java - how can I convert an Object to a string? -

i want take list user's choice , convert string jbox. how can convert contents string can use it?

public class graph extends jframe {     private string temp;      public graph()     { }     public void createbox(string[] a)     {         jframe frame = new jframe();         frame.setdefaultcloseoperation(jframe.exit_on_close);         jbutton jbutton1 = new jbutton("ok");         final jlist jlist1 = new jlist(a);         jbutton1.addactionlistener(new java.awt.event.actionlistener()          {             public void actionperformed(actionevent e)              {                 object contents = jlist1.getselectedvalue();                 //system.out.println(contents);                 setchoise((string)contents);//how can convert string ?             }         });         jbutton jbutton2 = new jbutton("close");         jbutton2.addactionlistener(new actionlistener()          {             public void actionperformed(actionevent e)             {                 system.exit(0);             }         });             frame.add(jlist1, "center");         frame.add(jbutton1,"south");         frame.add(jbutton2,"north");         frame.setsize(300, 200);         frame.setvisible(true);     }     public void setchoise(string temp)     {         this.temp=temp;     }      public string getchoise()     {         return this.temp;     } } 

i going different , explain solution not 1 proposed of converting object string. rather declare jlist proper use (which seems hold strings). declare list

final jlist<string> jlist1 = new jlist<string>(a); 

and getselectedvalue() method return string not raw object allowing use in methods take in string.

however people have noted, not work if need manipulate list objects, if using list strings