HashMap Compare > Java

import java.util.HashMap;
import java.util.Map;


public class HASMAPCompare {

	public static void main(String[] args) {
		final Map<String, String> hm1 = new HashMap<String, String>();
		hm1.put("01", "Bala");
		hm1.put("02", "Sha");
		hm1.put("03", "Sha");

		final Map<String, String> hm2 = new HashMap<String, String>();
		hm2.put("01", "Bala");
		hm2.put("02", "Sha0");

		final Map<String, String> hm3 = new HashMap<String, String>();

		for (final String key : hm1.keySet()) {
		    if (hm2.containsValue(hm1.get(key))) {
		        hm3.put(hm1.get(key), hm2.get(key));
		    }
		}
		
		System.out.println(hm3.size());
		
	}

}