access each key and value in a hashmap java
// access each key and corresponding value in a hashmap
HashMap<Integer, Integer> map = new HashMap<>();
for(Map.Entry<Integer, Integer> entry : map.entrySet()){
entry.getKey();
entry.getValue();
}access each key and value in a hashmap java
// access each key and corresponding value in a hashmap
HashMap<Integer, Integer> map = new HashMap<>();
for(Map.Entry<Integer, Integer> entry : map.entrySet()){
entry.getKey();
entry.getValue();
}java map get the key from value
public static <T, E> Set<T> getKeyByValue(Map<T, E> map, E value) {
return map.entrySet()
.stream()
.filter(entry -> Objects.equals(entry.getValue(), value))
.map(Map.Entry::getKey)
.collect(Collectors.toSet());
}Copyright © 2021 Codeinu
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