How to make an image move using the keyboard in java? -


i have maze need ball move through, don't know code need use move image of ball around maze. have been given hint need swap images round.

import java.awt.*; import java.awt.event.*;  import javax.swing.*;  public class cballmaze extends jframe implements actionlistener  { //below have declared different objects have used throughout program  private jbutton buttonright, buttonleft, buttonup, buttondown, buttontl, buttontr, buttonbl, buttonbr, buttoncenter, optionone, optiontwo, optionthree, optionexit, scenarioact, scenariorun, scenarioreset, compassph; private jbutton [] game = new jbutton [208]; private jpanel panelcentre, panelright, panelbottom, buttonpanel, compasspanel, optionspanel, selectionpanel, panelact, panelrun, panelreset, panelslider; private jtextfield optiontf, squaretf, directiontf; private jlabel option, square, direction, compassdirection; private jslider speedslider; private string firstoption = "1", secondoption = "2", thirdoption = "3", updirection = "north", rightdirection = "east", downdirection = "south", leftdirection = "west"; private int i; private int[] map = new int[]         {         1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,         3,1,3,3,3,1,3,3,3,1,3,3,3,3,3,3,         3,1,3,3,3,1,3,3,3,1,3,3,3,3,3,3,         1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,         3,3,1,3,3,3,1,3,3,3,3,1,3,3,3,3,         3,3,1,3,3,3,1,3,3,3,3,1,3,3,3,3,         1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,         3,1,3,3,3,1,3,3,3,1,3,3,3,3,3,3,         3,1,3,3,3,1,3,3,3,1,3,3,3,3,3,3,         1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,         3,3,1,3,3,3,1,3,3,3,3,1,3,3,3,3,         3,3,1,3,3,3,1,3,3,3,3,1,3,3,3,3,         4,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,         };  final imageicon iconcompassnorth = new imageicon("north.jpg");  final imageicon iconcompasswest = new imageicon("west.jpg"); final imageicon iconcompasssouth = new imageicon("south.jpg"); final imageicon iconcompasseast = new imageicon("east.jpg"); imageicon iconreset = new imageicon("reset.jpg"); imageicon iconrun = new imageicon("run.jpg"); imageicon iconact = new imageicon("act.jpg"); imageicon iconsand, iconwhite, iconball, iconend;  public cballmaze(string title) {     super(title); } public static void main(string[] args) {     cballmaze cballmaze = new cballmaze("cballmaze ball maze application");     cballmaze.setsize(775, 650);     cballmaze.creategui();     cballmaze.setvisible(true); } private void creategui() {        setdefaultcloseoperation(exit_on_close);     container window = getcontentpane();     window.setlayout(new borderlayout() );      //panels      panelcentre = new jpanel();     panelcentre.setpreferredsize(new dimension(625, 450));     panelcentre.setbackground(color.black);     window.add(panelcentre);     panelcentre.setlayout(new gridlayout(13, 16));      panelright = new jpanel();     panelright.setpreferredsize(new dimension(180, 450));     panelright.setbackground(color.white);     window.add(panelright, borderlayout.east);      optionspanel = new jpanel();     optionspanel.setpreferredsize(new dimension(150, 100));     optionspanel.setbackground(color.white);     panelright.add(optionspanel, borderlayout.east);      buttonpanel = new jpanel();     buttonpanel.setpreferredsize(new dimension(175, 100));     buttonpanel.setbackground(color.white);     panelright.add(buttonpanel, borderlayout.east);      selectionpanel = new jpanel();     selectionpanel.setpreferredsize(new dimension(175, 150));     selectionpanel.setbackground(color.white);     panelright.add(selectionpanel, borderlayout.east);      imageicon cw = new imageicon("west.jpg");      compasspanel = new jpanel();     compasspanel.setpreferredsize(new dimension(175, 300));     compasspanel.setbackground(color.white);     panelright.add(compasspanel, borderlayout.east);      panelbottom = new jpanel();     panelbottom.setpreferredsize(new dimension(875, 50));     panelbottom.setbackground(color.white);     window.add(panelbottom, borderlayout.south);      panelact = new jpanel();     panelact.setpreferredsize(new dimension(125, 40));     panelact.setbackground(color.white);     