How is the java.lang.StringBuffer class different from the java.lang.String

How is the java.lang.StringBuffer class different from the java.lang.String class?....

Read the API.
http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html
"Strings are constant; their values cannot be changed after they are created. String buffers support mutable strings."
Although when possible you should use StringBuilder instead of StringBuffer.
Always read the API at the very least before asking questions in the forums. Ideally you should do some google searching and poke around for an answer too. Otherwise you will get people barking at you.
Drake

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Hey there Sparkly3gs,
It sounds like your camera is not rotating as expected in the camera app. I want to recommend starting by quitting the running apps on the phone.
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http://support.apple.com/kb/ht5137
Double-click the Home button.
Swipe left or right until you have located the app you wish to close.
Swipe the app up to close it.
When you have done that restart the phone:
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http://support.apple.com/kb/ht1430
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iOS: How to back up and restore your content
http://support.apple.com/kb/HT1766
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Thank you for using Apple Support Communities.
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The time in iCal is different from the time in iPhone Calendar

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Why is the Keyer in FCP X different from the Keyer in Motion 5?

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How can i AppendText to richTextBox only if the text is new(different) from the text that is already in the richTextBox ?

Code
public void ScrollNews()
listsext.Ext(page);
combindedString = string.Join(Environment.NewLine, ListsExtractions.myList);
richTextBox1.SelectAll();
richTextBox1.SelectionAlignment = HorizontalAlignment.Right;
richTextBox1.AppendText(combindedString);
scrollerText = string.Join(Environment.NewLine, ListsExtractions.myListWithoutLinks);
scroller1.TextToScroll = scrollerText;
if (NewsLevels.newsLevel && NewsLevels.shouldStart)
UpdateTextControls();
scroller1.Start();
NewsLevels.shouldStart = false;
if (NewsLevels.newsLevel == false && NewsLevels.shouldStart)
UpdateTextControls();
scroller1.Start();
NewsLevels.shouldStart = false;
string[] rlines = richTextBox1.Lines;
richTextBox1.SelectionStart = 0;
richTextBox1.SelectionLength = rlines[0].Length;
richTextBox1.SelectionColor = Color.Red;
richTextBox1.Select(rlines[0].Length, rlines[1].Length + 1);
richTextBox1.SelectionColor = Color.Green;
RedColorAlert1();
if (lines == null)
label5.Text = "0";
else
label5.Text = lines.Length.ToString();
The line is:
richTextBox1.AppendText(combindedString);
I'm calling this method ScrollNews every X minutes with a timer.
The way it is now it will AppendText all the time. But i want it to Add the combinededString only if the text in combindedString was different from the text that is already in the richTextBox. Somhow to keep all the time the last text and compare it and
if there is a new text then appen it.

public void Scroll()
listsext.Ext(page);
combindedString = string.Join(Environment.NewLine, ListsExtractions.myList);
richTextBox1.SelectAll();
StringBuilder sb = new StringBuilder();
sb.Append(combindedString);
richTextBox1.SelectionAlignment = HorizontalAlignment.Right;
richTextBox1.AppendText(combindedString);
The problem is that now it will keep adding to the richTextBox the content in combindedString over and over again. I need somehow to check each time if the content in combindedString already exist in the richTextBox if not meaning it's new content then AppendText
it.
If it's the same already exist do nothing don't add it.
EDIT
I write to a text file the content of the ombindedString variable .The first content the lines is the combindedString:
המשטרה עצרה אמא ל2 ילדים קטנים שבעלה נעצר בחשד למעורבות בעלה בכריתת עצים
15:03 דווח במקור בתאריך : 09.03.15 : שעה
http://rotter.net/forum/scoops1/189935.shtml
אדם החשוד בעבירת מין בקטינים נעצר לאחר שהתלונן על 2 שסוחטים אותו על רקע מעשיו
14:50 דווח במקור בתאריך : 09.03.15 : שעה
http://rotter.net/forum/scoops1/189932.shtml
אינדונזיה: 5 הרוגים בקריסת האנגר בנמל תעופה
14:44 דווח במקור בתאריך : 09.03.15 : שעה
http://rotter.net/forum/scoops1/189930.shtml
אום אל-פחם: מספר חשודים עוכבו בחשד למעורבות במימון טרור
14:04 דווח במקור בתאריך : 09.03.15 : שעה
http://rotter.net/forum/scoops1/189914.shtml
אלמנתו של רפ''ק ג'דעאן אסעד, שנרצח בפיגוע הדריסה, ילדה בן
13:05 דווח במקור בתאריך : 09.03.15 : שעה
http://rotter.net/forum/scoops1/189884.shtml
תנאי ליברמן לכניסה לממשלה עונש מוות למחבלים חובת חתימה על מסמך נאמנות
12:39 דווח במקור בתאריך : 09.03.15 : שעה
http://rotter.net/forum/scoops1/189868.shtml
תלמיד תיכון מרחובות חשוד שהפעיל מעבדה ביתית לזיוף תעודות זהות ואישורי מחלה
12:03 דווח במקור בתאריך : 09.03.15 : שעה
http://rotter.net/forum/scoops1/189856.shtml
הצביעות של רענן שקד: האשים את אמהות 3 החטופים ומגנה את חגי הוברמן
11:43 דווח במקור בתאריך : 09.03.15 : שעה
http://rotter.net/forum/scoops1/189848.shtml
And this is a screenshot i couldnt copy the text of the richTextBox1.Text
richTextBox1.Text content image
co uld be that the format of the text in the combindedString and the richTextBox1.Text looks different so it think it's not exist ?
Update:
Not sure if it's important but the combindedString i'm adding the text to it from the variable ListExtractions.myList
myList is List and i build this List like that:
private void ListToStringList(List<string> myl)
for (int i = 0; i < AllNews.Count; i++)
myl.Add(AllNews[i].text);
IFormatProvider provider = CultureInfo.InvariantCulture;
DateTime myTime = DateTime.ParseExact(AllNews[i].original_time, "DyyMMddTHHmm", provider);
string results = myTime.ToString("HH:mm דווח במקור בתאריך : dd.MM.yy : שעה");
myl.Add(results);
myl.Add(AllNews[i].link);
myl.Add(Environment.NewLine);
myListWithoutLinks.Add(AllNews[i].text);
myListWithoutLinks.Add(results);
myListWithoutLinks.Add(Environment.NewLine);
for (int i = 0; i < myl.Count; i++)
myl[i] = Regex.Replace(myl[i], @"\t|\n|\r", "");
And use it:
ListToStringList(myList);

