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C# | Check if two StringCollection objects are equal
  • Last Updated : 01 Feb, 2019

Equals(Object) Method which is inherited from the Object class is used to check if a specified StringCollection object is equal to another StringCollection 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 it returns false.

Below programs illustrate the use of above-discussed method:



Example 1:




// C# code to check if two
// StringCollections are equal or not
using System;
using System.Collections.Specialized;
  
class GFG {
  
    // Driver code
    public static void Main()
    {
  
        // creating a StringCollection named myCol
        StringCollection myCol = new StringCollection();
  
        // Adding elements in StringCollection
        myCol.Add("A");
        myCol.Add("B");
        myCol.Add("C");
        myCol.Add("D");
        myCol.Add("E");
  
        // Checking whether myCol is
        // equal to itself or not
        Console.WriteLine(myCol.Equals(myCol));
    }
}
Output:
True

Example 2:




// C# code to check if two
// StringCollections are equal or not
using System;
using System.Collections.Specialized;
  
class GFG {
  
    // Driver code
    public static void Main()
    {
  
        // creating a StringCollection named my1
        StringCollection my1 = new StringCollection();
  
        // Adding elements in StringCollection
        my1.Add("GFG");
        my1.Add("Noida");
        my1.Add("DS");
        my1.Add("Geeks");
        my1.Add("Classes");
  
        // Creating a StringCollection named my2
        StringCollection my2 = new StringCollection();
  
        my2.Add("Australia");
        my2.Add("Belgium");
        my2.Add("Netherlands");
        my2.Add("China");
        my2.Add("Russia");
        my2.Add("India");
  
        // Checking whether my1 is
        // equal to my2 or not
        Console.WriteLine(my1.Equals(my2));
  
        // Creating a new StringCollection
        StringCollection my3 = new StringCollection();
  
        // Assigning my2 to my3
        my3 = my2;
  
        // Checking whether my3 is
        // equal to my2 or not
        Console.WriteLine(my3.Equals(my2));
    }
}
Output:
False
True

Note: If the current instance is a reference type, the Equals(Object) method checks for reference equality.




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