How to map values in a map in Java 8?
dictionary, java, java-8, lambda
Solution
You need to stream the entries and collect them in a new map:
Map<String, String> result = map.entrySet()
.stream()
.collect(Collectors.toMap(Entry::getKey, e -> String.valueOf(e.getValue()));
Problem
Say I have a `Map<String, Integer>`. Is there an easy way to get a `Map<String, String>` from it? By easy, I mean not like this: ``` Map<String, String> mapped = new HashMap<>(); for(String key : originalMap.keySet()) { mapped.put(key, originalMap.get(key).toString()); } ``` But rather some one liner like: ``` Map<String, String> mapped = originalMap.mapValues(v -> v.toString()); ``` But obviously there is no method `mapValues`.