URGENT PLEASE:How can I run a a class file on the Apache server?

Hi Guys and Gurus,
I am seeking some favor all of experienced gurus, i.e.
How can I run a a class file on the Apache server? Can I run through an Applet?
How can I set Environment variables in Windows2000 Professional Environment?
Actually, I want to extract some records from a MySQL Database running on Apache Server. I wrote a program just to select the columns and show them. It is now a Class file, Now how can I run this class file from the Server???
The code is here
import java.sql.*;
public class RecordShow {
public static void main(String args[]) {
String url = "jdbc:mysql://localhost/myhost";
Connection con;
String query = "select mytable.column," +
"from mytable " +
"where mytable.column = 1";
Statement stmt;
try {
Class.forName("com.mysql.jdbc.Driver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());
try {
con = DriverManager.getConnection(url,
"myuser", "mypassword");
stmt = con.createStatement();
ResultSet rs = stmt.executeQuery(query);
ResultSetMetaData rsmd = rs.getMetaData();
int numberOfColumns = rsmd.getColumnCount();
int rowCount = 1;
while (rs.next()) {
System.out.println("Row " + rowCount + ": ");
for (int i = 1; i <= numberOfColumns; i++) {
System.out.print(" Column " + i + ": ");
System.out.println(rs.getString(i));
System.out.println("");
rowCount++;
stmt.close();
con.close();
} catch(SQLException ex) {
System.err.print("SQLException: ");
System.err.println(ex.getMessage());
Please advise... THANKS
VJ

Ehm, I wasn't referring to you at all... read up,
there's a comment by jschell saying that CGI might be
easier/better for his purposes.
Yep.
I know PHP/Perl/whatever might be easier for some
purposes, but only if you happen to know them and want
to/are able to use them. Ok. But you aren't the one asking the question are you. And the person who asked the question seems to have absolutely no familiarity with Apache or applets.
So whatever they do they are going to have to learn a lot.
And that does indeed suggest that in all likelyhood they have not investigated the alternatives.
And for the vast majority of internet applications, especially with smaller projects (obvious this person is not working with a large team), using perl, or something besides java, is going to be the best business solution. It is simpler, and more secure (probably due to the fact that it is simpler.)
Since this is a Java forum, I
answer under the assumption that people have made a
choice one way or another to use a Java solution to
their problem, so I try to solve it in Java first, and
only when that fails (very seldom) do I turn to other
solutions.You approach problems by arbritrarily deciding to try to solve it in java first and only if you fail do you then look to other solutions?
My first step is to try to figure out which of the various avenues is going to cost less. (And a secondary, but non-trivial concern, is then to convince the customer that just because they have heard of a buzz word like 'enterprise bean' that it doesn't mean that is a cost effective solution.) We must come from different worlds.

How can I run a a class file on the Apache server?

Hi Guys and Gurus,
I am seeking some favor all of experienced gurus, i.e.
How can I run a a class file on the Apache server?
Actually, I want to extract some records from a MySQL Database running on Apache Server. I wrote a program just to select the columns and show them. It is now a Class file, Now how can I run this class file from the Server???
Please advise...
VJ

cross posted
http://forum.java.sun.com/thread.jsp?thread=299137&forum=31&message=1184025

Is a Java Virtual Machine different from the Java Runtime Environment?

Ok I have heard people say they are running a java virtual machine, but how is that different from the Java Runtime Environment you install on any computer to run Java? Also if it is different what is the purpose of it and using commands like this:
-Xms512m -Xmx1024m -XX:MaxPermSize=256m -XX:+UseParNewGC -XX:+UseConcMarkSweepGC

I've noticed lately that at certain web pages a window
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Windows Update website it states that there are no
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Thank you in advance.I am having the same problem. I downloaded the JVM download from the sun homepage... and I still can't use digichat applet.. anyone have a fix?
>
>

How is the java.lang.StringBuffer class different from the java.lang.String

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