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Java programming idea enumeration type Basic enum characteristics Call the values() method of enum to traverse the Enum instance. The values method returns the Enum instance array, and the elements in the array are strictly kept in the order when they are declared in enum public enum Shrubbery { ...

background Print git submission information compilation information when Go program runs Golang compiling information injection program When debug ging, we need to know what version of go program is currently running Don't waste time trying to confirm the version External parameters can be injected during go build compilation Let go progra ...

C programming (Fifth Edition) Tan Haoqiang -- Chapter four exercises after class 4. There are three integers a, B and C, which are input by keyboard and output the largest number. #include<stdio.h> #include<math.h> #include<stdlib.h> int main(){ int a,b,c; printf("Please ente ...

1. Process oriented: all work is written and used now. The way of thinking is analysis and synthesis. The object-oriented way of thinking is construction. 2. Object oriented: it is a kind of programming idea. Many functions have been written in advance. When using it, you only need to pay attention to the use of the function, r ...

scene In Android, frame by frame animation is composed of consecutive pictures. Effect     Note: Blog: https://blog.csdn.net/badao_liumang_qizhi Pay attention to the public address Domineering procedural ape Get programming related ebooks, tutorials and free downloads. Realization First, prepare a group of photos with different expressions, ...

WINDOWS SOCKET programming example Important points: Server side Client Code See? You don't need to know the ip and port of the client in the whole process of socket programming at the code level. The following protocol stack will detect it by itself. But socket is actually to use the client's ip a ...

200104 spring web series tutorialresttemplate 4xx / 5xx exception information capture Recently, when using RestTemplate to access external resources, an interesting problem was found. Because the permission verification fails, the http code of 401 returned by the other party will also contain some exception prompt information in the returned ...

Solution independence Write a program to solve Sudoku problem through filled space. This problem is mainly solved by backtracking. Select the row, column and block with the least space, and then fill in them. If there is a problem, backtracking is needed class Solution { public: // Line, column an ...

String splicing problem Because the object content of the String class cannot be changed, a new object is always created in memory whenever String splicing is performed. For example: public static void main(String[] args) { String s = "Hello"; s += "World"; System.out.println(s); } The Stri ...

scene In Android, the brush uses the Paint class, and the Canvas uses the Canvas class to represent it. Basic steps of drawing First, write a custom view class inherited from view, then rewrite its onDraw method, and finally add the custom view to actvity. Effect     Note: Blog: https://blog.csdn.net/badao_liumang_qizhi Pay attention to the ...