Java

String class —— summary ,String The nature of , Memory resolution , Commonly used API

one , summary String: character string , Use a pair of "" Cause to express .String Declare as final Of , Not inheritable String Realized Serializa...
2020-06-04 12:27 views 38

Interviews are often asked SQL optimization

Interviews are often asked SQL optimization    As a back-end developer , It is essential to deal with the database in daily work , Whether in the ...
2020-05-18 11:21 views 22

This is the most classic outsourcing case in legend ? Don't outsource after watching it

Outsourcing refers to the decision-making of entrusting one or all of the contracting contracts to a third party other than the contracting partie...
2020-05-16 14:35 views 33

Android Development — Display food information according to customer budget

One , Effect display 2 , Main controls used CheckBoxRadioGroup/RadioButtonToggleButtonSeekBarImageViewEditText Three , Main code 1. Food public cl...
2020-04-24 14:53 views 31

After the outbreak Which programming has a bright future

　 After the outbreak Which programming has a bright future , For beginners of programming , The biggest difficulty is not knowing where to start...
2020-04-15 16:45 views 37

ajax send out post/get data ,java How to receive in the background

// Form key value pairs post Submit var paramData={ roomId:'1', address:'2' }; $.ajax({ url:"/test", ...
2020-03-19 10:26 views 29

java log Common mistakes of log

Cause analysis many programmers may inadvertently log like this logger.error(e);logger.error(e.getMessage);logger.error(" error message ：" + e); l...
2020-03-15 11:32 views 22

Dormitory information management system

Today, I found that I learned English at that time when I sorted out my study notes SSM I wrote a simple frame Javaweb Dormitory information manag...
2020-03-11 21:12 views 59

【Java Details of knowledge points 1】 cache

One , Foreword caching allows slow opening pages , Become able to “ Second on ”. Usual visit APP Almost all of them are related to the use of cach...
2020-02-28 15:49 views 32

JAVA How to output log gracefully in the background

         stay JAVA Backstage , One of the most frequently used tools is the code that outputs logs . In the...
2020-01-19 17:07 views 33
Technology
©2020-2024 ioDraw All rights reserved, Privacy Policy