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package ro.virtualcampus.set; | |
import java.util.ArrayList; | |
import java.util.Arrays; | |
import java.util.HashSet; | |
import java.util.List; | |
import java.util.TreeSet; | |
public class AppTreeSet { | |
public static void main(String[] args) { | |
HashSet<String> multime1 = new HashSet<String>(); | |
multime1.add("Iulian"); | |
multime1.add("Corina"); | |
multime1.add("Ghita"); | |
multime1.add("Silviu"); | |
System.out.printf("multime nume %s %n", multime1); | |
TreeSet<String> multime2 = new TreeSet<String>(multime1); | |
System.out.printf("multime nume dupa ordonare %s %n", multime2); | |
System.out.printf("numarul de elemente din multimea %s este %d %n", | |
multime2, multime2.size()); | |
System.out.printf("numele %s este prezent in multimea %s: %b %n", | |
"Iulian", multime2, multime2.contains("Iulian")); | |
System.out.printf("multime nume ordonata descrescator %s %n", | |
new TreeSet<String>(multime1).descendingSet()); | |
List<String> lista = new ArrayList<String>(multime2); | |
System.out.printf("lista nume %s obtinute dupa conversia multimii %s %n", | |
lista, multime2); | |
Object[] tablou1 = multime2.toArray(); | |
System.out.printf("tablou nume %s obtinut din multimea %s %n", | |
Arrays.toString(tablou1), multime2); | |
Object[] tablou2 = lista.toArray(); | |
System.out.printf("tablou nume %s obtinut din lista %s %n", | |
Arrays.toString(tablou2), lista); | |
} | |
} |
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