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Iterate through the values of TreeMap in Java
Use Iterator and the values() method to iterate through the values of TreeMap.
Let us first create a TreeMap and add some elements −
TreeMap<Integer,String> m = new TreeMap<Integer,String>(); m.put(1,"PHP"); m.put(2,"jQuery"); m.put(3,"JavaScript"); m.put(4,"Ruby"); m.put(5,"Java"); m.put(6,"AngularJS"); m.put(7,"ExpressJS");
Iterate through the values −
Collection res = m.values(); Iterator i = res.iterator(); while (i.hasNext()) { System.out.println(i.next()); }
The following is the complete example to iterate through the values −
Example
import java.util.*; public class Demo { public static void main(String args[]) { TreeMap<Integer,String> m = new TreeMap<Integer,String>(); m.put(1,"PHP"); m.put(2,"jQuery"); m.put(3,"JavaScript"); m.put(4,"Ruby"); m.put(5,"Java"); m.put(6,"AngularJS"); m.put(7,"ExpressJS"); System.out.println("TreeMap Elements..."); Collection res = m.values(); Iterator i = res.iterator(); while (i.hasNext()) { System.out.println(i.next()); } } }
Output
TreeMap Elements... PHP jQuery JavaScript Ruby Java AngularJS ExpressJS
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