How can I notice whether a class is loaded or not?

In the case of a instance, finallize() method can do it. But when it is a class?
Does anyone know the way?

In old JVM, the gc will collect any classes without any reference, however, JDK1.2 uses a new tech to collect classes, that is only if all classes that loaded by the same class loader do not have any reference to them, they are unloaded. So, in JDK1.2, if all you classes are loaded by the same class loader, once the class is loaded, it will be there untill you exit the program. Only if you use your own class loader to load some classes, or the application is a distributed application (that is, multiple JVMs are in use), the class unload and reload could be a problem.
There is no direct finalize thing for classes, maybe JVM profile could help, since some application can use it to analysis the running program's memory usage (includes classes loaded). Or maybe a customized class loader could help. I'm not sure. Also the static initial codes could let you know the class is re-loaded, though it can't tell you when the class is un-loaded.

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How can I know whether my IME is blocked or not?

Ask your wireless carrier.
Where did you acquire this iPhone? Common scam
is to sell iPhone in working condition so buyer can see
it works, then seller reports iPhone as stolen/lost for
insurance claim. Insurance company works with
cellular provider to blacklist the iPhone and suddenly
it no longer works.
Or is your iPhone still locked to a wireless carrier as
you imply in https://discussions.apple.com/thread/5001327?tstart=0

How can we check whether a ResultSet is EMPTY or NOT ?

i'm getting some data inside ResulSet (using JDBC inside Servlet).
now i want to redirect response according to ResultSet...., if ResultSet is EMPTY then on diff page, else on different page...
how can i check whether a ResultSet is empty or not...
i've used next() , wasNull() methods ,,, but not solving the purpose...
thanx in advance...

What you could do is to ask the database fora
record count and check that for zero.
How?????You just do an SQL statement but instead of the list of fields after SELECT you put
SELECT count(*) FROM ...... WHERE .....
That returns a single integer value into the resultset giving the number of matching records currently in the database.
The trouble is you can't be certain that when you subsequently access the records the number won't have changed, because databases are generally accessible to more than one process at a time and some other process might add or delete a record between counting and retrieving or, for that matter, during the process of retrieval.
Also the count is likely to take more time than just doing rs.next() and seeing if you get a record.
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rs = stmt.executeQuery(......);
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How can i check whether my phone is unlocked or not

rozhan.m wrote:
Im in srilanka, my sister brought me this phone from UK. i dont kwon how to call apple from here. pls help me
Nothing we can do to help you. If it was bought in the UK from an Apple store as unlocked, it is unlocked. If it was bought anywhere else, it will be locked, and only the carrier it is locked to will be able to unlock it.
If you've tried a local SIM and it has not worked, then you have your answer, it is locked.

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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

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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 call a nonstatic class

Hello All,
I've wrote a simple bean for my testcase that count a value (e.g. site access):
public class Bean1 {
private int accessCount = 1;
public int getAccessCount() {
return (accessCount++);
If I call the bean with a jsp-site, it works fine with different scope. e.g. session and application.
With session scope different browser count different. With application scope different bowser count together. Thats the normal attitude.
My jsp code:
<jsp:useBean id="counter" class="ml.view.Bean1" scope="session" />
<jsp:getProperty name="counter" property="accessCount" />
This don't work with a static bean (normal too), but I can only call a static class in my UIX site.
I call the bean from uix with the invoke element. Is that correct? How can I call a nonstatic class with a special scope? Which other solution ist possible?
My uix code:
<invoke method="getAccessCount" result="${uix.eventResult.getAccessCount}" instance="${sessionScope.myBean.getAccessCount}" exception="${uix.eventResult.error}" javaType="ml.view.myBean"/>
Thank you for any solution!
The error messages are:
java.lang.NullPointerException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java)
at oracle.cabo.servlet.event.InvokeEventHandler._invoke(Unknown Source)
at
and so forth...

false in my uix code example: javaType="ml.view.myBean"
correct: javaType="ml.view.Bean1"
Sorry :-) that was only an error in my post not in the really example.

If someones is using my account/apple id can they receive calls or messages too?? and how can i notice if someones using my apple id??

if someones is using my account/apple id can they receive calls or messages too?? and how can i notice if someones using my apple id??

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Create a new email address, for example at Yahoo or Gmail, or anywhere convenient (or you can use an existing address as long as it has never been associated with an Apple ID).
Go to http://appleid.apple.com and click 'Manage your Apple ID'. Sign in with the current ID.
Where it says 'Apple ID and primary email address' and gives your current ID email address, click 'edit'.
Enter your new address and click 'Save changes'.
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Then sign back in with your new ID. Your iCloud data will disappear from your devices when you sign out, but reappear when you sign back in.
I re-iterate: before you start, turn off 'Find My Mac' (or whatever) or you will need the services of Support.

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MMC status is green.
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Can I use sapcontorl interface?
regards,

Gaspard,
>MMC status is green.
>J2EE Engine status is "10"(RUNNING)
> Check the ABAP Stack
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Harish

Dear Harish,
You can block the asset through OAOA at asset class level blocking at Asset Class level, and same you can block for creation at a chart of depreciation level from AM05.
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How can I notice whether a class is loaded or not?

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