IDEA+Java console to realize pet management system [recommended collection]

catalogue 1, System introduction 1. Development environment 2. Technical selection 3. System functions 4. Access to resources 2, System display   1. Log in to the system 2. Query pet information 3. Add pet information 4. Update pet information 5. Delete pet information 3, Partial code BusinessService LoginService   4, O ...

Posted by akforce on Sun, 21 Nov 2021 06:59:44 +0100

ArrayList source code analysis

10.15 analysis of ArrayList collection source code The code used for the test is as follows public static void main(String[] args) { List list = new ArrayList(); for (int i = 0; i < 10; i++) { list.add(i); } list.add(20); list.add(30); list.add(40); } First, create an ...

Posted by Judas on Sat, 16 Oct 2021 10:35:35 +0200