Do you have any DataGrids in your ASP.NET application with a CheckBox for each row? If so, you may have wanted a faster way to check or uncheck all items.
A given array of objects can be one-dimensional, two-dimensional, three-dimensional, or n-dimensional. How can you tell? In this tip, the function getDim(Object o) takes an object and finds out it’s
The following code demonstrates how to initialize class members in the initialiser list for more efficiency: class A{int a;char b;float c;public: A();};A::A():a(0),b(0),c(0){}is more efficient thanA::A(){ a = 0; b =
Say you’re trying to overwrite an existing file, but its attribute is set to “Readonly,” so it generates a “Permission Denied” error. The following code shows how to change the
The StringTokenizer and the Missing Token tip tells us how to cater for empty parameters, for example in the comma delimited string following: token1,token2,,token4,,,token7 The tip works well, with the
The basic principal of this function is to divide the decimal number by two for bit number of times (if that makes sense). So, if bit 30 was to be
Data that is in rows and columns is usually stored in 2-dimensional arrays. Two-dimensional arrays are declared by specifying the number of rows then the number of columns. Unless specified,
Use a simulator to see the output: import javax.microedition.midlet.*;import javax.microedition.lcdui.*;public class HelloWorld extends MIDlet implements CommandListener { private Command exitCommand; private TextBox tbox; public HelloWorld() { exitCommand = new Command(“Exit”,