I have a hashmap with some keys pointing to same values. I want to find all the values that are equal and print the corresponding keys.
This is the current code that I have:
Map<String, String> map = new HashMap<>();
map.put("hello", "0123");
map.put("hola", "0123");
map.put("kosta", "0123");
map.put("da", "03");
map.put("notda", "013");
map.put("twins2", "01");
map.put("twins22", "01");
List<String> myList = new ArrayList<>();
for (Map.Entry<String, String> entry : map.entrySet()) {
for (Map.Entry<String, String> entry2 : map.entrySet()){
if (entry.getValue().equals(entry2.getValue()))
{
myList.add(entry.getKey());
}
}
}
The current code adds the duplicates two times into the list, however it also adds every key one time.
Thanks.
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