Question

How to iterate map in java?

Answer 1

How to iterate map in java?

import java.util.Map;

import java.util.HashMap;

  

class IterationDemo  

{

    public static void main(String[] arg)

    {

        Map<String,String> m = new HashMap<String,String>();

      

        // enter name/url pair

        m.put(""a"", 1);

        m.put(""b"", 2);

        m.put(""c"", 3);

        m.put(""d"", 4);

          

        // using for-each loop for iteration over Map.entrySet()

        for (Map.Entry<String,String> entry : m.entrySet())  

            System.out.println(""Key = "" + entry.getKey() +

                             "", Value = "" + entry.getValue());

    }

}