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Articles by Chandu yadav
Page 10 of 81
Use reflection to create, fill, and display an array in Java
An array is created using the java.lang.reflect.Array.newInstance() method. This method basically creates a new array with the required component type as well as length.The array is filled using the java.lang.reflect.Array.setInt() method. This method sets the required integer value at the index specified for the array.The array displayed using the for loop. A program that demonstrates this is given as follows −Exampleimport java.lang.reflect.Array; public class Demo { public static void main (String args[]) { int arr[] = (int[])Array.newInstance(int.class, 10); int size = Array.getLength(arr); for (int i = 0; i
Read MoreC# Enum Format Method
The Format method converts value of a specified enumerated type to its equivalent string representation. Here you can also set the format i.e. d for Decimal, x for HexaDecimal, etc.We have the following enumeration.enum Stock { PenDrive, Keyboard, Speakers };The default value gets assigned (initialize).PenDrive = 0 Keyboard = 1 Speakers = 2Now, let’s say you want the value of “Keyboard” name.Stock st = Stock.Keyboard;For that, try the following and get the constant value for Keyboard name.Enum.Format(typeof(Stock), st, "d")The following is the entire example.Exampleusing System; class Demo { enum Stock { PenDrive, Keyboard, Speakers }; static void Main() ...
Read MoreWhat is the IsReadOnly property of Hashtable class in C#?
The IsReadOnly property of Hashtable class is used to get a value indicating whether the Hashtable is read-only.Exampleusing System; using System.Collections; namespace Demo { class Program { static void Main(string[] args) { Hashtable ht = new Hashtable(); ht.Add("One", "Amit"); ht.Add("Two", "Aman"); ht.Add("Three", "Raman"); Console.WriteLine("IsReadOnly = " + ht.IsReadOnly); Console.ReadKey(); } } }OutputIsReadOnly = FalseAbove we have set a Hashtable with three elements.ht.Add("One", "Amit"); ht.Add("Two", "Aman"); ht.Add("Three", "Raman");After that, we have checked using the IsReadOnly property.Console.WriteLine("IsReadOnly = " + ht.IsReadOnly);
Read MoreWhen should you use a class vs a struct in C++?
Structures and classes are very similar in C++ except for some differences. So details about these differences are given below that help to decide when to use a class or structure in C++.Differences between Class and StructureAll the members of a class are private by default. This is different compared to structures as all the members of a structure are public by default.A program that demonstrates a class in C++ is given as follows −Example#include using namespace std; class Example { int val; }; int main() { Example obj; obj.val = 20; return 0; }This ...
Read MoreDecimal Functions in C#
The following are some of the decimal functions in C#.Sr.No.Name & Description1Add (Decimal, Decimal)Adds two specified Decimal values.2Ceiling(Decimal)Returns the smallest integral value that is greater than or equal to the specified decimal number.3Compare (Decimal, Decimal)Compares two specified Decimal values.4CompareTo(Decimal)Compares this instance to a specified Decimal object and returns a comparison of their relative values.5CompareTo(Object)Compares this instance to a specified object and returns a comparison of their relative values.6Divide (Decimal, Decimal)Divides two specified Decimal values.7Equals(Decimal)Returns a value indicating whether this instance and a specified Decimal object represent the same value.Let us see an example of Decimal Ceiling() method in C# that returns the smallest integral value greater than or equal to ...
Read MorePython Text Sequence Types
In python the str object, handles the text or string type data. Strings are immutable. The strings are sequence of Unicode characters. We can use single quote, double quotes or triple quotes to define the string literals. ‘This is a string with single quote’ “Another Text with double quotes” ‘’’Text using three single quotes’’’ or “””Text using three double quotes””” We can use triple quotes to assign multiline strings in python. There is different string related functions. Some of the String methods are as follows − Sr.No. Operation/Functions & Description 1 s.capitalize() Convert first ...
Read MoreHide content with Bootstrap
To hide content with Bootstrap, use the .hidden class in Bootstrap. You can try to run the following code to hide content:Example Bootstrap Example Content is visible. Content is hidden.
Read MoreItem text inside the list group in Bootstrap
To set item text inside the list group, use the .list-group-item-text class.You can try to run the following code to implement the .list-group-item-text class −Example Bootstrap Example Cars Hyundai i10 i20 Volkswagen Vento Polo
Read MoreWhat is a parameterized constructor in C# programs?
In a constructor you can also add parameters. Such constructors are called parameterized constructors. This technique helps you to assign initial value to an object at the time of its creation.The following is an example −// class class DemoParameterized constructor with a prarameter rank −public Demo(int rank) { Console.WriteLine("RANK = {0}", rank); }Here is the complete example displaying how to work with parameterized constructor in C# −Exampleusing System; namespace Demo { class Line { private double length; // Length of a line public Line(double len) { //Parameterized constructor ...
Read MoreTime Functions in C#
The DateTime has methods and properties for Date and Time as well like how to get the number of hours or minutes of a day, etc.Let us only focus on the time functions −Refer MSDN (Microsoft Developer Network) for all the functions −Sr.No.Method & Properties1AddDays(Double)Returns a new DateTime that adds the specified number of days to the value of this instance.2AddHours(Double)Returns a new DateTime that adds the specified number of hours to the value of this instance.3AddMilliseconds(Double)Returns a new DateTime that adds the specified number of milliseconds to the value of this instance.4AddMinutes(Double)Returns a new DateTime that adds the specified ...
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