java - error message with JButton and JFileChooser -


i want have button jfilechooser action. code wrote:

public class main {  private static string fullpath; private jfilechooser inputfile;  public static void main(string args[]) throws filenotfoundexception, ioexception {     try {          gridbagconstraints gbc = new gridbagconstraints();          jbutton inputbutton = new jbutton("browse input file");          mypanel.add(inputbutton, gbc);          inputbutton.addactionlistener(new actionlistener() {         public void actionperformed(actionevent e) {         jfilechooser inputfile = new jfilechooser();         inputfile.setfileselectionmode(jfilechooser.files_and_directories);          file file1 = inputfile.getselectedfile();         string fullpathtemp = (string) file1.getabsolutepath();         fullpath = fullpathtemp;             }                 public void actionperformed(actionevent e) {                 throw new unsupportedoperationexception("not supported yet."); //to change body of generated methods, choose tools | templates.             }         });   } catch (exception e) {         system.err.println("error: " + e.getmessage());     } {     } } }

but problem when run it, got long error message part of:

exception in thread "awt-eventqueue-0" java.lang.unsupportedoperationexception: not     supported yet. @ main.main$1.actionperformed(main.java:200) @ javax.swing.abstractbutton.fireactionperformed(abstractbutton.java:2018) @ javax.swing.abstractbutton$handler.actionperformed(abstractbutton.java:2341) @ javax.swing.defaultbuttonmodel.fireactionperformed(defaultbuttonmodel.java:402)

the actionlistener here explicitly throwing unsupportedoperationexception. move jfilechooser functionality actionlistener:

input_button.addactionlistener(new actionlistener() {     public void actionperformed(actionevent e) {         jfilechooser inputfile = new jfilechooser();         inputfile.setfileselectionmode(jfilechooser.files_and_directories);         if (inputfile.showopendialog(myframe) == jfilechooser.approve_option) {             file file1 = inputfile.getselectedfile();             string fullpathtemp = (string) file1.getabsolutepath();             ...         }     } });

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