Bosses, please what is the meaning of this sentence, what is the role

CodePudding user response:

Declare a List a collection of objects, the List is a generic class,

CodePudding user response:

Declare a collection called allapplist value of the type of this collection only Userappinfo inside
Such as Userappinfo info=new Userappinfo ();
Allapplist. Add (info); Not allapplist. Add (" item ") and so on