Recent Posts
-
12-02 Java string class
String construction method Characteristics of string: once assigned, it cannot be changed. But references can change I…… -
10-02 in depth study of Java formal parameters and return values, chain programming
Problems with formal parameters and return values: Class name as formal parameter Abstract class name as formal parame…… -
13-03 java basic type wrapper class overview, integer class, character
Overview of basic types and packaging classes The advantage of encapsulating basic data types as objects is that more …… -
10-05 overview and explanation of Java internal classes
Overview of internal classes Internal class location How to directly access members of a class inside a member Modifie…… -
12-01 line breaks caused by nextline() in Java scanner class
分析理解：Scanner sc = new Scanner(system.in); Hasnextint() and nextint() methods of the scanner class import java. u…… -
06-02 Java value transfer and data encryption
Value transfer: Java basic type value transfer, reference type value transfer memory diagram: data encryption -
03-03 Java sequential statement structure, select if statement structure
Sequential structure: If statement If statement considerations The difference between ternary operation and if stateme…… -
08-03 Java inheritance
Inheritance format, advantages and disadvantages, overview: Inherited features in Java: Pay attention to the implement…… -
06-03 overview of java object-oriented idea, development and design features, definition and use of classes and objects, object memory diagram
Overview of object-oriented thought, development and design characteristics Overview of classes and objects Class defi…… -
14-01 Java matches class, pattern class, matcher class
Pattern class Common rules for regular expressions Common functions of regular expressions A: Public Boolean matches (…… -
06-01 Java 2D array format, 2D array memory diagram, 2D array operation
2D array format 1 Format 1 memory diagram: 2D array format 2 Two dimensional array format 2 memory diagram: -
09-02 Java polymorphism
The premise and characteristics of polymorphism Benefits of polymorphism: Disadvantages of polymorphism Solving the di…… -
01-02 Notepad + + installation, configuration and use
1、 Installation According to the default settings, go to the next step. 2、 Disposition Set -- > preferences -- &g…… -
05-01 Java method
method Method definition and format: Method call diagram: Enter two data on the keyboard and compare whether the two n…… -
03-01 Java operator
(1)算术运算符 /Difference between% and%: ++, -- use of operators; Priority of operator: +Usage of: (2) Assignment oper…… -
The most complete java learning roadmap — java learning guide
Preparation Applicable / suitable for people: suitable for basic Xiaobai Objective: to master Java se. ● technical poi…… -
Sorting out the knowledge of Java Web Architecture — an interview with ALI
"The best time for you to learn a technology is three years ago, followed by now." That never worked. After this inter…… -
Pointcut is not well-formed: expecting ‘identifier’ at character position 0
The exceptions are as follows: org. springframework. beans. factory. BeanCreationException: Error creating bean with n…… -
Usage of substring in Java
substring 1.public String substring(int beginIndex)。 Returns a new string, which is a substring of this string. The s…… -
Java SQL injection learning notes
< H1 id = "0x01 - Introduction" > 1 Introduction The main contents of the article include: JDBC: full name: Java…… -
Introduction to SSM framework and integration tutorial
1.Spring Spring framework is the most widely used framework in Java. Its success comes from the concept rather than th…… -
Paging implementation method
Method 1: the definition of foreground page displays easy UI in pages Every time a page operation or query requests cu…… -
The difference between Preparedstatement and statement
The difference between Preparedstatement and statement 1. Preparedstatement is precompiled, which can greatly improve …… -
Java learning roadmap (how to learn java quickly)
Unknowingly, it has been 8 years since I first learned Java. Today I'm here to give some suggestions to my friends…… -
Export selected behavior excle
What you want to achieve is to export the selected row. For example, check these two items Export as My front desk is …… -
Java Engineer book list (elementary, intermediate, advanced)
brief introduction How to learn to grow from a Java junior programmer to a qualified architect, or what kind of techni…… -
Java exception class structure diagram
< img style="background: #ffffff none repeat scroll 0% 0%;" src="%20http://img.blog.csdn.net/20151023200049836…… -
Java 11 is officially released. These new features teach you to write more awesome code
Today, let's take a look at what Java 11 is, what's special about it, and whether to upgrade to Java 11. What's specia…… -
Write a learning roadmap for your own Java programmers
The following are some technologies and tools that I have often used in development in recent years. Of course, these …… -
The difference between Java abstract classes and interfaces
Abstract class features: 1 Methods can be constructed in abstract classes Abstract classes can have ordinary propertie……