java - Need to switch between different screens in swing -

i'm trying create program runs game of go. want 1 screen asks size of go board in question, 1 plays game, , 1 lets decide play again or not. effective way using swing? saw people talk using cardlayout on other questions understanding user can switch between screens on demand, isn't want.

i using eclipse if native gui builder in eclipse work better i've never figured out how make work.

a less modal approach allow user select , play 1 of several common games. using button based memory game example,

• enumerate supported game features.

• add instances of enum values jcombobox.

• handle changes using remove(), validate() , repaint() update game board.

in example, jlabel serves placeholder game. alternatively, leave game view in place, update observable game model, described here, , arrange listening view respond required.

import java.awt.borderlayout; import java.awt.color; import java.awt.dimension; import java.awt.eventqueue; import java.awt.event.actionevent; import java.awt.event.actionlistener; import javax.swing.jbutton; import javax.swing.jcombobox; import javax.swing.jframe; import javax.swing.jlabel; import javax.swing.jpanel;  /**  * @see https://stackoverflow.com/a/36714997/230513  */ public class go {      private game game = game.easy;     private final jcombobox gamecombo = new jcombobox();      enum game {          easy(9), fast(13), classic(17), full(19);         private int size;         private string name;          private game(int size) {             this.size = size;             this.name = this.name() + ": " + size + "\u00d7" + size;         }          public int size() {             return this.size;         }          @override         public string tostring() {             return this.name;         }     }      private void display() {         jframe f = new jframe("test");         f.setdefaultcloseoperation(jframe.exit_on_close);         jpanel board = new jpanel() {             @override             public color getbackground() {                 return color.cyan.darker();             }              @override             public dimension getpreferredsize() {                 return new dimension(320, 240);             }         };         board.add(new jlabel(game.tostring()));         f.add(board);         jpanel p = new jpanel();         (game g : game.values()) {             gamecombo.additem(g);         }         gamecombo.addactionlistener(new actionlistener() {             @override             public void actionperformed(actionevent e) {                 game = (game) gamecombo.getselecteditem();                 board.removeall();                 board.add(new jlabel(game.tostring()));                 board.validate();                 board.repaint();             }         });         p.add(new jbutton("start"));         p.add(gamecombo, borderlayout.south);         f.add(p, borderlayout.south);         f.pack();         f.setlocationrelativeto(null);         f.setvisible(true);     }      public static void main(string[] args) {         eventqueue.invokelater(new go()::display);     } }