casting Archives - IT Nursery

In Objective-C, what is the equivalent of Java’s “instanceof” keyword?

I would like to check whether an object (e.g. someObject) is assignable (cast-able) to a variable of another type (e.g. SpecifiedType). In Java, … Read more

Change type of varchar field to integer: “cannot be cast automatically to type integer”

by IT Nursery

I have a small table and a certain field contains the type “character varying“. I’m trying to change it to “Integer” but it … Read more

Implicit type conversion rules in C++ operators

by IT Nursery

I want to be better about knowing when I should cast. What are the implicit type conversion rules in C++ when adding, multiplying, … Read more

Downcasting in Java

by IT Nursery

Upcasting is allowed in Java, however downcasting gives a compile error. The compile error can be removed by adding a cast but would … Read more

String was not recognized as a valid DateTime ” format dd/MM/yyyy”

by IT Nursery

I am trying to convert my string formatted value to date type with format dd/MM/yyyy. this.Text=”22/11/2009″; DateTime date = DateTime.Parse(this.Text); What is the … Read more