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20165318 2017-2018-2 "Java Program design" Sixth week study summary teaching Contents study Summary Eighth chapter common practical Class 1, String class The string class is used to process character sequences, and in the Java.lang package, the program can use the string class directly. It is important to note that Java declares the string class as the f

20165318 2017-2018-2 "Java program design" Fifth Week study summary study summary When using idea, because the code I wrote earlier is using GBK encoding, when you open it, the code will be garbled in Chinese because it defaults to UTF-8. Summary of the contents of the textbook: The seventh chapter inner class and Exception classFirst, inner class and anonymous class Inner class:

20165103 2017-2018-2 "Java program Design" 7th Week Study summary Textbook study summarySummarize what you learned this week as simple as possible.Problems in teaching materials learning and the solving processTextbook learning Problems first go to https://shimo.im/doc/1i1gldfsojIFH8Ip/to see, if others did not ask the same question, you can edit the document to add, and then copy their questions to the fol

) Learning Time (new/cumulative) Important Growth Goal 5000 rows 30 Articles 400 hours First week 13/13 1/30 19/19 Second week 426/426 3/30 12/12 Third week 562/562 4/30 15/15 Week Four 1552/1958 5/30 16/16 Week Five 1123/3086 6/30 14

20165103 2017-2018-2 "Java program design" 1th Week study summary textbook study summary Chapter One Essentials Summary The status and characteristics of Java Installing the JDK (Windows and Linux operating systems) To write a simple Java application Learn about different programming styles Anti-compilation Learn to submit jobs using the code cloud Problems in teaching

Goal 5000 rows 30 Articles 400 hours First week 36/36 4/4 30/30 Second week 464/500 1/5 18/48 Third week 832/1332 2/7 17/65 Week Four 939/2271 2/9 17/65 Week Five

code as follows;public class Example3_7 {public static void main (String args[]) { int sum =0,i,j; for(i=1;i WORKAROUND: Because I use the end-of-line style when I hit the code, and even if if there is only one line of code in the statement that does not omit {}, I enclose the statements if in the statement in break; {}, but the output primes are only 2 and 3, but I get rid break; The {} of the s

code for this week exceeds 300 branches, plus 2 points Other bonus points, plus 2 points Beautifully formatted plus one point Add 1 points to the progress bar to record the learning time and improvement situation This week's study of the knot Student number 21st, pair Pairs of learning content To discuss and study aft

resolution process Issue 1: In the Java Runtime extension, the Jerry.jar file needs to be stored in the Jre/lib/ext folder in the JDK installation directory, but I do not see the Ext folder under the folder. Issue 1 solution (not resolved): Jdk\jre\lib\ext is the extended class library that the JVM loads. After a network lookup did not find the answer to the real problem, I think it should be

return the number of columns in the result set RS, calling other methods to implement the corresponding function. Transaction Transactions and processing: the application guarantees that the SQL statements in the transaction are either all executed or not executed. Transaction process steps Turn off autocommit mode with the Setautocommit (Booean B) method Handling transactions with the Commit method Processing a transaction failure with the rollback ()

20165201 2017-2018-2 "Java program Design" 7th Week study summary textbook Study content summary 11th chapter code hosting last week exam wrong title summaryParsing: B: A subclass can have only one parent class, but a parent class may have more than one child classParsing: The A:abstract keyword cannot be applied to static, private, or final methods. E: cannot have method bodyParse: A: It should be dashed.

database has not been connected ... Such as: Problem Solving method: I asked our class to use the same Mac classmate, and search the question on the Internet, the conclusion is: My JDK version is too high, I use JDK 9, but the current connector does not support this version, so I need to swap with JDK 8 Code Hosting last week exam error summaryAnswer: ACDEAnswer: Ab,select is notAnswer: Rowset inherits the interface resultset and populates its data area with populate!Learning progress

wrong quizParsing: B: A subclass can have only one parent class, but a parent class may have more than one child classParsing: The A:abstract keyword cannot be applied to static, private, or final methods. E: cannot have method bodyParse: A: It should be dashed. C: The interface cannot invoke other non-interface methods in the classLearning progress Bar lines of code (new/cumulative) Blog Volume (Add/accumulate) Learning Time (new/cumulative) Important Growth

constructing a file object where filename is the name of the document, DirectoryPath is the path to the file, and Dir is a directory: File(String filename);File(String directoryPath,String filename);File(File dir,String filename); Buffered streams Output stream: The Read and write methods of the character input stream and output stream use a character array to read the data Use scanner to parse a file, create a dialog box with JFileChooser Code Hosting(run result of s

.$$ solution: $$ (A, b) = 1\rightarrow (a^2, b) = 1 \rig Htarrow (a^2 + b^2, b) = 1.$$ similarly available $ (a^2 + b^2, a) =

infix suffix expression: The results are as follows test of the problem of the output test for the answer of the computed infix suffix expression Test difficulties encountered in testing and workarounds Difficulty 1: Because at that time the class is not unified, the class is too many, so there are some tests split and incomplete; /li> Difficulty

20165203 2017-2018-2 "Java program design" the first week to summarize the learning contents of teaching materials (a) the status of JavaJava is an object-oriented programming, and involves the network, multithreading and other important basic knowledge, is a very good object-oriented language.(ii) Features of JavaSimple Object-oriented platform independent multithreading dynamic(c) Three major platforms of

20165101 Liu Tiano 2017-2018-2 "java program design" The 1th Week study summary textbook Learning content Summary The status of Java Features of Java Installing the JDK Java Application Development Steps Anti-compilation Install Git Using Git to host code in the Code cloud Problems in teaching materials learning and the solving process Question

non-daemon thread, and the thread must set itself as a daemon before running. You can call Voidsetdaemon (Boolean on) to set yourself as a daemon thread. When all non-daemon threads run at the end, the daemon thread must end.Problems in teaching materials learning and the solving process Question 1: What is a time slice?Problem 1 Solution: Through Baidu query, the time slice that the CPU allocates to e

20165217 2017-2018-2 "Java program design" Fifth week study summary textbook study summaryUnite 7 Inner class: Java supports declaring another class within a class, such that a class is called an inner class, and a class containing an inner class is called an outer class of an inner one. Outer-Nested class: A class that contains an inner class, called an outer-nested class of an inner class. Anonymo