Programming VIP

1. About this context in Java package com.jiang.entity; /** * Description: * Author: jiang Administrator * Version: 1.0 * Create Date Time: 2021/11/14 20:07. * Update Date Time: * * @see */ public class UserVo { private String nickname; private Integer age; public void say(){ System.out.println(this.nickname); ...

List of Collection sub interfaces What is the difference between Arraylist and Vector? ArrayList ， is the main implementation class of ， List ， which is stored in ， Object [] at the bottom. It is suitable for frequent search work, and the thread is unsafe;Vector ， is an ancient implementation class of ， List ， which is stored in Object ...

event 1. Introduction We can often see such operations on the website. When we click a button or perform relevant operations on the browser, the page will respond with our operations. Then these operations performed on the browser window or web page through the mouse or button are events. If a piece of program code is bound to an event, as lo ...

catalogue Basic data types that C + + can handle Data in program Integer type Character type (char) Floating Point Types String type (see Chapter 6 for details) Boolean type (bool) Value range of each basic type constant integer constant Floating point constant Variable: an amount whose value is variable during the operation ...

When it comes to Java splitting strings, I guess nine times out of ten you will make a cruel remark, "what's the difficulty? Just go to the split() method of String class!" If you really think so, you should pay attention. Things are far from so simple. Come on, move a small bench and sit down. If there is such a string of chara ...

The following contents are for reference only. If there are errors, please correct them. Design requirements Realize the management of student information, classes, departments and majors; Realize the management of course and student achievement information; Realize the information management of students' rewards and punishments; Create ...

What is OSPF? Open Shortest Path First (OSPF) is an internal gateway protocol based on link state developed by IETF. At present, OSPF Version 2 (RFC2328) is used for IPv4 protocol and OSPF Version 3 (RFC2740) is used for IPv6 protocol. OSPF basic concepts Router ID Router ID must exist if OSPF protocol is to be run. Router ID is a 32-bit uns ...

catalogue 1. Router redistribution and configuration 1.1 route redistribution Redistribute static route and default route in 1.2 OSPF Protocol 2. Virtual link and its configuration 2.1 virtual link overview 2.1 application occasions and functions of virtual link 2.2 virtual link command 2.3 rules and characteristics of configuring vir ...

Review the preliminaries well. I pressed the line Fooling around with the cover 1. Divide candy Generally speaking, T1 is not too difficult. In fact, it is not very difficult I was so stupid that I didn't think of it until half an hour later Cough, look at the data range of 10 ^ 9109, it's not done with violence. If there are n children ...

1. General Code snippets that are well organized and realize a single function or related linkage Programs that do not use functions} programs that use functions Clear structure and simplified code Advantages of functional programming: (1) Modularization of the program not only reduces redundant code, but also makes the program structure ...