panelbottom.add(panelact, borderlayout.south);      panelrun = new jpanel();     panelrun.setpreferredsize(new dimension(125, 40));     panelrun.setbackground(color.white);     panelbottom.add(panelrun, borderlayout.south);      panelreset = new jpanel();     panelreset.setpreferredsize(new dimension(125, 40));     panelreset.setbackground(color.white);     panelbottom.add(panelreset, borderlayout.south);      panelslider = new jpanel();     panelslider.setpreferredsize(new dimension(200, 40));     panelslider.setbackground(color.white);     panelbottom.add(panelslider, borderlayout.south);      //displays      option = new jlabel("option: ");     optionspanel.add(option, borderlayout.line_start);     option.setenabled(true);     option.setforeground(color.black);     option.sethorizontalalignment(jlabel.left);      optiontf = new jtextfield("1");     optionspanel.add(optiontf, borderlayout.line_end);     optiontf.setenabled(true);     optiontf.setpreferredsize(new dimension(50, 25));     optiontf.sethorizontalalignment(jtextfield.center);      square = new jlabel("square:   ");     optionspanel.add(square, borderlayout.line_start);     square.setenabled(true);     square.setforeground(color.black);     square.sethorizontalalignment(jlabel.left);      squaretf = new jtextfield("");     optionspanel.add(squaretf, borderlayout.line_end);     squaretf.setenabled(true);     squaretf.setpreferredsize(new dimension(50, 25));     squaretf.sethorizontalalignment(jtextfield.center);      direction = new jlabel("direction:  ");     optionspanel.add(direction, borderlayout.line_start);     direction.setenabled(true);     direction.setforeground(color.black);     direction.sethorizontalalignment(jlabel.left);      directiontf = new jtextfield("still");     optionspanel.add(directiontf, borderlayout.line_end);     directiontf.setenabled(true);     directiontf.setpreferredsize(new dimension(50, 25));     directiontf.sethorizontalalignment(jtextfield.center);      //buttons      buttontl = new jbutton("");     buttonpanel.add(buttontl);     buttontl.setpreferredsize(new dimension(45, 25));     buttontl.setenabled(false);      buttonup = new jbutton("^");     buttonpanel.add(buttonup);     buttonup.setpreferredsize(new dimension(45, 25));     buttonup.addactionlistener(this);     buttonup.addactionlistener(new actionlistener()      {         public void actionperformed(actionevent e)          {             directiontf.settext(updirection);             compassdirection.seticon(iconcompassnorth);         }     });      buttontr = new jbutton("");     buttonpanel.add(buttontr);      buttontr.setpreferredsize(new dimension(45, 25));     buttontr.setenabled(false);      buttonleft = new jbutton("<");     buttonpanel.add(buttonleft);     buttonleft.setpreferredsize(new dimension(45, 25));     buttonleft.addactionlistener(new actionlistener()      {         public void actionperformed(actionevent e)          {             directiontf.settext(leftdirection);             compassdirection.seticon(iconcompasswest);         }     });      buttoncenter = new jbutton("");     buttonpanel.add(buttoncenter);     buttoncenter.setpreferredsize(new dimension(45, 25));     buttoncenter.setenabled(false);      buttonright = new jbutton(">");     buttonpanel.add(buttonright);     buttonright.setpreferredsize(new dimension(45, 25));     buttonright.addactionlistener(new actionlistener()      {         public void actionperformed(actionevent e)          {             directiontf.settext(rightdirection);             compassdirection.seticon(iconcompasseast);         }     });      buttonbl = new jbutton("");     buttonpanel.add(buttonbl);     buttonbl.setpreferredsize(new dimension(45, 25));     buttonbl.setenabled(false);      buttondown = new jbutton("v");     buttonpanel.add(buttondown);     buttondown.setpreferredsize(new dimension(45, 25));     buttondown.addactionlistener(new actionlistener()      {         public void actionperformed(actionevent e)          {             directiontf.settext(downdirection);             compassdirection.seticon(iconcompasssouth);         }     });      buttonbr = new jbutton("");     buttonpanel.add(buttonbr);     buttonbr.setpreferredsize(new dimension(45, 