Setnames = new HashSet<>(); names.add("John"); names.add("Mary"); names.add("David"); Iterator iterator = names.iterator(); while(iterator.hasNext()) { String name = iterator.next(); System.out.println(name); }
SetIn this code, a TreeSet of numbers is created and an iterator is used to iterate over the elements. When the number 20 is encountered, the remove() method is called on the iterator to remove it from the set. Package Library: The Set and Iterator interfaces are part of the Java Collections Framework, which is included in the java.util package.numbers = new TreeSet<>(); numbers.add(10); numbers.add(20); numbers.add(30); Iterator iterator = numbers.iterator(); while(iterator.hasNext()) { int number = iterator.next(); if(number == 20) { iterator.remove(); } } System.out.println(numbers);