The method named orderOfAppearance() that takes the name of a role as an argument is; Written as below
The steps to write this Java program is as follows;
let movie = {
 name: "Forrest Gump",
 director: "Robert Zemeckis",
 composer: "Alan Silvestri",
 title: {
   "Forrest Gump",
   "Young Forrest Gump"
   "Jenny Curran" Â
    "Lieutenant Dan Taylor"      Â
 },
 orderOfAppearance: function (role) {
   if (typeof (this.title[role]) !== 'undefined') {
     return this.title[role];
   } else {
     return "0";
   }
 }
};
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