how to write to java file in the best way?
Let’s learn how to write to java file in the best way. The most accurate or helpful solution is served by Stack Overflow.
There are ten answers to this question.
Best solution
I have a program that performs lots of calculations and reports them to a file frequently, I know that frequent write operations can slow a program down a lot, so to avoid it I'd like to have a second thread dedicated to the writing operations. Right now I'm doing it with this class I wrote (the impatient can skip to the end of the question): public class ParallelWriter implements Runnable { private File file; private BlockingQueue<Item> q; private int indentation; public ParallelWriter...
Answer:
Your basic approach looks fine. I would structure the code as follows: import java.io.BufferedWriter...
trutheality at Stack Overflow Mark as irrelevant Undo
Other solutions
I'm quite embarrassed to ask for help on this as I've already banged my head against the wall trying to figure this one out for 8 hours over this weekend and I think this should be easily solvable! My question is: How do I parse an IE saved bookmark...
Answer:
Hi coolguy90210, In a Netscape-format bookmark file exported from Internet Explorer, each folder is...
coolguy90210-ga at Google Answers Mark as irrelevant Undo
I want to write the contents of the ResultSet to a CSV file. I have used the following code to for the same: query="select * from client where client name= "+custName; st=con.prepareStatement(query); rs=st.executeQuery(query); System.out.println...
Asghar at Yahoo! Answers Mark as irrelevant Undo
BACKGROUND I have an Excel file that contains several rows (~360) of data. Each row has several columns worth of data, such as serial number, name, and location. IDEAL ANSWER Create a webpage with java script that has a "search box." If...
Answer:
Hi Ken3141, Happy to hear my suggestion is acceptable to you! Here are the results. Anything you want...
ken3141-ga at Google Answers Mark as irrelevant Undo
How do I make my Java program write which line of the input file is invalid onto the error file? For example if the first line doesn't satisfy requirements which are balance has to be at least 50 and account numbers have to be different. Here is my BankAccount...
Answer:
If you want custom exceptions, you have to write them. If you want Objects with behaviors, you may have...
Q&A at Yahoo! Answers Mark as irrelevant Undo
I have a .txt file that has 3 lines of data, each of which has 3 data in them (separated by space). My text file is as follows: 2468 5 PlayStation 1357 3 XBoX 1597 4 GameBoy (code amount name) <--- this isn't in a file, just explains what these numbers...
Answer:
My answer is this. Don't ask people to do your homework or programs. Try browsing the multitude of online...
Boris Jakovljević at Yahoo! Answers Mark as irrelevant Undo
I'm creating a huge program that handles a bunch of recursive tasks. I'm using the File object a lot in the program and it's included in my recursive methods. I was wondering if there's a way to change a file path without having to create a new File...
Answer:
all creating a new file object is, is making an abstract pathname. It's the same amount of work done...
Fadi at Yahoo! Answers Mark as irrelevant Undo
Write a constructor that takes a File as a parameter. The constructor should open the file and read the entire file line-by-line. As it reads the file it should collect the following ...show more
4YRLUT7OMRBBIYEXB6KQRDY6EQ at Yahoo! Answers Mark as irrelevant Undo
I have a file I must delete. I looked at many tutorials but they didn't cover it. I have a file from which my program reads input and after reading I want to delete it. How do I do that? Is there a specific way you can do that in Java by naming the path...
Ivan at Yahoo! Answers Mark as irrelevant Undo
I need to code a Java-Servlet that accept data from a HTML form and write them into a CSV (Comma Separated Value) text file for later import into a database. And also I need to import these text file values in to a spreadsheet package and making sure...
Gimhani at Yahoo! Answers Mark as irrelevant Undo
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