how to replace values in hashmap java code example

Example 1: change the value in a hashtable java

map.replace(key, newValue);

Example 2: java hashmap replace

Hashmap<String, String> map = new HashMap<>();
map.put("Hello", "you");
map.replace("Hello", "World");
map.get("Hello"); // World

Example 3: java hashmap set value

myMap.put(key, value);