C# | Check if two ArrayList objects are equal
Equals(Object) Method which is inherited from the Object class is used to check whether the specified ArrayList object is equal to another ArrayList object or not.
Syntax:
public virtual bool Equals (object obj);
Here, obj is the object which is to be compared with the current object.
Return Value: This method return true if the specified object is equal to the current object otherwise, false.
Below programs illustrate the use of above-discussed method:
Example 1:
using System;
using System.Collections;
class Geeks {
public static void Main(String[] args)
{
ArrayList arrlist = new ArrayList();
arrlist.Add(1);
arrlist.Add(2);
arrlist.Add(3);
arrlist.Add(4);
arrlist.Add(5);
Console.WriteLine(arrlist.Equals(arrlist));
}
}
|
Example 2: The equals method only check if both ArrayList references refer to same object or not. It returns false if two objects are different, even if they have same values.
using System;
using System.Collections;
class Geeks {
public static void Main(String[] args)
{
ArrayList arrlist = new ArrayList();
arrlist.Add( "This" );
arrlist.Add( "is" );
arrlist.Add( "C#" );
arrlist.Add( "ArrayList" );
arrlist.Add( "Tutorial." );
ArrayList arrlist2 = new ArrayList();
arrlist2.Add( "This" );
arrlist2.Add( "is" );
arrlist2.Add( "C#" );
arrlist2.Add( "ArrayList" );
arrlist2.Add( "Tutorial." );
Console.WriteLine(arrlist.Equals(arrlist2));
ArrayList arrlist3 = new ArrayList();
arrlist3 = arrlist2;
Console.WriteLine(arrlist3.Equals(arrlist2));
}
}
|
Note: If the current instance is a reference type, the Equals(Object) method checks for reference equality.
Last Updated :
18 Feb, 2019
Like Article
Save Article
Share your thoughts in the comments
Please Login to comment...