Java get list of keys Hashmap
List<String> l = new ArrayList<String>(map.keySet());
Java get list of keys Hashmap
List<String> l = new ArrayList<String>(map.keySet());
JAVA HashMap get keys by values
Map<String, String> map = new HashMap<String, String>();
map.put("abc", "123");
map.put("xyz", "456");
for(Entry<String, String> entry : map.entrySet()) {
if(entry.getValue().equalsIgnoreCase("456")) {
System.out.println(entry.getKey());
}
}
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