What is function to clear screen ??

hi,
What i s function to clear screen .. for example in C-languse we use clrscr();
like that what is function in java to clear screen.. that is in command prompt window clear

I dont thik u can do this...
since u are writing to a stream. so what ever is written is written...
but if u have any ur own component developed u can do this.
regards,
Karthik

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Urxvt patch: VTE like clear screen behavior

I've switched to urxvt last week. I come from the VTE world (gnome-terminal, xfce-terminal and such, the latter in my case). VTE has a nice feature to which I've accustomed myself. This is the way how it handles the clear screen function (ctrl-L).
In VTE when you press ctrl-L, the screen cursor position gets to top row and the lines get scrolled just before the visible portion of the window. This means that the scrollback remains intact so you can scroll back and see it later. If you press ctrl-L again when you are at top you get a bunch of empty lines - you can use this to mark the scrollback with empty portions when you are scrolling back large amounts of texts. This is handy for example when you want to quickly glance at an output from a command but you want to differentiate from different outputs - I press ctr-L several times before I execute the command and then I can just quickly scroll back - I immediately spot where the command began because it has a large black spot before it.
The way urxvt works in this case that it just positions the cursor to the top row and then just erases everything below that point. This means you lose valuable lines from the scrollback. Example: type "seq 1000", press ctr-L. Now you won't see the last lines of the command's output!
Now it is possible that I have a misconfigured urxvt and I'd be interested in the config option which I have misconfigured.
Here's a patch for urxvt which adds proper clear screen function and also adds the VTE-like functionality:
*** src/command.C 2011-10-29 18:06:07.000000000 +0200
--- src/command.C.patched 2011-10-29 18:05:28.000000000 +0200
*************** rxvt_term::process_csi_seq ()
*** 2932,2937 ****
--- 2932,2948 ----
case CSI_CUP: /* 8.3.21: (1,1) CURSOR POSITION */
case CSI_HVP: /* 8.3.64: (1,1) CHARACTER AND LINE POSITION */
+ if (nargs == 1 && current_screen == 0)
+ {
+ // This is usually followed with clear screen so add some extra
+ // lines to avoid deleting the lines already on screen. If we are
+ // already at the top, add an extra screen height of lines.
+ int extra_lines = nrow-1;
+ if (screen.cur.row == 0)
+ extra_lines += nrow;
+ for (int i = 0; i < extra_lines; ++i)
+ scr_add_lines (L"\r\n", 2);
+ }
scr_gotorc (arg[0] - 1, nargs < 2 ? 0 : (arg[1] - 1), 0);
break;
Last edited by rlblaster (2011-10-29 19:07:32)

Now I see what's happening! Your prompt uses '\e[H' which is used as move to home. I assumed that '\e[H' is usually followed with clear screen. This means if you use it to just move the cursor to home it won't work. I don't really see how could I fix this nicely but here's a workaround for your prompt: use '\e[1;1H'. In other words:
PS1=$'%{\e[s\e[1;1H\e[30;42;1m%}[%~][%M] %{\e[K\e[256C\e[8D\e[30;42;1m%} [%D{%H:%M}]%(?,%{\e[32;32m%}\u2588,%{\e[31;41;1m\u2588)%}%{\e[u\e[1A%}\n%{\e[0;32m%}> %{\e[0m%}'
By the way the feature of adding extra blank lines if your cursor is already at top won't work in your prompt because your cursor is always at least on row 1. You could change the patch from
if (screen.cur.row == 0)
to
if (screen.cur.row <= 1)
to have this feature.

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Hi, i installed ios 5 for my iphone 4 and the camera function on lock screen was on the first few days , now it doesn't show the lock screen . is there any change i can do . Pls help me to solve the issue.

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nishaadp wrote:
... it stucks with the apple logo , nothing works. Is anything i can do?
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Clear Screen, Sql plus Error, in release 10.2.0.1.0

Hi there,
I'm having problem in using clear screen command in SQLPlus utility of Oracle Release 10.2.0.1.0. When executing clear screen in SQL Plus ( in command prompt) in windows machine, suddenly a dialogue box opens and saying that "SQLPlus encountered an error and sorry for inconvenience "
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I have a an iMac 11,2 is there anyway I can stream what's on my computer screen to my HD TV? I have apple TV2 also.

I have a an iMac 11,2 is there anyway I can stream what's on my computer screen to my HD TV? I have apple TV2 also.

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ds store's opinion will be right in some, but not all cases.
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How to create a transaction code for a function group with screen 100 as st

Hello ,
I have requirement where I need to create a function group and create screen 100, 200, 300 and include the function in the screens.
Customer asked me to create a transaction with the screen 100 as the starting screen.
Can you please let me know how to create a transaction code for a function group with screen 100 as starting screen.
[ It is not a module pool program ].
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Moderator message - Please ask a specific question and do not ask the forum to do your work for you - post locked
Edited by: Rob Burbank on Jun 2, 2009 11:49 AM

Go to transaction SE93, enter a transaction code that you want and click on "create". Enter a text and select the "Transaction with Parameters" button. In the Default Values section, enter START_REPORT in the transaction field. Check the "skip initial screen" box. In the Name of Screen field section enter the following lines:
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D_SREPOVARI-REPORTTYPE                RW
D_SREPOVARI-REPORT                        ZPCA
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What should I set me screen resolution to in photoshop CC with my late 2009 27" iMac?

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What up with all the screen freezes since the updates?

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What is function to clear screen ??

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