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What's the best practice to round a float to 2 decimals? [duplicate]
...gives you this freedom.
/**
* Round to certain number of decimals
*
* @param d
* @param decimalPlace
* @return
*/
public static float round(float d, int decimalPlace) {
BigDecimal bd = new BigDecimal(Float.toString(d));
bd = bd.setScale(decimalPlace, BigDecimal.ROUND_HALF_UP);
return...
Do I need all three constructors for an Android custom view?
... @OvidiuLatcu can you please show an example of the third CTOR (with the 3 parameters) ?
– android developer
Sep 14 '13 at 20:10
...
NUnit's Assert.Equals throws exception “Assert.Equals should not be used for assertions”
...ere is no mistake by calling this function.
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
[EditorBrowsable(EditorBrowsableState.Never)]
public static new bool Equals(object a, object b)
{
// TODO: This should probably be InvalidOper...
Why doesn't ruby support method overloading?
...s the right answer. The accepted answer oversimplifies. C# DOES have named parameters and optional parameters and still implements overloading, so it's not as simple as "def method(a, b = true) won't work, therefore method overloading is impossible." It's not; it's just difficult. I found THIS answe...
Express: How to pass app-instance to routes from a different file?
... I am using different passport strategy for different query parameter. So I am trying to set passport.use("strategy-name") in a middleware. Even if I store passport in that middleware only with let passport = req.app,get('passport'). It is being modified for another set of requests. W...
How to export DataTable to Excel
... /// Export DataTable to Excel file
/// </summary>
/// <param name="DataTable">Source DataTable</param>
/// <param name="ExcelFilePath">Path to result file name</param>
public static void ExportToExcel(this System.Data.DataTable DataTable, string Excel...
Create a list from two object lists with linq
...rovided object is equal to the current Person
/// </summary>
/// <param name="obj">Object to compare to the current Person</param>
/// <returns>True if equal, false if not</returns>
public override bool Equals(object obj)
{
// Try to cast the object to compa...
How can I add an item to a IEnumerable collection?
...t; do it for me:
public static IEnumerable Append(this IEnumerable first, params object[] second)
{
return first.OfType<object>().Concat(second);
}
public static IEnumerable<T> Append<T>(this IEnumerable<T> first, params T[] second)
{
return first.Concat(second);
} ...
Is there a way to instantiate objects from a string holding their class name?
...tory class.
//Each class generated will have a suffix of the number of parameters taken by the derived type constructors.
#define BOOST_PP_FILENAME_1 "GenericFactory.hpp"
#define BOOST_PP_ITERATION_LIMITS (0,GENERIC_FACTORY_MAX_ARITY)
#include BOOST_PP_ITERATE()
#define GENERIC_...
C# Create New T()
...t<T>() where T : new()
{
return new T();
}
If you need to pass parameters:
protected T GetObject(params object[] args)
{
return (T)Activator.CreateInstance(typeof(T), args);
}
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