Java swing boundary learning notes

There are several boundaries defined in swing: EmptyBorder, LineBorder, BevelBorder, SoftBevelBorder, MatteBorder, CompoundBorder, TitledBorder, etchedBorder: the following uses a small example to describe how these boundaries are used and how they work.

 

 

Class labelpanel extends jpanel {Border border; jlabel label; Public labelpanel () {// 3. setlayout (New gridlayout (3, 4, 15, 15) for grid layout with 3 rows * 4 columns and 5 Vertical spaces; // 4. create an emptyborder label Label = new jlabel ("empty", jlabel. center); label. setopaque (true); // create an emptyborder (top, left, bottom, right) Border = new emptyborder (1, 1, 1, 1 ); // assign the border to the tag. label. setborder (Border); add (Label); // 5. (roate a label wi lt. AR. etched border. label = new jlabel ("etched raised", jlabel. center); label. setopaque (true); // create a raised etching boundary border = new etchedborder (etchedborder. raised); label. setborder (Border); add (Label); // 6. create a label with a color border. label = new jlabel ("etched lowered", jlabel. center); label. setopaque (true); // etchedborder (INT etchtype, color highlighted, color shadow) Border = new etchedborder (etchedborder. lowered, color. red, color. blue); label. setborder (Border); add (Label); // 7. create a label with a convex and oblique cut boundary. label = new jlabel ("bevel up", jlabel. center); label. setopaque (true); border = new bevelborder (bevelborder. raised); // raisedbevel typelabel. setborder (Border); add (Label); // 8. create a label with the concave and oblique cut boundary. label = new jlabel ("bevel down", jlabel. center); label. setopaque (true); border = new bevelborder (bevelborder. lowered); // lowered bevel typelabel. setborder (Border); add (Label); // 9. create a label Label with highlighted and oblique cut boundary = new jlabel ("coloredbevel", jlabel. center); label. setopaque (true); border = new bevelborder (bevelborder. raised, // raised bevel typecolor. gray, color. yellow); // hightlight and SBA & 'colorslabel. setborder (Border); add (Label); // 10. create a label with a concave soft oblique cut boundary. label = new jlabel ("softbevel lowered", jlabel. center); label. setopaque (true); border = new softbevelborder (bevelborder. lowered); label. setborder (Border); add (Label); // 11. create a label with a rough border .. label = new jlabel ("matte icon", jlabel. center); label. setopaque (true); icon = new imageicon ("a.gif"); // Top = 20, Left = 20, Bottom = 20; right = 20 and matte iconborder = new matteborder (20, 20, 20, 20, icon); label. setborder (Border); add (Label); // 12. create a line border label .. label = new jlabel ("line", jlabel. center); label. setopaque (true); border = new lineborder (color. red, // line color = red5); // line thickness 5. label. setborder (Border); add (Label); // 13. create a gray line border label = new jlabel ("grayline", jlabel. center); label. setopaque (true); // create a gray lineborderborder = lineborder with a width of 1. creategraylineborder (); label. setborder (Border); add (Label); // 14. create a label for the hybrid border. label = new jlabel ("bevelborder \ n etchedborder", jlabel. center); label. setopaque (true); // create boundary border = new compoundborder (New bevelborder (bevelborder. raised), new etchedborder (etchedborder. raised); label. setborder (Border); add (Label); // 15. Create a label with a title boundary. label = new jlabel ("titled", jlabel. center); label. setopaque (true); border = new titledborder (New lineborder (color. red), "lined & titled", // Title titledborder. center, // Title just_ficaticr.titledborder.center, // Title location. new font ("sans", Font. bold, 16), // font. color. blue); // color label. setborder (Border); add (Label );}}

Create a new window and add the panel above.