Find the error in Java

Find the error in the following programs: 1. List nametist - new LinkedHashSet(); 2. List namelist = new ArrayList(); ListIterator it = new ListIterator (namelist); 3. Set nameSet = new HashSet0; nameSet.add("Chris"); nameset.add("Kenny"); ListIterator it = name5et.listIterator(); 4. List namelist = new ArrayList(); ListIterator it = new ListIterator (namelist); it.set("Herbert")