help needed

hi friends....i am stuck in my code

i am trying to assign a value of javascript variable to a java variable but it is giving errors

is there any way of doing this.....i searched a lot but found none

any suggestion will be highly appreciated

In what are you trying to do this?

Quote:

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Originally Posted by Tolls

In what are you trying to do this?

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i want to pass a value to a bean to do some operation which is stored in a javascript variable

So you have some javascript in an html page?
Is the Java in an applet or on the web server?

Quote:

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Originally Posted by Tolls

So you have some javascript in an html page?
Is the Java in an applet or on the web server?

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i am implementing ajax in my html page and java is on web server

So your Ajax call to the server will have to have a parameter in it containing the value held in the variable. Then on the server you can extract that in the usual way from the request (or whatever framework you happen to be using).

Quote:

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Originally Posted by Tolls

So your Ajax call to the server will have to have a parameter in it containing the value held in the variable. Then on the server you can extract that in the usual way from the request (or whatever framework you happen to be using).

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you are right....but that is one way.
what if i want to use that parameter on the same page i.e that javascript variable

Is there any way to assign the value of javascript variable in java variable

Are you saying that you want the js variable to be sent to the server and then reset the js variable to something returned by the server?

i want to pass the value of js variable in a bean.....how is that possible??

Do you understand how your browser communicates with the web server?
You can't simply send a bean...especially since (as far as your browser is concerned) a bean is meaningless.

u put some code here to see exactly what u want

Code:

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var date=frm.date1.value;
var a=<%=nameObj.check(date)%>

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now the error is coming on line "var a=<%=nameObj.check(date)%>"
that date cannot be resolved

You can't do that.
Java runs on the server.
That javascript runs on the client after all the Java code has finished running.

Quote:

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Originally Posted by r035198x

You can't do that.
Java runs on the server.
That javascript runs on the client after all the Java code has finished running.

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ohhk....i willl do it with other ways
thanx a lot

You can do..Iam storing some boolean in jsp and trying to assign the boolean to javascript.After assigning based on boolean type iam doing if..see below

test.jsp
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<%
boolean inputFlag = true;
%>
<script language ="javascript">
var flag = <%= inputFlag%>;
if(flag )
document.writeln("Hi");
else
document.writeln("Bye");

</script>
</HEAD>
</HTML>

this is not what i asked
well this is true but the reverse is not i.e you cannot assign the value of a js variable to a java variable and moreover my problem was that i was trying to pass the value of a js variable in a bean which was giving errors.....

u can do one thing...u can have some textfield or hidden field.assign the value to this and retreive thru jsp.

Quote:

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Originally Posted by RamyaSivakanth

u can do one thing...u can have some textfield or hidden field.assign the value to this and retreive thru jsp.

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do you mean that to assign the value to the field which is in a form and then retrieving it on another page through request.getParameter

yes u can do as u said and simplfy in receiving the value without going to other page

in this case i have to go to other page