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Message:
Why won't it recieve input?
Posted by Zach Keatts on December 11, 2000 at 4:43 PM
I have written the following code. For some reason when the
program comes to the line String inputLine=in.readLine(); it doesn't even stop to allow the user to input a value. When
this happens it leaves the value inputLine null, and then the
program ends up throwing a NullPointerException. Am I missing
something?!?!?
(here's the code) import java.util.*;
import java.io.*; public class Parse
{ final static int MAX_LINES=500; public static void main(String[] args)throws IOException
{
boolean done = false;
do
{
System.out.print("Please enter the file you wish to edit: ");
ConsoleReader input = new ConsoleReader(System.in);
String edit = input.readLine(); //input is received here try
{
FileReader reader = new FileReader(edit);
done = true;
} catch(FileNotFoundException e)
{
System.out.println("Sorry that file is not in the main directory.\n\n");
done = false;
}
finally
{
if(done)
{
final String DELIMITER="TEXT_END";
String[] document=new String[MAX_LINES];
FileReader reader = new FileReader(edit);
BufferedReader in = new BufferedReader(reader);
int i=0;
String inputLine=in.readLine(); //this is my problem
while(i {
document[i]=inputLine;
i++;
inputLine=in.readLine();
}
in.close();
reader.close();
Document stuff = new Document(document);
boolean quit=false; while(!quit)
{
System.out.print(":");
String command=input.readLine();
parse(command);
if(command.equals("q"))
quit=true;
}
}
}
}
while(!done);
}
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