java - Get same field from different objects -

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i want generic method in java receives object , same property no matter type of object is.

for instance: have 2 objects, car , house , know these objects have attribute id. can write such method ?

public void method(object x) {   x.getid(); }

you cannot unless use of reflection, pretty exception-prone.

public void method(object o) throws nosuchfieldexception, securityexception {   field idfield = o.getclass().getdeclaredfield("id");   int id = idfield.getint(o); }

but common way solve such operation using polymorphism or generic method interface.

public interface identifiable {   public int getid(); }  public <t extends identifiable> void method(t anidentifiableobject) {   anidentifiableobject.getid(); }   public void method(identifiable anidentifiableobject) {   anidentifiableobject.getid(); }

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