uncaught exception

Message ForwardingIn order for a class to understand a message, we must implement the corresponding method in code. However, at compile time, sending a message to the class that it cannot read does not give an error, because you can continue to add

2014.7.22 when an error occurs, illegalcallofnon-staticmemberfunction? Solution: non-static member functions are called without passing through objects. Only static member functions (static is equivalent to global functions) can be called directly,

1. Thread and Process Concepts1.1. Process: Has a separate memory space, each independently executed program is called a process1.2. Thread: A thread is an execution path inside a program, and a Java Virtual machine allows an application to run

Everyone in the debugging process, often encounter inexplicable program crashes, then how should we look at the details of these crashes?By Baidu, there are the following methods:The first is to write two classesCrashapplicationPackage

4. Testing for failed DebugsIt's time to trace the failure of the previous test. Open GAMEBOARD.M, find Cellstateatcolumn:androw: And SetCellState:forColumn:andRow: Methods, you'll see that they all call a checkboundsforcolumn: Androw: The helper

In the development of Android project, we all know that if the program error, will pop up a forced exit popup box, this itself is not a problem, but this UI is too ugly, not to mention the user can not accept, even we ourselves may not accept.

iOS in the use of the system's mail, SMS sharing, if the page is forbidden to turn the screen, then there may be no problem, if it is set to allow the screen, then if you-(Nsuinteger) supportedinterfaceorientationsMethod return value is not

Final: Used to declare properties, methods, and classes. The modification is the basic type, which means that the value given by the variable is immutable, that is, it is a constant, and the final decorated method cannot be overridden by subclasses,

Problem Description:In the Android4.4.2 above custom-made things, today code base changed to Android4.4.4.After the code merge to the new Android 4.4.4 code base, the clean build will report the following error:1W/DALVIKVM (3125): Threadid=1:thread

When testing the first program of ESRI ArcGIS for Android HelloWorld, report this error:Binary XML File:error Inflating class Com.esri.android.map.MapViewThe full error log is:1 12-13 18:50:15.619:W/DALVIKVM (21282): Exception

Four Points of note: 1. When you create a table, the Declaration field type is binary blobnsstring *ineditortablename = @ "CREATE TABLE In_editor (Picurls blob not null)"; 2. Insert the SQL statement, Convert Nsarray to NSData type NSData

After a long time, the source code has a bug. You can use the latest version of ubuntu12.10cocos2d-x to modify the environment. gitclonegithub. comcocos2dcocos2d-x.git download cocos2d-x Source Code 2. download ndk, my 64-bit version android-ndk-r8e3

Depending on how the JSP handles the error, it can be divided into local exception handling and global exception handling. Local exception handling applies to individual JSP pages, and when these pages have errors, they are handled in a special way;

Friend makes it possible to develop more flexible interfaces for the class. Classes can use member functions of other functions, other classes, and other classes as friends. In some cases, forward declarations may be required, and special attention

1, about swift and debugging, Swift in ios7.0 only support, ios8.3 system's real machine must xcode6.3 to debug, install xcode6.3 need OS X 10.10 or more2, the application is started and set by Main.storyboard, define which viewcontroller to start

1. Dynamic ID cannot be positioned to elementFor example:Webelement xiexin_element = driver.findelement (By.id ("_mail_component_82_82"));Webelement xiexin_element = driver.findelement (By.xpath ("//span[contains (., ' letter

Smarty is a very popular template system. It separates business and logic, and runs fast. It is widely used in php websites. However, a problem occurs when deploying it to sina app engine (sae). Because sae cannot perform file read/write operations

Solve the Problem of VM heap and VMheap get a simple image display program today LinearLayout linearLayout =(LinearLayout)this.findViewById(R.id.LinearLayout1); for(int i=0;i The physical machine runs normally, but the following problems

Android Platform program crashes everyone should have encountered, force close and ANR should be encountered by everyone more.Here is a brief description of the various types of crashes of the Android platform and a list of reasons.1.ANR (Visible

There are two levels of supported screen orientations, one at the app level and the other at the Viewcontroller level.App-level settings can be set in [Target]-[general]-[device orientation], such as:By default, upside down is not checked, and the