Question

How to Iterate through the values of TreeMap in Java

Answer 1

package javaapplication1;

import java.util.Collection;
import java.util.Iterator;
import java.util.TreeMap;

public class JavaApplication1 {

    public static void main(String[] args) {

        TreeMap treeMap = new TreeMap();
        
        treeMap.put("1", "Java");
        treeMap.put("2", "C");
        treeMap.put("3", "C++");
        treeMap.put("4", "C#");
        treeMap.put("5", "PHP");
        treeMap.put("6", "JavaScript");
        treeMap.put("7", "Python");

        Collection c = treeMap.values();
   
        Iterator itr = c.iterator();
   
        while (itr.hasNext())
            System.out.println(itr.next());
    }
}
 
/*

run:

Java
C
C++
C#
PHP
Python

*/

 

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