How to convert a HashMap to an ArrayList?

1.	How to convert a HashMap to an ArrayList?
Answer» Convert Map Keys To List Map<STRING, INTEGER> map = new HashMap<String, Integer>(); map.put(“Apple”, 1 ) ; map.put(“Orange”, 2 ) ; map.put(“Guava”, 3 ) ; map.put(“POTATO”, 4 ) ; List<String> listKeys = map.keySet().stream().collect(Collectors.toList()); listOfKeys.forEach(System.out::println); Convert Map VALUES To List Map<String, Integer> map = new HashMap<String, Integer>(); map.put(“Apple”, 1 ) ; map.put(“Orange”, 2 ) ; map.put(“Guava”, 3 ) ; map.put(“Potato”, 4 ) ; List<Integer> listOfValues = map.values().stream().collect(Collectors.toList()); listOfValues.forEach(System.out::println);

Answer»

Convert Map Keys To List

Map<STRING, INTEGER> map = new HashMap<String, Integer>(); map.put(“Apple”, 1 ) ; map.put(“Orange”, 2 ) ; map.put(“Guava”, 3 ) ; map.put(“POTATO”, 4 ) ; List<String> listKeys = map.keySet().stream().collect(Collectors.toList()); listOfKeys.forEach(System.out::println);

Convert Map VALUES To List

Map<String, Integer> map = new HashMap<String, Integer>(); map.put(“Apple”, 1 ) ; map.put(“Orange”, 2 ) ; map.put(“Guava”, 3 ) ; map.put(“Potato”, 4 ) ; List<Integer> listOfValues = map.values().stream().collect(Collectors.toList()); listOfValues.forEach(System.out::println);

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