Get TreeMap Size : TreeMap « Collections « Java Tutorial

import java.util.TreeMap;

public class Main {
  public static void main(String[] args) {
    TreeMap<String, String> treeMap = new TreeMap<String, String>();
    System.out.println("Size of TreeMap : " + treeMap.size());

    treeMap.put("1", "One");
    treeMap.put("2", "Two");
    treeMap.put("3", "Three");

    System.out.println("Size of TreeMap after addition : " + treeMap.size());
    System.out.println("Size of TreeMap after removal : " + treeMap.size());



9.29.1.TreeMap Class
9.29.2.Viewing Sub Maps
9.29.3.Working with End Points
9.29.4.Get Synchronized Map from TreeMap
9.29.5.Check if a particular key exists in TreeMap
9.29.6.Check if a particular value exists in TreeMap
9.29.7.Get Head Map from TreeMap
9.29.8.Get lowest and highest key stored in TreeMap
9.29.9.Get Set view of Keys from TreeMap
9.29.10.Get TreeMap Size
9.29.11.Get Sub Map from TreeMap
9.29.12.Get Tail Map from TreeMap
9.29.13.Iterate through the values of TreeMap
9.29.14.Remove all values from TreeMap
9.29.15.Remove value from TreeMap
9.29.17.Cache Map