static-class

问题 I am new to android and i try to develop a system but when i finish code the handler show this warning below show the code after I edit, the handler in event ontounch show the warning handler cannot be resolved. I try putting // to ignore the handler at i try run the application and its result in force close. public class MainActivity extends Activity { protected static final int STOP = 100; ImageView iv; private ProgressBar pb; LinearLayout ll; private AnimationDrawable anim; ScrollView sv;

问题 I'm met with a big problem in C# AppDomain. I need to load a static class in a .dll file and execute its method: When I try to load them by Assembly.LoadFrom("XXXXX") // (XXXXX is the full path of dll) the .dll will not be unload automatically or programmatically. When I try to load them in AppDomain like adapterDomain = AppDomain.CreateDomain("AdapterDomain"); (a)adapterDomain.CreateInstanceFrom(this.AdapterFilePath, this.AdapterFullName); (b)adapterAssembly=adapterDomain.Load(AssemblyName

问题 I'm met with a big problem in C# AppDomain. I need to load a static class in a .dll file and execute its method: When I try to load them by Assembly.LoadFrom("XXXXX") // (XXXXX is the full path of dll) the .dll will not be unload automatically or programmatically. When I try to load them in AppDomain like adapterDomain = AppDomain.CreateDomain("AdapterDomain"); (a)adapterDomain.CreateInstanceFrom(this.AdapterFilePath, this.AdapterFullName); (b)adapterAssembly=adapterDomain.Load(AssemblyName

问题 I'm met with a big problem in C# AppDomain. I need to load a static class in a .dll file and execute its method: When I try to load them by Assembly.LoadFrom("XXXXX") // (XXXXX is the full path of dll) the .dll will not be unload automatically or programmatically. When I try to load them in AppDomain like adapterDomain = AppDomain.CreateDomain("AdapterDomain"); (a)adapterDomain.CreateInstanceFrom(this.AdapterFilePath, this.AdapterFullName); (b)adapterAssembly=adapterDomain.Load(AssemblyName

问题 I know it depends on the context in which the anonymous class has been written (static or non static method). but look this part of code: public class A { int fieldOfA; private static class B { int fieldOfB; } public static void main(String[] args) { B obj = new B() { //this anonymous class is static becuase is in the main method. private static void testMethod() { //so why here i have an error and i can put just a non-static method //if my class is static ? //a class static can have static

问题 1. I have created Test Class which contain Static Class and Property. namespace QSys.Data.Domain.DataSecurity { public static class TestData { public static string MyName { get; set; } } } 2. Customer Model class and Custom Validation namespace QSys.Data.Domain { [Serializable()] public class Customer { [Key] public virtual int Id { get; set; } [CustomValidation(typeof(CustomerRequiredRules), "IsCompanyNameEmpty")] public virtual string CompanyName { get; set; } public virtual string City {

问题 I'm trying to build a static class called Logger that will upload the log files at some point, when called like [Logger uploadLogFiles] . I'm trying to add an observer to this static class like so: [Logger addObserver:self forKeyPath:@"uploadComplete" options:NSKeyValueObservingOptionNew context:nil]; I do this just before starting an asynchronous call method for NSURLConnection. I do get a warning, saying Incompatible pointer types sending Class to parameter of type NSObject * . However,

问题 I still got confused with StaticClass code which given from my friend to alternative save besides Shared Preferences, already 3 days I tried learned the code and asked but there is still a little problem with a code this is the latest following code in my selectlevel.class that i have perfected public class selectlevel extends Activity { Button f1, f2, f3; ImageView f2lock, f3lock; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this

问题 What is benefit of using an inner static class? Where should I prefer it over other options? And how is its memory allocated? 回答1: If the inner class is static, you don't need an instance of the outer class to instantiate it. If the inner class is public, it's basically just a name-scoping technique for highlighting the fact that the class "belongs" to the outer class. If you make the inner class private however, it can't be used outside of that class. 回答2: One of the most compelling reasons

问题 I want to know how many instances of a static member class can be created by the enclosing class. I assume one only, but then the following extract from Bloch doesn't make sense to me. Quoting Joshua Bloch's Effective Java - Item 22*: Favor static member classes over nonstatic. A common use of private static member classes is to represent components of the object represented by their enclosing class. For example, consider a Map instance, which associates keys with values. Many Map