Updating the value of an existing key using put() put(“from”, 67); // Update the value of key “from” to 67, it will return the old value. Integer oldValue = mapOfWords. put(“from”, 67);
How do you change a map key in Java?
Updating the value of an existing key using put() put(“from”, 67); // Update the value of key “from” to 67, it will return the old value. Integer oldValue = mapOfWords. put(“from”, 67);