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What is the use of ‘new’ keyword in C#?
Use the new keyword to create an instance of the array −
int [] a = new int[5];
The new operator is used to create an object or instantiate an object. Here in the example, an object is created for the class using the new −
Example
using System; namespace CalculatorApplication { class NumberManipulator { public void swap(int x, int y) { int temp; temp = x; /* save the value of x */ x = y; /* put y into x */ y = temp; /* put temp into y */ } static void Main(string[] args) { NumberManipulator n = new NumberManipulator(); /* local variable definition */ int a = 100; int b = 200; Console.WriteLine("Before swap, value of a : {0}", a); Console.WriteLine("Before swap, value of b : {0}", b); /* calling a function to swap the values */ n.swap(a, b); Console.WriteLine("After swap, value of a : {0}", a); Console.WriteLine("After swap, value of b : {0}", b); Console.ReadLine(); } } }
Output
Before swap, value of a : 100 Before swap, value of b : 200 After swap, value of a : 100 After swap, value of b : 200
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