runtime

问题 I would like to change the cursor icon to my customized 32x32 image when a Java application is executing. I looked and searched, those I found are just setting cursor on a JComponent. But I want the cursor changed to my specified icon wherever it goes moving, browsing, and click, as long as the Java application is still running, or you can say program runtime. Thanks alot. 回答1: Standard cursor image: setCursor(Cursor.getDefaultCursor()); User defined Image: Toolkit toolkit = Toolkit

问题 I would like to change the cursor icon to my customized 32x32 image when a Java application is executing. I looked and searched, those I found are just setting cursor on a JComponent. But I want the cursor changed to my specified icon wherever it goes moving, browsing, and click, as long as the Java application is still running, or you can say program runtime. Thanks alot. 回答1: Standard cursor image: setCursor(Cursor.getDefaultCursor()); User defined Image: Toolkit toolkit = Toolkit

问题 I'm in the situation where I've installed the JDK, but I can't run applets in browsers (I may not have installed the JRE). However, when I install the JRE, it clobbers my JDK as the default runtime. This breaks pretty much everything (Eclipse, Ant) - as they require a server JVM. There's no JAVA_HOME environment variable these days - it just seems to use some registry magic (setting the system path is of no use either). Previously, I've just uninstalled the JRE after I've used it to restore

问题 I'm getting runtime error (NZEC) when running the following code over at SPOJ. I'd be very thankful if any of you would kindly point out what's going on. //0<=A<=B<=10^18, 1<=N<=10^18 using System; class any { static void Main() { long t = long.Parse(Console.ReadLine()); ulong a, b, n; for(long k = 0; k < t; k++) { string[]s = Console.ReadLine().Split(' '); a = ulong.Parse(s[0]); b = ulong.Parse(s[1]); n = ulong.Parse(s[2]); Console.WriteLine(diviEntre2(a, b, n)); } } static ulong diviEntre2

问题 Its easy to get a method Name of a Class at run time BUT How i can get a JavaDoc of a method at run time ? As the following example Our Class that include JavaDoc of our target method public class MyClass { /** * * @param x value of .... * @return result of .... */ public String myMethod(int x) { return "any value"; } } Our Class that has a main method public class TestJava { public static void main(String[] args) { // get Class method Name at run time String methodName = MyClass.class

问题 To whom this may concern, I have searched a considerable amount of time, to work a way out of this error "Deleted row information cannot be accessed through the row" I understand that once a row has been deleted from a datatable that it cannot be accessed in a typical fashion and this is why I am getting this error. The big issue is that I am not sure what to do to get my desired result, which I will outline below. Basically when a row in "dg1" is deleted the row beneath it takes the place of

问题 Say there is: class A(B): ... where B could be object and ... is not : @classmethod # or @staticmethod def c(cls): print 'Hello from c!' What do I have to do that calling A.c() wont trigger AttributeError ? In other words, I know it is possible to manually add class methods to a class at runtime. But is it possible to do so automatically, say every time a class method is missing it creates some dummy method? In yet another words, only if I could replace A.__dict__ with my dict which handles _

问题 In Java, is there a way (at runtime) to obtain the bytecode which defined a particular class? Put another way, is there a way to obtain the byte[] array passed to ClassLoader.defineClass(String name, byte[] b, int off, int len) when a particular class was loaded? I see that this method is declared final , so creating a custom ClassLoader to intercept class definitions seems out of the question. In the past, I have used the class's ClassLoader to obtain the bytecode via the getResourceAsStream

问题 My scenario should be simple... the type I want to convert FROM is ALWAYS 'string'. What I want to convert to... could be many things - ints, DateTimes, ... strings, etc. This would be easy: string valueToConvertFrom = "123"; int blah = Convert.ToInt32(valueToConvertFrom); However... I don't know (until runtime) that the value I need to convert to is an 'Int' (or whatever). I have tried this: string valueToConvertFrom = "123"; Type convertToType = typeof(int); object blah = Convert.ChangeType