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- import java.util.*;
- public class Java {
- public static void main(String[] args) {
- System.out.println("Keluarga ku terdiri atas 6 orang : ");
- TreeSet<String> set = new TreeSet<String>();
- set.add("1. Arei Fadila");
- set.add("2. Caroline Seconda");
- set.add("3. Annisa Jasmine Putri Faradila");
- set.add("4. Muhammad Rafi Bahrur Rizki");
- set.add("5. Muhammad Dzaky Bahrul Ilmi");
- set.add("6. Khairin Naila Rabiatul Adawiyah");
- // Tidak bisa di duplikat karena nilainya sudah ada
- set.add("4. Muhammad Rafi Bahrur Rizki");
- Iterator iterator = set.iterator();
- while(iterator.hasNext()) {
- System.out.println(iterator.next());
- }
- System.out.println("\nMuhammad Rafi Bahrur Rizki anak kedua dari 4 bersaudara, apakah benar? " + set.contains("4. Muhammad Rafi Bahrur Rizki"));
- }
- }
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