hashmap print key and value code example

Example 1: print map java

map.forEach((key, value) -> System.out.println(key + ":" + value));

Example 2: print map in java

Map<String, Integer> map = new HashMap<>();
map.put("a", 1);
map.put("b", 2);
System.out.println(Arrays.asList(map)); // method 1
System.out.println(Collections.singletonList(map)); // method 2