20172333 2017-2018-2 "Java Programming" 8th Week study SummaryTextbook Learning Content
Polymorphic applications can point to different types of objects over time.
For polymorphism applications, the method's reference is executed at run time with the binding of the method's definition code.
Reference variables can specify any object of any class that has an inheritance relationship.
The type of the calling method actually depends
20172330 2017-2018-1 "Java program design" Fifth week study summary textbook study content summary fifth chapter
The first is the understanding of the various operators: just beginning to think that equality is =, there are some other symbols are quite simple, and then in the further learning to know the "= =" and "! = "are all equal operators, and"! "," "," | | " Represent non, with, or.Problems in teaching materials learning and the solving pro
20172330 2017-2018-1 "Java Program design" Fourth week study summary textbook study summaryThis week's content is more and more complex, including chapters fourth and seventh.
The fourth chapter introduces the definition and concept of class structure, and gives us a lot of examples to show the method and application of the custom class, and discusses the structure and use of the method definition: Including return statement, parameter, local
20165115 2017-2018-2 "Java program design" Fifth week study summary textbook study summaryThe seventh part of the study is the inner class and the exception class. Among them, the exception class has a great effect on solving the error condition. Especially in the actual operation of some large programs, if you do not do boundary detection, so that the program to respond to possible error conditions, it is likely to lead to the actual operation of a v
The fifth week of Java Programming Study summary 20165218 2017-2018-2 Textbook Study Contents 7th Chapter Inner class and exception class inner class
Defining another class in a class, outer-nested and inner classes
Inner classes can use member variables and methods in an outer-nested class
Inner classes cannot declare class variables and class methods
For use only with outer-nested classes
Exception class
Try-catch
20172333 2016-2017-2 "Java Program Design" 3rd week Study summary Textbook study summaryThe 1.String class, the random class, the math class, the NumberFormat class and the DecimalFormat class, the enumeration type, and the wrapper class.Problems in code debugging and the resolution process
Question 1: The first three numbers appear in the process of writing about pp3.3.
Problem 1 Solution: tinkering for a while, and finally to ask Zhangx
20165312 2017-2018-2 "Java program Design" 7th Week study Summary of the last week to test the leakage of the vacancy
Overall, I think last week two tests are very difficult, do the test also took a long time, I think because the knowledge of the book a lot, I have not understood well, so still want to read more well, a lot of books on the knowledge points omitted or read once forgotten.
Week five test (ch08 ch10)
The following sta
20165218 2017-2018-1 "Java Programming" 7th Week study summary textbook Learning content summary jdbc and MySQL database
Database functions: Data storage, query, modification, security
MySQL: Database; JDBC: API for manipulating databases
APIs (application Programming Interface, application programming interfaces) are pre-defined functions designed to provide the ability of applications and developers to access a set of rou
20165230 2017-2018-2 "Java program Design" 7th Week study Summary Textbook Learning contents Summary 11th Chapter JDBC and MySQL Database
This week learned how to use the APIs and databases provided by the JDBC language in Java programs to interact with information
Learned the MySQL database management system
Use Connection getConnection(java.lang.String) the method to make the application connect to the database:DriverManager.getConn
20165209 2017-2018-2 "Java program Design" 7th Week Study summary Textbook study summary
Install the EAMPP and complete the configuration
EAMPP Connection Database
Create a database
Learn to query operations
Problems in teaching materials learning and the solving process
Issue 1: The following error occurred while initializing MySQL
mysqld: Could not create or access the registry key needed for the MySQL applica
20165202 2017-2018-2 "Java Programming" 8th Week study summarySummary of learning contents of textbookCh12
Processes and Threads
A thread is a smaller unit than a process, and a process can produce multiple threads during its execution
Threads in Java
Main threadEach Java application has a default main thread. When the JVM loads code and discovers the Main method, it starts a thread called the main thread, whic
20165219 2017-2018-2 "Java Program Design" 8th Week study summary Textbook learning content summary process and threadsA thread is a smaller unit than a process, and some memory units in a process can be shared between threadsJava's multi-line mechanism thread class and thread creationOne way to create a thread is to Thread create the thread object directly with the classUsing Runnable interfaces is Thread more flexible than using subclassesThread syn
20165208 2017-2018-2 "Java program design" Eighth Week study summary textbook Learning content Summary Chapter 12th thread State
To create a thread object
Created directly with the thread class or subclass: Thread(Runnable target) creates a thread, gets the current thread object, and getName() returns the name of the thread.
Use the Runnable interface: more flexible than thread
Runrun()Method stipulates speci
20165111 2017-2018-2 "Java program design" the first week to summarize the learning content of learning materialsThis chapter is mainly about the Java language and the preparatory knowledge of Java learning.
Features of Java
Simple
Object oriented
Platform-Independent
Multithreading
Dynamic
A simple Java application
Write
Compile
javac XX.java #这里的XX所指的类必须是公开类#
Name: Danny Date:2017/12/2
task date
lectures
Programming program
Read the textbook
prepare for exam
exam
daily statistics
Sunday
Monday
30
NBSP;
120
150
Tuesday
140
Visual Studio for Mac 2017 preview has been released and can be downloaded, address:http://www.visualstudio.com/vs/visual-studio-mac/After downloading to get a 22M online installation package, you can wait for the online installation, if the slow speed can download the corresponding independent installation package, I only installed the following two packages1. Visual Studio for Mac2. Mono FrameworkThe total is about 1G, the installation is complete,
2017-2018-2 20155225 "Network countermeasure Technology" Experiment Nine Web Security Foundation webgoat1.string SQL InjectionThe topic is to find a way to get the database owner's credit card number, with Smith login, get Smith's two credit card number,But how do you get credit card numbers for everyone?Only the input ‘ or 1 = ‘ 1 is required so that the construction can close the quotation marks and then the or on a permanent, it can block out the p
Under Introduction:Complements the day is the domestic well-known vulnerability response platform, aims at enterprise and white hat to win together.White hat here to submit vendor loopholes, to obtain the library currency and honor, vendors from here to publish the audience, get vulnerability reports and repair recommendations.Before March 2017, the vendor domain URL is very good crawl, even if not landing to the platform can still easily get to the b
2017-2018-2 20155228 "Network countermeasure Technology" experiment Eight: Web Foundation 1. Practice Content 1.1 Web front-end HTMLCan install normally, start and stop Apache. Understand the HTML, understand the form, understand the get and post methods, and write an HTML containing the form.1.2 Web front End JavasciptUnderstand the basic JavaScript functionality and understand the DOM. Write JavaScript to verify the user name, password rules.1.3 Web
Feedback on issues with the 2017 object-oriented Programming (JAVA) section on nine-week learning summary1. Blog not written by: Gao Shuping Gao Junmei Fong Mau Wang Ruiqiang Zong Peng Li Xianglong Ma Lun Mitch Mao Provencale--The number of students who do not submit the blog in time is on the rise, please think about the value of Java Learning Blog, and some of the students have not achieved the learning value of the blog, also please this part of th
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