How to implement Mapping Map

This article introduces the relevant knowledge of "how to achieve mapping Map". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Data structure (key,value) for storing (key, value) data pairs

Dictkeyvalue dictionary word interpretation roster ID card number license plate management vehicle database id information word frequency statistics word frequency statistics word frequency public boolean contains (K key) {return getNode (key)! = null;} public V get (K key) {Node node= getNode (key); return node==null?null:node.value;} public void add (K key,V value) {Node node= getNode (key) If (node = = null) {dummyHead.next = new Node (key,value,dummyHead.next); size++;} else {node.value = value;}} public V remove (K key) {Node prev = dummyHead; while (room.nextframes = null) {if (prev.next.key.equals (key)) {break } prev = prev.next;} if {Node delNode = prev.next; prev.next = delNode.next; delNode.next = null; return delNode.value;} return null;} "how to implement mapping Map" ends here. Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!