How does the map react when a new entry is added with an already existing key?
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How does the map react when a new entry is added with an already existing key?
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- If you apply the Visitor design pattern in your design, it becomes easy to add new ConcreteElement classes to the Element hierarchy. Is this true or false?Help with this java question: Map<KeyType, ValueType> mapName = new HashMap<>();(Count entire words, not parts of words. For example rate and rated would be different counts. Say rate is there 10 times and rated is there 5 times, that should be the count not rate 15, rated 5. Don't count parts of words.) A Map is an interface that maps keys to values. The keys are unique and thus, no duplicate keys are allowed. A map can provide three views, which allow the contents of the map to be viewed as a set of keys, collection of values, or set of key-value mappings. In addition, the order of the map is defined as the order in which, the elements of a map are returned during iteration. The Map interface is implemented by different Java classes, including HashMap, HashTable, and TreeMap. Each class provides different functionality and can be either synchronized or not. Also, some implementations prohibit null keys and values, and some have restrictions on the types of their keys. A map has the form Map <k,v> where: K: specifies the type of keys maintained in…
- A map is a container that stores a collection of ordered pairs, each pair consists of a key and a value, <key, value>. Keys must be unique. Values need not be unique, so several keys can map to the same values. The pairs in the map are sorted based on keys. Group of answer choices True FalseCan someone help me with this code, I not really understanding how to do this? import java.util.ArrayList;import java.util.HashMap;import java.util.Map;/*** @version Spring 2019* @author Kyle*/public class MapProblems {/*** Modify and return the given map as follows: if the key "a" has a value, set the key "b" to* have that value, and set the key "a" to have the value "". Basically "b" is confiscating the* value and replacing it with the empty string.** @param map to be edited* @return map*/public Map<String, String> confiscate(Map<String, String> map) {if (map.containsKey("a") && map.containsValue("a")) {}}/*** Modify and return the given map as follows: if the key "duck" has a value, set the key* "goose" to have that same value. In all cases remove the key "swan", the rest of the map* should not change.** @param map to be edited* @return map*/public Map<String, String> mapBird1(Map<String, String> map) {throw new UnsupportedOperationException("Not…please fill 1 to 5 and lable it which one is map move count and all