I have a Java program that runs from command prompt / blueJ's terminal window fine.
Is there a way that I can run this from a browser?
I guess my question is, is there anything that simulates the terminal window in a browser?
If not, do you have a suggestion as to how to put this online? It uses scanner / system.out.println a lot.
Thank you
There are two main technologies for helping publish a Java application via a browser:
Applets (displays inside a browser, kind of like Flash)
Java Web Start (launches via browser, but then runs and displays in a separate window.)
It most most common to use Swing to develop the user interface of an Applet or Java Web Start application. So it might be interesting to read about how to emulate a console window in Swing.
I'm not sure if this helps, but when you access a website that uses Java, with your browser, you can decide to see the Java console, if you have it enabled in your Java settings. But only people with that option turned on will get to see it.
Otherwise you could use javascript to incorporate results into the html of the page, or maybe make an applet with a "console" included.
You can embed in an applet, not only GUI you can use applets to invoke any method. And you can view console view ,[ Java Icon pops up on system tray bar in windows,on right clicking on the java icon, you can view console ]
Related
I made a java program for a pop-up from time to time by running a batch file. Application is working fine but after running the application(Batch file) we are able to see the cmd prompt in taskbar(minimize state), but i want the application run in background (like skype or gtalk).
Please help me.
Thank you in advance
Make sure you launch it using javaw (instead of java).
Relevant portion from the first link from the first search here:
This is provided as a helper so that application launches its own GUI window and will not launch a console. Whenever we want to run a GUI based application and don’t require a command console, we can use this as application launcher.
I hope this helps you.
Use a vbs script to invoke the batch script it would hide the window
CreateObject("Wscript.Shell").Run "yourbatchname.bat",0,True
I've got a need to navigate java-applet programmatically and I am not that keen on Java platform. So lets assume I've got IE process stated with appropriate java applet loaded. Next I need to have some actions taken to this particular applet, like, lets say, sending WM_COMMAND to dialog along with BN_CLICKED code like I do with Windows in C. Assuming it's not a regular window I can refer to using HWND, I would like to ask someone for recommendations on how to do this.
As I understand you want to navigate (sending keystrokes and mouse clicks) a java-applet on the client side. It depends if you own the applet (say: you have the code and can change it) or if the applet is closed source and you just want to remote it.
In the first case use javascript to automate it. Change the containing HTML page to include some Javascript and pass parameters to the applet as described in the Java Tutorials.
If the applet accepts parameters, but you cannot change the HTML page, use a GreaseMonkey alternative for IE.
Your other approach (sending Windows Messages from an extern application to IE) should also work. Start Spy++ (use the 64bit version if you are using a 64bit Windows), choose "Search - Find window..." and drag the "Finder Tool" icon over the applet and release it. You will see then the HWND and if you press search you will see the window inside IE window hierarchy. So, yes you can send keystrokes and mouse clicks to a browser.
If I would automate the browser I would use Geb. You code a "web site test" in Groovy, just look at the Geb index page.
You could try to record a navigation through the applet with FireFox + "Selenium IDE" then export it and try run it in a Java Application with the Selenium IE WebDriver.
Information about Selenium can be found here : http://docs.seleniumhq.org/
Maybe this question will also help you : How to automate Java applet?
I have a simple java applet that retrieves an image from a server and prints it out. The only problem is that I get the following java security warning:
Researching on this site and all over the web, some people suggest that I sign the applet (I tried that to no avail) and others suggest that I Modify a local java security setting but that isn't feasible for my clients.
Not only do I get this warning at the start of my applet, but seemingly any time the code attempts to interact with the printer, the dialog re-appears. Also, note that there is no checkbox next to 'Always allow this applet to access the printer'. These symptoms show on any browser.
How do I get java to respect the users choice to allow it to send jobs to the printer?
You might use the JNLP API services in a sand-boxed applet in a plug-in 2 JRE. They will still prompt the user each first time they go to print, but should also put an 'always allow' check-box on the dialog (though it really only applies for that run). See a demo. of the PrintService.
See also the applet info. page that includes a link on the Next Generation in Applet Java Plug-in Technology which "..brings new abilities to applets: such as .. allowing embedded applets to gain full access to the services of Java Web Start."
I am creating a program using Java Sockets in which I capture the client desktop and send messaging to client. Its working properly but now I want to block Client applications like Notepad, MS-Word, etc.
How can I do this?
Thanks.
It is hard to do using pure java API.
I do not know what do you mean when you say "block". The easiest way is to check from time to time running processes and kill one named "notepad" by executing taskkill from java.
If you wish to achieve effect of inactivity of application, i.e. user sees the notepad but cannot type you can do the following.
You have to check which application is on front. There is no clean pure java solution for this but you can probably write VBScript or JScript that does this task and run it from java. Once you detected that notepad is on top create transparent window (or even probably half-transparent window) that occupies full screen. Bring it on top. User will not be able to type into notepad because your window is on top but will see it.
Here is reference how to create transparent windows: http://java.sun.com/developer/technicalArticles/GUI/translucent_shaped_windows/
Good luck.
hii every one
good morning
I have created one project on JApplet
it runs successfully on Applet window
but i want to run it on web browsers(Internet explorer , Mozilla firefox, Safari, etc.)
I m using Mac os x and i want to run it on Safari.
You have to create an html which refers to the applet. Open the html in browser.
Take a look here for the applet tag http://www.w3schools.com/TAGS/tag_applet.asp
Using Mac OS X, in /Applications/Utilities you'll find Java Preferences.app. In the Advanced tab, you can enable the Java Console, which may tell you more about what's wrong when you open your HTML page in a browser.
Also, you can edit your question to add code, etc.
Addendum: You might want to start with a known working example.