C# | Check if two StringBuilder objects are Equal

Last Updated : 03 May, 2022

StringBuilder.Equals Method is used to check whether this instance is equal to a specified object.

Syntax: public bool Equals (System.Text.StringBuilder sb); Here, sb is an object to compare with this instance, or null. Return Value: It will return true if this instance and sb have an equal string, Capacity, and MaxCapacity values; otherwise, false.

Example 1:

csharp

// C# program to if a StringBuilder object 
// is equal to another StringBuilder object 
using System; 
using System.Text; 

class Geeks { 

    // Main Method 
    public static void Main(String[] args) 
    { 

        // Create a StringBuilder object 
        // with a String passed as parameter 
        StringBuilder st1 = new StringBuilder("GeeksforGeeks"); 

        // Checking whether st1 is 
        // equal to itself or not 
        Console.WriteLine(st1.Equals(st1)); 
    } 
}

Output:

True

Example 2:

csharp

// C# program to if a StringBuilder object 
// is equal to another StringBuilder object 
using System; 
using System.Text; 

class Geeks { 

    // Main Method 
    public static void Main(String[] args) 
    { 

        // Create a StringBuilder object 
        // with a String passed as parameter 
        StringBuilder st1 = new StringBuilder("GeeksforGeeks"); 

        // Create a StringBuilder object 
        // with a String passed as parameter 
        StringBuilder st2 = new StringBuilder("GFG"); 

        // Checking whether st1 is 
        // equal to st2 or not 
        Console.WriteLine(st1.Equals(st2)); 

        // Create a StringBuilder object 
        // with a String passed as parameter 
        StringBuilder st3 = new StringBuilder(); 

        // Assigning st2 to st3 
        st3 = st2; 

        // Checking whether st3 is 
        // equal to st2 or not 
        Console.WriteLine(st3.Equals(st2)); 
    } 
}