java - Is loop is getting stuck somewhere? -

my code wont execute way want. put println statements throughout actionperformed class , think getting stuck @ end of foe loop because goes through if statement once. there huge i'm overlooking, can see whats wrong?

import java.awt.eventqueue; import java.awt.event.actionevent; import java.awt.event.actionlistener; import java.util.random;  import javax.swing.imageicon; import javax.swing.jbutton; import javax.swing.jframe; import javax.swing.jlabel; import javax.swing.jpanel; import javax.swing.jprogressbar; import javax.swing.swingconstants; import javax.swing.uimanager; import javax.swing.border.emptyborder;       public class frame extends jframe implements actionlistener{          public jpanel contentpane;         public int yesnum, nonum;         public jprogressbar progressbar;      //  ######### config ##########         public int gennum = 100_000;     //edit gennum change number of tries           /**          * launch application.          */         public static void main(string[] args) {             try {                 uimanager.setlookandfeel("com.apple.laf.aqualookandfeel");             } catch (throwable e) {                 e.printstacktrace();             }             eventqueue.invokelater(new runnable() {                 public void run() {                     try {                         frame frame = new frame();                         frame.setvisible(true);                     } catch (exception e) {                         e.printstacktrace();                     }                 }             });         }          /**          * create frame.          */         public frame() {             setdefaultcloseoperation(jframe.exit_on_close);             setbounds(100, 100, 300, 195);             contentpane = new jpanel();             contentpane.setborder(new emptyborder(5, 5, 5, 5));             setcontentpane(contentpane);             contentpane.setlayout(null);              jlabel lab = new jlabel("click generate " + gennum + " times");             lab.sethorizontalalignment(swingconstants.center);             lab.setbounds(5, 5, 289, 16);             contentpane.add(lab);              jbutton b = new jbutton("generate");             b.seticon(new imageicon("/users/colby/desktop/checl.png"));             b.setactioncommand("generate");             b.setbounds(80, 33, 139, 36);             contentpane.add(b);              jlabel yeslab = new jlabel("yes number: " + yesnum);             yeslab.setbounds(22, 81, 117, 16);             contentpane.add(yeslab);              jlabel nolab = new jlabel("no number: " + nonum);             nolab.setbounds(22, 109, 117, 16);             contentpane.add(nolab);              progressbar = new jprogressbar();             progressbar.setstringpainted(true);             progressbar.setbounds(5, 141, 289, 20);             progressbar.setmaximum(gennum);             contentpane.add(progressbar);              b.addactionlistener(this);          }          public void actionperformed(actionevent e){             random rand = new random();             int num = rand.nextint(1);             int yescounter = 0;             int nocounter = 0;              for(int counter = 1; counter < 100_000;){                 if(num == 0){                     system.out.println("testing yes");                     yescounter++;                     system.out.println(counter+ ": yes");                     progressbar.setvalue(counter);                  } else if(num == 1){                     system.out.println("testing no");                     nocounter++;                     system.out.println(counter+ ": no");                     progressbar.setvalue(counter);                 }                     num = rand.nextint();                 }              yescounter = yesnum;             nocounter = nonum;           }     } 

for(int counter = 1; counter < 100_000;    )                                        ^^^ 

you missing iteration step, should increment counter there (++counter).

in addition long blocking task yours shouldn't executed in edt, should have it's own thread, since working gui.