Programming Forums > Application Development > Java

Eric the Red · Feb 21st, 2006, 11:57 PM

I'm working on a graphing calculator for java and i need to clear the screen. I did a search in google "Clear screen for Java" and all the posts say "This isn't an easy task. One source says to "First import the windows api and run this procedure that he created". Come on there must be some easier way like "clearscreen()" isn't there please help me. Some of my friends have used clear screen in the past and i know that it didn't involve the windows api.

titaniumdecoy · Feb 22nd, 2006, 1:14 AM

You need to be more specific about what you want to do. What does "clear the screen" mean?

pal · Feb 22nd, 2006, 2:32 AM

Yea, I understand, there is System("cls"); for c++,
but I am not sure on how Java clears the screen.
It is odd that there isn't a straightforward descriptions on the web.

ReggaetonKing · Feb 22nd, 2006, 7:17 AM

why would you want to clear the screen for a graphing calculator anyways?

oNe8 · Feb 22nd, 2006, 2:43 PM

What is "the screen", like the object type, Almost every swing object has a method to either dispose of it or clear it.

titaniumdecoy · Feb 22nd, 2006, 3:08 PM

I assume you are talking about clearing the console.

This is possible, but not easy. You will need to use JNI.

Here is a tutorial on how to clear the console and set color and cursor position.

You might find some of the comments at the bottom of this page helpful as well.

If that is too much work, you could just print "\n" enough times to clear the screen...

Eric the Red · Feb 22nd, 2006, 7:29 PM

Well i'm drawing a parabala and cubic curve. Using "drawOval" in a loop. I spoke to my friends and they say just use c.clear(); and 'c' is the console.

ReggaetonKing · Feb 22nd, 2006, 9:18 PM

Quote:

Originally Posted by titaniumdecoy

If that is too much work, you could just print "\n" enough times to clear the screen...

lol thats what I'm talking about! lol

Eric the Red · Feb 22nd, 2006, 9:30 PM

i'm just importing "import hsa.Console;"

and c.clear(); seems to be working. Anyone know why there is such a debate over something so simple?

andro · Feb 22nd, 2006, 10:28 PM

hsa.Console is not a standard java package.

Feb 21st, 2006, 11:57 PM	#1
Eric the Red Hobbyist Programmer Join Date: Feb 2006 Posts: 214 Rep Power: 0	Clear screen with Java I'm working on a graphing calculator for java and i need to clear the screen. I did a search in google "Clear screen for Java" and all the posts say "This isn't an easy task. One source says to "First import the windows api and run this procedure that he created". Come on there must be some easier way like "clearscreen()" isn't there please help me. Some of my friends have used clear screen in the past and i know that it didn't involve the windows api.

Feb 22nd, 2006, 7:17 AM	#4
ReggaetonKing Sexy Programmer Join Date: Nov 2005 Location: New Jersey Posts: 891 Rep Power: 3	why would you want to clear the screen for a graphing calculator anyways? __________________ I would love to change the world, but they won't give me the source code!

Feb 22nd, 2006, 2:43 PM	#5
oNe8 Newbie Join Date: Jan 2006 Posts: 17 Rep Power: 0	What is "the screen", like the object type, Almost every swing object has a method to either dispose of it or clear it. __________________ http://img523.imageshack.us/img523/8436/user9kz.jpg

Feb 22nd, 2006, 3:08 PM	#6
titaniumdecoy Expert Programmer Join Date: Nov 2005 Posts: 856 Rep Power: 3	I assume you are talking about clearing the console. This is possible, but not easy. You will need to use JNI. Here is a tutorial on how to clear the console and set color and cursor position. You might find some of the comments at the bottom of this page helpful as well. If that is too much work, you could just print "\n" enough times to clear the screen... Last edited by titaniumdecoy; Feb 22nd, 2006 at 3:22 PM.

Feb 22nd, 2006, 7:29 PM	#7
Eric the Red Hobbyist Programmer Join Date: Feb 2006 Posts: 214 Rep Power: 0	Just got back Well i'm drawing a parabala and cubic curve. Using "drawOval" in a loop. I spoke to my friends and they say just use c.clear(); and 'c' is the console.

Feb 22nd, 2006, 1:14 AM	#2
titaniumdecoy Expert Programmer Join Date: Nov 2005 Posts: 856 Rep Power: 3	You need to be more specific about what you want to do. What does "clear the screen" mean?

Feb 22nd, 2006, 2:32 AM	#3
pal Programmer Join Date: Mar 2005 Location: Washington Posts: 90 Rep Power: 4	Yea, I understand, there is System("cls"); for c++, but I am not sure on how Java clears the screen. It is odd that there isn't a straightforward descriptions on the web.

Feb 22nd, 2006, 9:30 PM	#9
Eric the Red Hobbyist Programmer Join Date: Feb 2006 Posts: 214 Rep Power: 0	i'm just importing "import hsa.Console;" and c.clear(); seems to be working. Anyone know why there is such a debate over something so simple?

Feb 22nd, 2006, 10:28 PM	#10
andro Professional Programmer Join Date: Oct 2005 Location: California Posts: 312 Rep Power: 3	hsa.Console is not a standard java package.

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Programming Forums > Application Development > Java

Clear screen with Java