How to determine if record exist in tableview in javafx -

i have table view add row manually , want know before add row if record add in table.

james_d saying have add @override public boolean equals(object obj) method in class. allow use default list contains() function can in controller code

if(!table.getitems().contains(newobj))    table.getitems().add(newobj); 

here example code:

public void start(stage primarystage) throws exception {         observablelist<myobject> items = fxcollections.observablearraylist(                 new myobject("robert"),                 new myobject("nick"),                 new myobject("john"),                 new myobject("kate"));          tableview<myobject> table = new tableview<>();         table.setitems(items);         tablecolumn<myobject, string> column = new tablecolumn<>("column name");         column.setcellvaluefactory(new propertyvaluefactory<>("name"));         table.getcolumns().addall(column);         table.setitems(items);          textfield textfield = new textfield();         button button = new button("add");         button.setonmouseclicked(event -> {             myobject newobj = new myobject(textfield.gettext());             if(!table.getitems().contains(newobj)){                 table.getitems().addall(newobj);             }         });          vbox root = new vbox();         root.getchildren().addall(table, textfield, button);          primarystage.setscene(new scene(root, 600, 475));         primarystage.show();     }      public static class myobject {         private string name;          public myobject(string name) {             setname(name);         }          @override         public boolean equals(object obj) {             return obj instanceof myobject &&                     ((myobject) obj).name.equals(name);         }          public string getname() {             return name;         }          public void setname(string name) {             this.name = name;         }     } 

and propper way go, if can't change objects class can use or similar helper function.

  public static boolean contains(tableview<myobject> table, myobject obj){         for(myobject item: table.getitems())             if (item.getname().equals(obj.getname()))                 return true;          return false;     }