25));     buttonbr.setenabled(false);      optionone = new jbutton("option one");     selectionpanel.add(optionone);     optionone.setpreferredsize(new dimension(125, 25));     optionone.addactionlistener(new actionlistener()      {         public void actionperformed(actionevent e)          {             optiontf.settext(firstoption);         }     });      optiontwo = new jbutton("option two");     selectionpanel.add(optiontwo);     optiontwo.setpreferredsize(new dimension(125, 25));     optiontwo.addactionlistener(new actionlistener()      {         public void actionperformed(actionevent e)          {             optiontf.settext(secondoption);         }     });      optionthree = new jbutton("option three");     selectionpanel.add(optionthree);     optionthree.setpreferredsize(new dimension(125, 25));     optionthree.addactionlistener(new actionlistener()      {         public void actionperformed(actionevent e)          {             optiontf.settext(thirdoption);         }     });      optionexit = new jbutton("exit");     selectionpanel.add(optionexit);     optionexit.setpreferredsize(new dimension(125, 25));      scenarioact = new jbutton("act");     scenarioact.seticon(iconact);     panelact.add(scenarioact);     scenarioact.addactionlistener(this);      scenariorun = new jbutton("run");     scenariorun.seticon(iconrun);     panelrun.add(scenariorun);     scenariorun.addactionlistener(this);      scenarioreset = new jbutton("reset");     scenarioreset.seticon(iconreset);     panelreset.add(scenarioreset);     scenarioreset.addactionlistener(this);      jslider speedslider = new jslider(jslider.horizontal, 0, 50, 25);     speedslider.setmajortickspacing(10);     speedslider.setminortickspacing(5);     speedslider.setpaintticks(true);     speedslider.setbackground(color.white);     speedslider.setlabeltable(speedslider.createstandardlabels(10));     panelslider.add(speedslider);      compassdirection = new jlabel();     compasspanel.add(compassdirection);      try     {         iconsand = new imageicon("sand.jpg");     }     catch (exception e)     {         system.err.println("sand icon "+e);     }      try     {         iconball = new imageicon("sand60x60.png");     }     catch (exception e)     {         system.err.println("ball icon "+e);     }      try     {         iconwhite = new imageicon("white32x32.jpg");     }     catch (exception e)     {         system.err.println("white icon "+e);     }      try     {         iconend = new imageicon("sandstone.jpg");     }     catch (exception e)     {         system.err.println("end icon"+e);     }      (i=0;i<208;i++)     {         game[i] = new jbutton ();          if(map[i]==1)         {             game[i].seticon(iconsand);         }         if(map[i]==2)         {             game[i].seticon(iconball);         }         if(map[i]==3)         {             game[i].seticon(iconwhite);         }         if(map[i]==4)         {             game[i].seticon(iconend);         }          game[i].setborder(null);         game[i].setpreferredsize(new dimension(32, 32));         game[i].addactionlistener(this);         panelcentre.add(game[i]);      } } public void actionperformed(actionevent arg0)  {  } }

sand60x60 sand white32x32

try (works me):

after line panelcentre.add(game[i]); enter this:

    game[i].addkeylistener(new keylistener() {          @override         public void keytyped(keyevent e) {         }          @override         public void keypressed(keyevent e) {         }          @override         public void keyreleased(keyevent e) {             system.out.println(e.getkeycode());             switch (e.getkeycode()) {                 case keyevent.vk_right:                     system.out.println("right...");                      break;                 case keyevent.vk_left:                     system.out.println("left...");                      break;                 case keyevent.vk_down:                     system.out.println("down...");                      break;                 case keyevent.vk_up:                     system.out.println("up...");              }         }     });

this should print out direction typed arrow keys.


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