Summary of 10 examples of abnormal situation handling methods

The basic philosophy of Java is "poorly structured code cannot run"! ! ! ! ! If you are missing, it is not disadvantaged.                                                                                                                                                                               may be of great use. There can be no perfect things in this world. No matter how meticulous and careful the perfect thinking is, we cannot consider all factors. This is the so-called wise man who makes mistakes after every consideration. In the same way, the computer world is not perfect. Abnormal situations can occur at any time. All we need to do is to avoid those exceptions that can be avoided and deal with the exceptions that cannot be avoided. Here I will record how to use exceptions to program a "perfect world". 1. Why use exceptions? First of all, we can make it clear that the exception handling mechanism can ensure the robustness of our program and improve system availability. Although we are not

1. Java Improvement Chapter (16)-----Exception (1)

Introduction: There is no perfect thing in this world. No matter how meticulous and careful the perfect thinking is, we cannot consider all factors. This is the so-called wise man. There must be something wrong. In the same way, the computer world is not perfect. Abnormal situations can occur at any time. All we need to do is to avoid those exceptions that can be avoided and deal with the exceptions that cannot be avoided. Here I will record how to use exceptions to program a "perfect world".

2. mysql Advanced (Twenty) CPU overload exception

Introduction: During the project deployment phase, the CPU is always overloaded when submitting orders, causing the machine to freeze and order submission to fail. The following figure can be seen through the task manager:

3. Python exception summary

Introduction: python uses exception objects to represent abnormal situations

4. Socket programming under Python

Introduction: The first thing that needs to be explained is that this article will not record the profound socket programming, but only analyze it. Handling of several special exceptions in the simplest socket programming chat room

5. Analysis of unexpected exceptions when converting int such as intval() in PHP_PHP Tutorial

Introduction: Analyzing unexpected exceptions when converting int such as intval() in PHP. Let’s take a look at the following test code on the Internet: Copy the code as follows: ?php $a = 9.45*100; var_dump($a); var_dump(intval($a)); $a = 945*1.00; var_dump($ a); var_dump(intval($a))

6. Detailed explanation of PHP exception handling_PHP tutorial

Introduction: Detailed explanation of PHP exception handling. The exception handling (also known as error handling) feature provides a way to handle errors or abnormal conditions that occur while the program is running. Exception handling is usually a measure taken to prevent unknown errors from occurring

7. Related issues about the zf2 framework

Introduction: Questions about the zf2 framework. I just took over a project written with the zf2 framework. Currently, a strange problem occurred during the local environment debugging process. The code was cloned from the server and ran normally on the test server, but there were exceptions when deployed to my local machine. The main phenomenon is: The edit function of some pages of the website cannot be used normally. When entering

8. Detailed explanation of PHP exception handling

Introduction: Detailed explanation of PHP exception handling. The exception handling (also known as error handling) feature provides a way to handle errors or abnormal conditions that occur while the program is running. Exception handling is usually a measure taken to prevent unknown errors from occurring

9. Use job timing to compress the database

Introduction: The database on a project has been used for several months. The .mdf files and .ldf files combined have reached 100G+. If this continues, the hard disk will be burst. The reason for this is that there is a large amount of redundant data in a certain data table due to abnormal conditions. After cleaning the redundant data in the abnormal data table, the mdf file has not become smaller because the database has been deleted, ldf

10. PL/SQL exception and error handling

Introduction: An excellent program should be able to correctly handle various error situations , and recover from errors as much as possible. ORACLE provides exceptions (EXCEPTION) and exception handling (EXCEPTION) Question

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