I succeeded in making my application that inputs a file, prints 5 spaces
at
the beginning of a paragraph and prints to a file with the new changes.
Now
I have another problem. The last paragraph of the input file has two
blank
lines above it. When my application runs and creates the output file, the
last paragraph of the output file has two lines above it, but the
paragraph
is not indented. The blank line just above the paragraph has 5 space
characters in it. The rest of the output file is fine. The paragraphs in
the
output file that have no indent issues have one blank line above them
which
is what I want. I made an if statement inside a while statement to detect
the blank lines and print an extra blank line to the output file as well
as
store the new paragraph indented 5 spaces in a string varriable. The if
statement is as follows.
if inputString.length() < 1
{
outFile.println("\n");
inputString = inFile.nextLine();
}
What do I do to correct my last paragraph so it is indented properly, but
I
still have two blank lines above it?
Gilbert Neiva
----- Original Message -----
From: "Alex Hall" <mehgcap@xxxxxxxxx>
To: <programmingblind@xxxxxxxxxxxxx>
Sent: Monday, June 28, 2010 1:36 PM
Subject: Re: Java Delemma
You want to use getNext(), not hasNext(). HasNext is a test to see if
any lines remain; you might say something like
while(file.hasNextLine()){
txt+=file.getNextLine();
}
Please note that it has been some time since I did Java, so the method
may not be called getNext, but it is something similar which you can
find in the docs.
The error is because hasNext returns true or false (a boolean) where
getNext returns an actual string, which is what you want.
On 6/28/10, Gilbert Neiva <gneiva@xxxxxxx> wrote:
I'm trying to write an application which takes an input file, and adds
5
blank spaces at the beginning of each paragraph. Then the application
is
to
write to an output file with the new changes. The application will
detect
the beginning of a new paragraph because there is a blank line before
it.
I
test for the blank using the following if statement.
if inputString.length() < 1
{
inputString = blanks+inFile.hasNextLine();
}
When I tried to compile the application using the javac program, I get
the
following error.
History.java:23: incompatible types
found : boolean
required: java.lang.String
inputString = inFile.hasNextLine();
^
1 error
The source code for the application is below.
import java.io.*; // importing input.output classes
import java.util.Scanner;
public class History
{
public static Scanner inFile;
public static PrintWriter outFile;
public static void main(String[] args)
{
String inputString; // Input string from a line in file
final String blanks = " ";
// Five blanks inserted at beginning of each paragraph
inFile = new Scanner(new FileReader("history.d1"));
// Instantiating new scanner and new filereader object with
// history.d1 as argument
outFile = new PrintWriter(new FileWriter("history.d2"));
// Instantiating new printWriter object
// It will be used to write to a file
inputString = blanks+inFile.hasNextLine();
outFile.println(inputString);
while (inFile.hasNextLine())
{
inputString = inFile.hasNextLine();
if (inputString.length() < 1)
{
inputString = blanks+inFile.hasNextLine();
}
outFile.println(inputString);
}
inFile.close();
outFile.close();
}
}
What am I doing wrong?
Gilbert Neiva
--
Have a great day,
Alex (msg sent from GMail website)
mehgcap@xxxxxxxxx; http://www.facebook.com/mehgcap
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