java - Updated Information In JFrame -


i have jframe "gamewindow" , class named "combat".

i trying update various components in gamewindow (jlabels, jprogressbars, etc.) variables in combat class. however, details never seem update. consider following:

public class combat { public static string attackname1; public static string punitname;  public static void setplayerunit(gameunit u) {      attackname1 = u.getattackname1();     punitname = u.getname().touppercase();     } }

and:

 public gamewindow() {      initialize();     gameframe.setvisible(true); }   private void initialize() {             gameframe = new jframe();     gameframe.setresizable(false);     gameframe.settitle("gamewindow");     gameframe.setbounds(100, 100, 800, 480);     gameframe.setdefaultcloseoperation(jframe.do_nothing_on_close);   jbutton pattack1 = new jbutton(combat.attackname1);  //<--------not being changed     sl_gamepanel.putconstraint(springlayout.north, pattack1, 0, springlayout.north, gametextpanel);     sl_gamepanel.putconstraint(springlayout.west, pattack1, 6, springlayout.east, textattackseparator);     sl_gamepanel.putconstraint(springlayout.south, pattack1, 34, springlayout.north, gametextpanel);     sl_gamepanel.putconstraint(springlayout.east, pattack1, 157, springlayout.east, textattackseparator);     gamepanel.add(pattack1);   jlabel pmobname = new jlabel(combat.punitname); //<--------not being changed     sl_ppanel.putconstraint(springlayout.north, pmobname, 10, springlayout.north, ppanel);     sl_ppanel.putconstraint(springlayout.west, pmobname, 129, springlayout.west, ppanel);     ppanel.add(pmobname);

why text buttons/jlabels not being updated? need change using "combat.variable" "combat.getvariable()"? possible, , if so, how can make work?

you state:

jbutton pattack1 = new jbutton(combat.attackname1); stated, text on jbutton not updated when changing variable in combat class.

you're confusing reference variable object represents , need understand different. while combat.attackname1 , jbutton's name refer same string object, strings immutable. when change string object variable referring have no effect on string displayed jbutton. solution: call jbutton's settext(...) method if want change displayed text.


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