Map Reverse or Key and map swap

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;

public class mapSwap {
public static void main(String[] args) {
Map<Integer, String> map = new HashMap<Integer, String>();
Map<String, Integer> revMap = new HashMap<String, Integer>();

map.put(1, "value");
map.put(2, "value2");

Iterator<Entry<Integer, String>> iterator = map.entrySet().iterator();
while (iterator.hasNext()) {
Entry<Integer, String> entry = iterator.next();
System.out.println(entry.getKey() + "---" + entry.getValue());
revMap.put(entry.getValue(), entry.getKey());
}
Iterator<Entry<String, Integer>> revIterator = revMap.entrySet().iterator();
while (revIterator.hasNext()) {
Entry<String, Integer>entry1 =revIterator.next();
System.out.println(entry1.getKey()+"---"+entry1.getValue());
}
}