Hi, I have an array of floats and I would like to convert it to an array of doubles in Java. I am aware of the obvious way of iterating over the array and creating a new one. I expected Java to digest a float[] smoothly where it wishes to work with double[]... but it can not work with this. What is the elegant, effective way of d...
I am using F# Interactive, and I have added the reference of FSharp.PowerPack.dll. When I try to convert BigNum to double as the following code, let n = 2N let d = double n error comes out that "System.MissingMethodException: Method not found: 'Double System.Numerics.BigInteger.ToDouble(System.Numerics.BigInteger)'. at Microsoft.F...
hello, here is a code sample void() { char c[100]; scanf("%s",c); char c2[100]=c; } my problem is when i do this assignment an error says that i can assign char * "c" to char[] "c2"; how can i achieve this assignment? ...
Okay so I have a class that has 'weak typing' I.E. it can store many different types defined as: #include <string> class myObject{ public: bool isString; std::string strVal; bool isNumber; double numVal; bool isBoolean; bool boolVal; double operator= (const myObject &); }; I would like ...
Given this class with an implicit cast operator: public class MyDateTime { public static implicit operator MyDateTime(System.Int64 encoded) { return new MyDateTime(encoded); } public MyDateTime(System.Int64 encoded) { _encoded = encoded; } System.Int64 _encoded; } I can now do the following...
I am working on a control that can take a number of different datatypes (anything that implements IComparable). I need to be able to compare these with another variable passed in. If the main datatype is a DateTime, and I am passed a String, I need to attempt to convert the String to a DateTime to perform a Date comparison. if the ...
So I get the time at the beginning of the code, run it, and then get the time. struct timeval begin, end; gettimeofday(&begin, NULL); //code to time gettimeofday(&end, NULL); //get the total number of ms that the code took: unsigned int t = end.tv_usec - begin.tv_usec; Now I want to print it out in the form "**code took 0.007 second...
This is a seemingly simple problem, but I'm having difficulty coming up with an answer. I have a float value that needs to be put into a std::string, like so: float val = 2.5; std::string my_val = val; // error here Obviously they're of different types. How do I convert from float to string? All help is appreciated. ...
I have the following data: F0 60 5B 50 BB 27 C4 01 I am 99% certain that this represents the date: 21/04/2004 17:11:33 I cannot for the life of me work out how it is encoding it. Am I being dense? I've tried just reading it in as a binary date, but that comes back with a date way in the future. I've tried assuming it's number of ticks ...
I want to calculate the percentage. But the compiler is giving an error that the input string is not in a correct format. Can some one elaborate what i am missing here? private double per() { double a = Convert.ToDouble(tbEnglish.Text+tbUrdu.Text+tbPhysics.Text+tbChemistry.Text+tbMaths.Text); double d = 500; double lblResult = (a...
In development blogs, online code examples and (recently) even a book, I keep stumbling about code like this: var y = x as T; y.SomeMethod(); or, even worse: (x as T).SomeMethod(); That doesn't make sense to me. If you are sure that x is of type T, you should use a direct cast: (T)x. If you are not sure, you can use as but need to ...
binary to string converter in php ...
Hello, I got the error: System.ArgumentException: Object must be of type Int32. in this code: MyBO target = new MyBO() { x1 = 20 }; In MyBO i have an attribute: public byte x1 {get; set;} What's wrong? I tried with MyBO target = new MyBO() { x1 = (byte)20 }; but i got the same error. Please help. Thanks! ...
Hello, So, in a MyBO class i have: [NotNullValidator(MessageTemplate = "Cannot be null!")] [RangeValidator(0, RangeBoundaryType.Inclusive, 20, RangeBoundaryType.Inclusive, Ruleset="validate_x1")] public byte x1 { get; set; } And in a test class: [TestMethod()] public void x1Test() { ...
I'm trying to convert a project over to scala 2.8 from 2.7 and I've run into some difficulty in the code that interacts with Java. Below is a slightly convoluted piece of sample code displaying the problem. Essentially I have class with a member variable of type mutable.Map[K,V] and I can't find a way to pass that through to a method tha...
My background is .net, I'm fairly new to Java. I'm doing some work for our company's java team and the architect needs me to implement a method that takes an InputStream (java.io) object. In order to fulfill the method's purpose I need to convert that into a byte array. Is there an easy way to do this? ...
I'm having trouble converting a java SortedMap into a scala TreeMap. The SortedMap comes from deserialization and needs to be converted into a scala structure before being used. Some background, for the curious, is that the serialized structure is written through XStream and on desializing I register a converter that says anything that...
I want to assign a ComboBox control to a class member of ComboBox type. This control is in a group on a worksheet. The problem is through GroupItems property, I can only get a Shape object, not a ComboBox. So when assigning, it alerts "type dismatch". If the control was not in a group, I could get an OLEObject object through OLEObjects...
Hi, Is there a way to control the type conversion in C#? So for example, if I have two types with essentially the same details, but one is used for the internal working of my application and the other is a DTO used for communicating with non-.Net applications: public sealed class Player { public Player(string name, long score) { ...
Is the following conversion safe? int b[10][10]; char *x; int a[]={0,1,2,3,4,5,6,7,8,9}; for(int i=0;i<10;i++) for(int j=0;j<10;j++) b[i][j]=a[i]; for(x=(char *)&b[0];x<=(char *)&b[9][9];x+=sizeof(a+1)) // Problem lies here! printf("%d\n",*x); I don't think the above conversion in the for loop is safe (I think it is platfo...