20172325 2017-2018-2 "Java Programming" Sixth Week study summary

20172325 2017-2018-2 "Java Program design" Sixth week study summary textbook study summary

1. Using [] To create an array, the entire column of data can be referenced by the array name, each element in the array can be referenced by its position in the array;
2. The bounds check of an array is declared in advance by the size of the arrays, and once the value entered later exceeds the range automatically terminates;
3. The array is declared in two ways, or int[] grades = int grade[];
4. When an array is created, each string stored in the object array is his own object, and each object in the array must be instantiated.
5. After a formal parameter is established, the main method is called from the command line, and Javac and Java will lose their function.

Problems in teaching materials learning and the solving process

Textbook 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 following:

• Question 1: For the For statement in the example is not very understand "for (int value:list)" In the previous learning process did not mention this statement, do not understand the specific meaning, in this chapter also did not explain
• Problem 1 Solution: Baidu a bit, explain quite a lot of
  
  Professional parlance is called traversing an array, which is understood to mean that after an array has been established, the final output operation will be able to specify each value in the output array.

Problems in code debugging and the resolution process

• Question 1: Before actually manipulating the command-line arguments, I don't know what that means, there is a situation
  

• Problem 1 Solution: After reading the book and surfing the Internet, I learned the meaning of the command-line arguments and referenced the relevant data

• Issue 2: When editing the PP8.1, the runtime when I entered 51 when the following situation occurred, but the other outside the number is not a problem, the program terminates normally.
  

• Problem 2 Solution: After a serious discussion between me and Zhang Xu, I found that we PP8.1 edit the bug, that is, "one error", after the definition of the scope of the changes have been successful, of course, the reverse of the 0 value is also a reason.

• ...

Code Hosting

Last week, the test of the wrong title summary of the pair and mutual Comment review Template:

• Blogs that are worth learning or questions:
  • Xxx
  • Xxx
  • ...
• Something worth learning or doing in your code:
  • Xxx
  • Xxx
  • ...

• Based on the scoring criteria, I scored this blog: xx points. The score is as follows: XXX

• Reference example

reviewed the classmates blog and code

• This week's study of the knot
  • Pair of students study No. 1
  • Pair of photos
  • Pairs of learning content
    • Xxxx
    • Xxxx
    • ...

• Last week's blog comments on the situation (as long as the link, specific reviews put the corresponding blog)

  • Study No. 1
  • Study No. 2
  • Study No. 3
  • Study No. 4
  • ...

Other (sentiment, thinking, etc., optional)

Xxx
Xxx

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	2/2	20/20
Second week	300/500	2/4	18/38
Third week	500/1000	3/7	22/60
Week Four	300/1300	2/9	30/90

Resources

• Java Programming and Data structure tutorial

• Learning Guide of the Java Learning Note (8th Edition) Learning Guide

• ...

20172325 2017-2018-2 Java programming Sixth week of study summary