer working ok). i am now working on a series of IF statements to receive the tokenized csv information and split it up into several array. i only need the 9th column called marks.

2003/4,SEM1,CSD1005C,C99,CSD1005C,#010,10001,,#87,59,,,10001

i need to get hold of the 59 to the right of the line. here is my code so far.

import java.io.*; //import necessary libraries for things like tokenizer
import java.util.*;

public class reader
{

public static void main(String args[])
{

//declare global variables

String arr1[] = new String[]{};
String arr2[] = new String[]{};
String arr3[] = new String[]{};
String arr4[] = new String[]{};
String arr5[] = new String[]{};
String arr6[] = new String[]{};
String arr7[] = new String[]{};
String arr8[] = new String[]{};
String arr9[] = new String[]{};
String arr10[] = new String[]{};

String line;
String year;

try //file import code
{
File inFile = new File("marks.csv"); //create object linked to actual file
FileReader reader = new FileReader(inFile); //create input stream
BufferedReader buff = new BufferedReader(reader);

line = buff.readLine(); //read first line
//while (line != null) //null returned when no more to read
//{

System.out.println(line);
line = buff.readLine(); //get next
year = line;

//}

//tokenizing code

StringTokenizer st = new StringTokenizer(year,",");

String arr[] = new String[st.countTokens()];

// below is code to tokenize the string called st at the , mark and output to screen

for (int i = 0; st.hasMoreTokens(); i++)
{
arr[i]= st.nextToken();

//System.out.println (arr[i]);

EasyIn.pause();
if (i == 0)
{

arr1[i] = st.nextToken();

System.out.println("------------this shud be correct------------");
System.out.println(arr1[i]);
}
if (i == 1)
{

arr2[i] = st.nextToken();

System.out.println("------------this shud be correct------------");
System.out.println(arr2[i]);
}
if (i == 2)
{

arr3[i] = st.nextToken();

System.out.println("------------this shud be correct------------");
System.out.println(arr3[i]);
}
if (i == 3)
{

arr4[i] = st.nextToken();

System.out.println("------------this shud be correct------------");
System.out.println(arr4[i]);
}
if (i == 4)
{

arr5[i] = st.nextToken();

System.out.println("------------this shud be correct------------");
System.out.println(arr5[i]);
}
if (i == 5)
{

arr6[i] = st.nextToken();

System.out.println("------------this shud be correct------------");
System.out.println(arr6[i]);
}
if (i == 6)
{

arr7[i] = st.nextToken();

System.out.println("------------this shud be correct------------");
System.out.println(arr7[i]);
}
if (i == 7)
{

arr8[i] = st.nextToken();

System.out.println("------------this shud be correct------------");
System.out.println(arr8[i]);
}
if (i == 8)
{

arr9[i] = st.nextToken();

System.out.println("------------this shud be correct------------");
System.out.println(arr9[i]);
}
if (i == 9)
{

arr10[i] = st.nextToken();

System.out.println("------------this shud be correct------------");
System.out.println(arr10[i]);
}
}
}

catch(IOException e)
{
System.out.println("error has occured: "+e);
}
}
}

as you can see it is a bit of a work in progress!! if i take out the if statements then it works fine. although it does compile with the if's in, when i try and run it i get a window up which instantly disappears

please reply soon... i really need help

Sean