java how to make set
//Creating HashSet HashSet<String> set = new HashSet(); //adding elements set.add("One"); set.add("Two"); //Removing element); set.remove("One"); //Removing all the elements available in the set set.clear();
java how to make set
//Creating HashSet HashSet<String> set = new HashSet(); //adding elements set.add("One"); set.add("Two"); //Removing element); set.remove("One"); //Removing all the elements available in the set set.clear();
java set example
import java.util.*; public class SetDemo { public static void main(String args[]) { int count[] = {34, 22,10,60,30,22}; Set<Integer> set = new HashSet<Integer>(); try { for(int i = 0; i < 5; i++) { set.add(count[i]); } System.out.println(set); TreeSet sortedSet = new TreeSet<Integer>(set); System.out.println("The sorted list is:"); System.out.println(sortedSet); System.out.println("The First element of the set is: "+ (Integer)sortedSet.first()); System.out.println("The last element of the set is: "+ (Integer)sortedSet.last()); } catch(Exception e) {} } }
how to check how many elements in a set java
import java.util.Arrays; import java.util.HashSet; import java.util.Set; /* check a set size by set.size() */ public class MainClass { public static void main(String[] a) { String elements[] = { "A", "B", "C", "D", "E" }; Set set = new HashSet(Arrays.asList(elements)); System.out.println(set.size()); } }
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