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Type: Posts; User: lordofrandom

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  1. Re: How can I add empty string ("") to the end of textfile

    Oh wow thats a good idea, I'll try that out thanks.
  2. Re: How can I add empty string ("") to the end of textfile

    This is a bit difficult to explain but I am writing a program that allows the user to write to a text file using randomaccessfile. The user enters name, age, and address, and each of these items is...
  3. How can I add empty string ("") to the end of textfile

    I am writing to a RandomAccessFile. When I try to do raf.writeBytes("") the textfile ignores this empty string and just removes it from the file. Is there a way so that the textfile will save this...
  4. How do you compare Doubles numerically?

    if you are converting strings to Doubles by using Double.parseDouble(string), how can you compare them numerically ( >, <, ==) with other Doubles? Is there a way to convert Doubles to primitive...
  5. Very frustrating problem with writing to a file, cannot find file when overwriting.

    Hi, I wrote a database program that works perfectly fine on my home computer with Java 1.7. However, when I run the same exact code on my school computer there is a problem with overwriting a text...
  6. Re: File reading from a specific point on a line

    Oh...yeah I completely forgot about String.split. Thanks a lot!
  7. File reading from a specific point on a line

    Hi, I am having some trouble with reading a line at a specific point. For example I have several lines of data similar to this:

    Talsma,Tegan,743448,F,4F1,4K2,S4,950805,9051726485

    I want the...
  8. Replies
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    576

    [SOLVED] Re: decimal format not working

    This works

    DecimalFormat df=new DecimalFormat("#.00");
  9. Replies
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    576

    [SOLVED] Re: decimal format not working

    I found part of the problem, it doesn't add 2 decimal places if there is only 1 decimal place. 8.5 doesn't turn into 8.50. I just need a way to add a 0 if it has only 1 decimal place
  10. Replies
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    576

    [SOLVED] Re: decimal format not working

    This is the output:


    Employee Payroll (Sorted by last name)
    F.Name L.Name Hourly Wage Hours Worked Gross Pay 20% Tax Net Pay
    Paul Allen $21.50 ...
  11. Replies
    8
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    576

    [SOLVED] Re: decimal format not working

    Employee Payroll (Sorted by last name)
    F.Name L.Name Hourly Wage Hours Worked Gross Pay 20% Tax Net Pay
    Paul Allen $21.50 34 731.0 ...
  12. Replies
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    576

    [SOLVED] decimal format not working

    import java.util.Formatter;
    import java.util.*;
    import java.text.DecimalFormat;

    public class program5c
    {
    static DecimalFormat df=new DecimalFormat("#.##"); ...
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    2
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    541

    Re: Sorting 2D Array problem

    Thanks a lot, sir.
  14. Replies
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    541

    Sorting 2D Array problem

    Hi, I am using a bubble sort algorithm to sort a 2D array. The array is as follows:



    String data[][] = {{"John", "Smith", "14.75", "30", "ZZZZ", "ZZZZ", "ZZZZ",},{"Bill", "Gates", "18.50",...
  15. Re: Vowel frequency in a string, it compiles but getting error

    Thanks a lot.
  16. Vowel frequency in a string, it compiles but getting error

    import java.util.Scanner;
    public class program4f_4
    {
    public static void main(String args[])
    {
    Scanner sc = new Scanner(System.in);
    System.out.println("Enter a string to...
  17. Re: maximum of two numbers method problem

    Oh wow I'm an idiot

    I have to print 'value' not maximum, thanks.
  18. maximum of two numbers method problem

    I just got introduced to methods and functions, and I have to use them to find the max of two integers entered by the user. Below is my code and the error I get is "cannot find symbol - variable...
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