Greyscale bars/Display: Difference between revisions

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 '''Solution:'''
 <lang j>   load 'viewmat'
-   size=. 2{.".wd'qm' NB. J6
+   NB. size=. 2{.".wd'qm' NB. J6
-   size=. getscreenwh_jgtk_ '' NB. J7
+   NB. size=. getscreenwh_jgtk_ '' NB. J7
+   size=. 2 3{_".wd'qscreen' NB. J9
    rows=. (2^3+i.4),._1^i.4
    bars=. ((64%{.)#[:(<:@|%~i.)*/)"1 rows
    togreyscale=. (256#. [:<.255 255 255&*)"0
-   'rgb' viewmat (4<.@%~{:size)# (64<.@%~{.size)#"1 togreyscale bars</lang>
+   'rgb' viewmat (4<.@%~{:size)# (64<.@%~{.size)#"1 togreyscale bars
+   wd 'pmove 0 _30 ',":size [ wd 'psel ',1{::,hforms_jviewmat_'' NB. J9</lang>
-Note that this solution is not posted directly to the screen but to a viewmat window, which may not be centered.
+Note that hardware changes over the years have left their mark on interface protocols, which shows up here as language changes.
 =={{header|Java}}==