Hi friends,
I hope everyone is doing fine and well. I am wrtting a small applet in java which listens to changes in text fields. Please have a look at my code, then we will talk about it.
Code:
import java.awt.*;
import java.applet.*;
import java.awt.event.TextEvent;
import javax.swing.*;
import java.awt.event.TextListener;
import java.awt.TextComponent;
public class Event_Handling extends Applet implements TextListener
{
String s;
public void init()
{
addTextListener( this ); // Compiler says it(addTextListener) is not defined
addTextListener( this );
TextField tf1 = new TextField();
add( tf1 );
}
public void paint( Graphics g )
{
g.drawString(msg, 50, 50);
}
public void textValueChanged( TextEvent te )
{
msg = "Text value changed";
repaint();
}
}
Java compiler doesn't recognize addTextListener, what must be the problem. It does recognize addMouseListener, but why not addTextListener???
Looking forward to your replies.
Thanks
Moderator's Comments:
Code tags for code, please.
Last edited by Corona688; 04-30-2012 at 12:51 PM..
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LEARN ABOUT MOJAVE
javaws
javaws(1) General Commands Manual javaws(1)NAME
javaws - Java Web Start launcher command
SYNOPSIS
javaws [ options ] [ URL ]
PARAMETERS
options Command-line options. Options many be in any order. For a discussion of the various options, see OPTIONS below.
URL Uniform Resource Locator (URL) of the JNLP (Java Network Launching Protocol) file.
DESCRIPTION
The javaws command launches Java Web Start, which is the reference implementation of the Java Network Launching Protocol (JNLP). Java Web
Start launches java application/applets hosted on a network.
Without any options javaws will launch the Java JNLP Application Manager, from which users can launch applications/applet or configure Java
Web Start.
If a URL for a JNLP file is specified, javaws will launch the Java application/applet specified in the JNLP file.
OPTIONS
The javaws launcher has a set of options that are supported in the current release. However, the options may be removed in a future
release. All -X options are non-standard and subject to change.
-offline
Runs Java Web Start in offline mode.
-uninstall URL
Removes a specific application/applet from the user's cache, as indicated by the URL for the JNLP file. Java Web Start will exit
after the command has completed.
-updateVersions
Updates the Java Web Start configuration file based on the current machine's settings. Java Web Start will exit when the command is
completed.
-Xclearcache
Clears the user's cache. Java Web Start will exit after the command has completed.
-Xnosplash
Disables the display of the initial splash screen.
-import
Imports the application specified by the URL into the user's cache but does not run it..
-silent
When used with the -import option, imports in silent mode; i.e., there will be no UI pop up. The process exit code will be either 0
if successful or 1 if not.
-codebase URL
Replaces the codebase with URL in the jnlp file specified when importing the resources. URL must be a valid URL.
-system
Uses the system cache instead of the user cache.
-shortcut
Allows the creation of shortcuts during silent import.
-association
Allows the creation of associations during silent import.
-open arguments
If specified, replaces the arguments in the jnlp file with -open arguments.
-print arguments
If specified, replaces the arguments in the jnlp file with -print arguments.
-online
Runs in online mode (default behavior).
-viewer
Runs the Java Application Cache Viewer (default if no URL is specified).
-userConfig property-name
Clears the specified deployment property.
-userConfig property-name property-value
Sets the specified deployment property to the specified value.
-wait If specified, the javaws process will not exit until the application exits.
FILES
For more information about the user and system cache and deployment.properties files, see http://java.sun.com/j2se/1.5.0/docs/guide/deploy-
ment/deployment-guide/properties.html
MORE INFORMATION
For more information about Java Web Start, see http://java.sun.com/j2se/1.5.0/docs/guide/javaws/index.html.
09 April 2004 javaws(1)
04-30-2012
