treeset in java

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showing results for - "treeset in java"
Emiliano
30 May 2017
1import java.util.Iterator;
2import java.util.TreeSet;
3public class TreeSetIteratorMethodExample
4{
5   public static void main(String[] args)
6   {
7      TreeSet<Integer> ts = new TreeSet<Integer>();
8      ts.add(23);
9      ts.add(52);
10      ts.add(63);
11      ts.add(21);
12      // create ascending iterator
13      Iterator<Integer> iterate = ts.iterator();
14      // print TreeSet
15      System.out.println("TreeSet in ascending order: ");
16      while(iterate.hasNext())
17      {
18         System.out.println(iterate.next() + " ");
19      }
20   }
21}
Aya
10 Feb 2016
1package MyPackage;
2  
3public class Tree { 
4    static class Node {    
5    int value; 
6        Node left, right; 
7          
8        Node(int value){ 
9            this.value = value; 
10            left = null; 
11            right = null; 
12        } 
13    } 
14       
15    public void insert(Node node, int value) {
16        if (value < node.value) { if (node.left != null) { insert(node.left, value); } else { System.out.println(" Inserted " + value + " to left of " + node.value); node.left = new Node(value); } } else if (value > node.value) {
17          if (node.right != null) {
18            insert(node.right, value);
19          } else {
20            System.out.println("  Inserted " + value + " to right of "
21                + node.value);
22            node.right = new Node(value);
23          }
24        }
25      }
26     public void traverseInOrder(Node node) {
27        if (node != null) {
28            traverseInOrder(node.left);
29            System.out.print(" " + node.value);
30            traverseInOrder(node.right);
31        }
32     }
33     
34     public static void main(String args[]) 
35    { 
36    Tree tree = new Tree();
37                Node root = new Node(5);
38                System.out.println("Binary Tree Example");
39                System.out.println("Building tree with root value " + root.value);
40                tree.insert(root, 2);
41                tree.insert(root, 4);
42                tree.insert(root, 8);
43                tree.insert(root, 6);
44                tree.insert(root, 7);
45                tree.insert(root, 3);
46                tree.insert(root, 9);
47                System.out.println("Traversing tree in order");
48                tree.traverseLevelOrder();
49                
50              }
51}
Mia
11 Jan 2020
1// java treeset example
2import java.util.Iterator;
3import java.util.TreeSet;
4public class TreeSetExamples
5{
6   public static void main(String[] args)
7   {
8      TreeSet<String> ts = new TreeSet<String>();
9      ts.add("red");
10      ts.add("blue");
11      ts.add("green");
12      ts.add("red");
13      Iterator<String> iterate = ts.iterator();
14      while(iterate.hasNext())
15      {
16         System.out.println(iterate.next());
17      }
18   }
19}
François
20 May 2019
1import java.util.*;
2
3// Declare the variable using the interface of the object for flexibility.
4// Non-primative data types only.
5Set<String> movies = new TreeSet<String>();
6
7movies.add(E);
8// TreeSet will be sorted by element.
9// Work with any comparable object.
10
11movies.add("The Shining");
12movies.add("Dawn of the Dead");
13movies.add("Zombieland");
Edoardo
03 Apr 2017
1- TreeSet sorts the order and don't accept null 
Danica
17 Aug 2019
1// extrait de la classe TreeSet
2public class TreeSet extends AbstractSet
3        implements SortedSet, Cloneable, java.io.Serializable {
4  //...
5  public TreeSet() {
6    this(new TreeMap());
7  }
8  //...
9}
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