read hash map java code example

Example 1: iterate hashmap java

public static void printMap(Map mp) {
    Iterator it = mp.entrySet().iterator();
    while (it.hasNext()) {
        Map.Entry pair = (Map.Entry)it.next();
        System.out.println(pair.getKey() + " = " + pair.getValue());
        it.remove(); // avoids a ConcurrentModificationException
    }
}

Example 2: hashmap get value java

//Import Hashmap
import java.util.HashMap;
   
    HashMap<String, String> dir = new HashMap<String, String>();
//Add key, values  
    dir.put("hi", "hello");
	dir.put("wow", "amazing");
//print value for hi.
    System.out.println(dir.get("hi");