Reading multiple "columns" from text file

[Wrathchild]

Hi, I've read many postings & docs on doing this, but am still confused...help would be mucho appreciated

Sample data in text file:
app1name, c:\my data\app1name.mde
app2name, c:\my data\app2name.mde
app3name, c:\my data\app3name.mde

Now I would like to read this data into an array, hashmap, or whatever so I can use it in my application without hardcoding it. Below is what I currently have:

    public void initPathData() {
        apps.add(new ApplicationsHolder("app1name", "c:\my data\app1name.mde"));
        apps.add(new ApplicationsHolder("app2name", "c:\my data\app2name.mde"));
        apps.add(new ApplicationsHolder("app3name", "c:\my data\app3name.mde));
}

thanks!

 

[venur]

Hi,

Read the text file line by line, as the line delimiter is "," use the StringTokenize or String.slpit() and store them in HashMap. After reading the file send the HashMap to initPathData();

Some thing like this

 BufferedReader inputStream = new BufferedReader(new FileReader("textFile.txt"));
String inLine = null;
HashMap map = new HashMap();
   while ((inLine = inputStream.readLine()) != null) {
        String[] s = inLine.split(",");
	map.put(s[0],s[1]);
    }
 inputStream.close();
 // pass the map to you method

Cheers
Venu

 

[Wrathchild]

thanks, I'm getting the following errors:

ApplicationList.java [111:1] unreported exception java.io.FileNotFoundException; must be caught or declared to be thrown
BufferedReader inputStream = new BufferedReader(new FileReader("textFile.txt"));

ApplicationList.java [114:1] unreported exception java.io.IOException; must be caught or declared to be thrown
while ((inLine = inputStream.readLine()) != null) {

ApplicationList.java [118:1] unreported exception java.io.IOException; must be caught or declared to be thrown
inputStream.close();

3 errors

 

[venur]

Hi,

Catch the IOException while reding the file. And the exception is that its not able to read the file "textFile.txt"

HashMap map = new HashMap();
       try {
           BufferedReader inputStream = new BufferedReader(new FileReader("textFile.txt"));
           String inLine = null;
           while ((inLine = inputStream.readLine()) != null) {
               String[] s = inLine.split(",");
               map.put(s[0], s[1]);
           }
           inputStream.close();
       } catch (IOException e) {
           System.out.println(e.toString());

       }

Cheers
Venu

 

[Wrathchild]

that did it, many thanks!