implement hashmap in java interview

over manually constructed equals () and Hashcode () methods (or Those Awful Monsters Eclipse would generate for your), but the guava versions is even Better.And a note about Hibernate:Be careful is about using the lazy collections in your equals (), hashcode () and toString () implementations. that'll fail miserably If you don't have an open Session.Note (about equals ()):A) in both versions of equals () above, you might want to use one or both of these shortcuts also:@Overridepublic boolean eq

;} public int getage () {return this.age;} Public String toString () {return this.name + "," +age;}} Class Demo16 {public static void main (string[] args) {//Guaranteed key only principle, first infer whether the hash value is the same, again infer equals () hashmapCode Listing 2:Package Stu.love.v;/*treemap:hashmap guarantee Key only principle and HashSet same TREEMAP guarantee key only principle and TreeSet same */import Java.util.*;class Student1{private string Name;public string GetName () {

Hashtable and HashMap P190Third, iterator iteratorAll the collection interfaces and classes do not provide a corresponding traversal method, but rather the collection traversal is implemented by iteratorThe iterate () method of the Collection interface returns a iterator, which is then implemented by the two methods of the iterator interface.Traverse1.boolean Hasnext (): Determine if there is another accessible element2.Object Next (): Returns the ne