java - JSlider snapping to every 90th number -

my jframe window has system , feel , when add jslider , click on line, goes 90 steps forward or backward depending on mouse position. want diamond go under mouse , work if clicked , dragged on diamond.

here minimal program think happens in windows because in default , feel, didnt snap 90th numbers went ahead 1 number.

import java.awt.borderlayout;  import javax.swing.jframe; import javax.swing.jlabel; import javax.swing.jslider; import javax.swing.uimanager; import javax.swing.unsupportedlookandfeelexception; import javax.swing.event.changeevent; import javax.swing.event.changelistener;   @suppresswarnings("serial") public class test extends jframe {      int value = 300;     jslider slider;     jlabel label;      public test() {         setsize(300, 200);         setdefaultcloseoperation(exit_on_close);         setlocationrelativeto(null);         label = new jlabel(string.valueof(value));         slider = new jslider();         slider.setminimum(100);         slider.setmaximum(1000);         slider.setvalue(value);         slider.setsnaptoticks(false);         slider.addchangelistener(new changelistener() {             public void statechanged(changeevent e) {                 label.settext(string.valueof(slider.getvalue()));             }         });         add(label, borderlayout.north);         add(slider);         setvisible(true);     }      public static void main(string[] args) throws classnotfoundexception, instantiationexception, illegalaccessexception, unsupportedlookandfeelexception {         uimanager.setlookandfeel(uimanager.getsystemlookandfeelclassname());         new test();     } } 

import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.plaf.basic.*;  public class slidermousepressed extends jpanel {     public slidermousepressed()     {         jslider slider = new jslider(0, 50, 20);         slider.setmajortickspacing(10);         slider.setminortickspacing(5);         slider.setpaintticks(true);         slider.setpaintlabels(true);         add(slider);          snaptomouseclick( slider );     }      public static void snaptomouseclick(final jslider slider)     {         mouselistener[] ml = slider.getmouselisteners();          (mouselistener l : ml)             slider.removemouselistener(l);          mousemotionlistener[] mml = slider.getmousemotionlisteners();          (mousemotionlistener l : mml)             slider.removemousemotionlistener(l);          final basicsliderui ui = (basicsliderui)slider.getui();          basicsliderui.tracklistener tl = ui.new tracklistener()         {             //  position slider @ mouse             @override             public void mouseclicked(mouseevent e)             {                 point p = e.getpoint();                 int value = ui.valueforxposition(p.x);                 slider.setvalue(value);             }              // prevent scrolling while mouse button held down              @override             public boolean shouldscroll(int dir)             {                 return false;             }         };          slider.addmouselistener(tl);         slider.addmousemotionlistener(tl);     }      private static void createandshowui()     {          jframe frame = new jframe("slidermousepressed");         frame.setdefaultcloseoperation(jframe.exit_on_close);         frame.add( new slidermousepressed() );         frame.setlocationbyplatform( true );         frame.pack();         frame.setvisible( true );     }      public static void main(string[] args)     {         eventqueue.invokelater(new runnable()         {             public void run()             {                 createandshowui();             }         });     } } 

this example based on answer slight modification remove/add mousemotionlistener mouselistener make painting of thumb slider more consistent default behaviour. thumb painted @ same relative position mouse instead of @ left, when thumb dragged.