java self study

experiment is a validation experiment, in the further familiar with the Eclipse function, skilled in the need to import the file software, debugging all the volume, the successful operation of the program to obtain the answer, that is, the Eclipse integrated development Environment Import Java source program process, Further familiar with the command line and the IDE Two ways Java program Development Basic

the method before adding the Super keyword.The final keyword definition is used before class, which means that the class is the last one, no more subclasses, and is no longer inherited. When defining a method, it can also be qualified to final, which means that the last method is defined, that is, the subclass can not redefine the final methods.In Java inheritance must inherit the java.lang.Object, simply say any class traced back to the topmost clas

Object-oriented programming ( Java ) "First week of study summaryPart I: Course preparation sectionPart II: Theoretical Knowledge Learning SectionChapter III Java BASIC program design structure1. Basic knowledge(1) IdentifiersIdentifiers consist of letters, underscores, dollar signs, and numbers, and the first symbol cannot be a number.(2) KeywordsKeywords are so

Part I: Course preparation sectionFill out the course study Platform Registration account, Platform Name Registered Account Blog Park: www.cnblogs.com Adrian, everybody. Program Design Evaluation: https://pintia.cn/ Emmett, you. Code Hosting Platform: https://github.com/ Emmett, you @m . China University Mooc:https://www.icourse163.org/ 1063769427

20145216 "Java Program Design" 7th Week study summary textbook study content summary 13th time and date 13.1 recognize time and date For now, even if the label is GMT (either a file description or a date-time string description of the API), it actually refers to the UTC time. The unit definition of the second is based on the Tai, which is the number

understand some of the problems and actions that have never been encountered.Learning progress Bar lines of code (new/cumulative) Blog Volume (Add/accumulate) Learning Time (new/cumulative) Important Growth Goal 5000 rows 30 Articles 400 hours First week 200/200 1/4 10/10 Second week 300/500 1/5 10/20 Third week 800/1300 1/6

have the following program fragmentsinterface Some{int x = 10;}public class Main{public static void main (String [] args) { System.out.println(Some.x); }}The following description is correctA. Compilation failedB. Showing 10C. You must create an some instance to access XD. Showing 0Correct answer: BImpressionsThis week's focus is on the eighth chapter of the study, before just mechanically using such as String and scanner classes, through this ch

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 appli

start of the first set of small goals are not far away (our store?? Omega??) Our store??? Week Time Total code Amount New Code Volume total number of files number of new files 1 90 90 5 5 2 322 232 11 6 3 35W 330 16 5 4 946 294 21st 5 5 1347 401 26 5 6 1591

20165324 "Java Program Design" The 3rd week study summary textbook Learning content SummaryHere's what to learn this week: Programming language Ideas The core of the process-oriented language is to write a block of code to solve a problem; In object-oriented language, the core content is the object, all around the object.2. One of the core ideas of object programming: encapsulating d

interfaceInterfaceLove { Public Abstract voidLove ();}classLovedemo { Public voidMethodLove L) {//l; L = new Teacher (); Love L = new Teacher (); polymorphicL.love (); }}//Define concrete classes to implement interfacesclassTeacherImplementsLove { Public voidLove () {System.out.println ("Teachers love students, Love Java, love Brigitte"); }}classTeachertest { Public Static voidMain (string[] args) {//requirement: I want to test the Love () method i

20165327 2017-2018-2 "Java program Design" 9th Week Study Summary Teaching Contents Summary 13th chapter (a) Study contents summary of the textbookUnderstanding a URL class is an abstraction of a Uniform Resource locator, and an application that uses a URL to create an object is called a client program.A network socket is a TCP protocol-based connected communicat

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 wri

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 M

Tag: res daemon effect notification interrupt set Ali IsAlive get20165225 "Java Programming" Eighth Week study summary 1. Video and textbook Learning: 12th Chapter Study Summary 1.继承Thread类创建线程，程序中如果想要获取当前线程对象可以使用方法：Thread.currentThread();如果想要返回线程的名称，则可以使用方法：getName();2.实现Runnable接口创建线程3.使用Callable和Future创建线程线程常用方法:start()run()定义线程线程对象被调度之后所执行的操作sle

20165225 "Java Programming" the second week of study summary 1. Video and textbook Learning:##### 1.标识符：字母、下划线、美元符号、数字（不能是true，false，null还有关键字）。##### 2.关键字：int，double，float。基本数据类型:##### 3.整数类型：byte，short，int，long，区别主要是取值范围不一样。##### 4.字符类型：char，强制转换(int)‘a‘,(char)97##### 5.浮点类型: float(16位，只保持7-8位，float m=12.123456789f)，double(32位，保持15-16位)##### 6.基本数据类型排序:byteProblems encountered in learning: 1. The

20165314 2016-2017-3 "Java Program Design" 2nd week study summary Textbook study summary Byte Break is jumping out of all loops, continue is jumping out of the current loop Nextxxxxx blocking during execution, waiting for confirmation sprintf and println Problems in code debugging and the resolution processCode debugging in the textbook have a pro

20145320 "Java program design" The 1th Week study summary textbook Learning content SummaryChapter I.Java was first written in the program language of the STAR7 application in Sun's project green projects, May 23, 1995 Java was bornJava has three main platforms are Java SE, Java