java - Best way to initialize three dimension List -

is there better way allows me initialize three-dimensional arraylist?

list<list<list<string>>> lista = new arraylist<list<list<string>>>(3);   (int i=0;i<3;i++){       list<list<string>> lista2 = new arraylist<list<string>>(4);       (int j=0;j<4;j++)lista2.add(new arraylist<string>(5));     lista.add(lista2); } 

without external libraries or introducing new classes -- can use double brace initialization. bit cleaner having intermediate variables.

public list<list<list<string>>> lista = new arraylist<list<list<string>>>(){{     for(int i=0;i<3;i++)         add(new arraylist<list<string>>(){{             for(int i=0;i<4;i++)                 add(new arraylist<>(5));         }}); }};