Nesting of Java 18-9 HashMap and ArrayList 3

ArrayList collection nested HashMap set merge traversal.
Demand:
Assume that the elements of the ArrayList collection are hashmap. There are 3 of them.
The keys and values of each HashMap collection are strings.
The elements are as follows, please traverse.
Results:
Zhou Yu---little Joe
Bu---marten cicada

Guo Jing---huang Rong
Yang---little dragon girl.

Make the FOX flush---
林平 's---Keilingshan

1  PackageZl_mapdemo;2 3 Importjava.util.ArrayList;4 ImportJava.util.HashMap;5 ImportJava.util.Set;6  Public classMapandhashmap {7 8      Public Static voidMain (string[] args) {9         Ten         //Create a total collection first ArrayList OneArrayList <HashMap> list =NewArrayList <HashMap>(); A          -         //Create the first collection element -Hashmap<string,string> HM1 =NewHashmap<string,string>(); the          -         //add elements to this collection -Hm1.put ("Zhou Yu", "Little Joe")); -Hm1.put ("Lv bu", "Marten Cicada"); +          -          +         //Create a second collection element AHashmap<string,string> HM2 =NewHashmap<string,string>(); at          -         //add elements to this collection -Hm2.put ("Guo Jing", "Huang Rong"); -Hm2.put ("Yang", "Little Dragon Girl")); -          -         //Create a third collection element inHashmap<string,string> hm3 =NewHashmap<string,string>(); -          to         //add elements to this collection +Hm3.put ("Make Fox Chong", "Ren Ying"); -Hm3.put ("林平", "Keilingshan"); the          *         //Add the above 3 small collections to the total collection $ List.add (HM1);Panax Notoginseng List.add (HM2); - List.add (HM3); the          +         //traversal of the total collection A          for(hashmap<string,string>listkey:list) { the             //iterate over subsets of HashMap collections +             //Get Key Collection -Set <String> HashSet =Listkey.keyset (); $             //traversing the HashSet collection $              for(String hashkey:hashset) { -                 //Get Value -String result =Listkey.get (hashkey); theSystem.out.println (hashkey+ "\ T" +result); -             }Wuyi              the         } -     } Wu  -}

Nesting of Java 18-9 HashMap and ArrayList 3