Answers for "java map get if present"

check if map contains key java

if (map.containsKey(key)) {
       // Okay, there's a key but the value is null
    } else {
       // Definitely no such key
    }

Posted by: Guest on March-04-2020

java map get if contains else 0

map.put(c, map.getOrDefault(c, 0) + 1);

Posted by: Guest on January-21-2021

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