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C# | Boolean.CompareTo(Object) Method
  • Last Updated : 23 Apr, 2019

Boolean.CompareTo(Object) Method is used to compare the current instance to a specified object and returns an integer which shows their relationship to one another.

Syntax:

public int CompareTo (object obj);

Here, it takes an object to compare to current instance or null.

Return Value: This method returns a signed integer which shows the relative order of the current instance and obj.

  • Less than zero: If this instance is false and obj is true.
  • Zero: If this instance and obj are equal (either both are true or both are false).
  • Greater than zero: If this instance is true and obj is false or null.

Exception: It throws ArgumentException if obj is not an Boolean.



Example 1:

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// C# program to demonstrate the
// Boolean.CompareTo(Object) Method
using System;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        try {
  
            // Declaring and initializing value1
            bool value1 = true;
  
            // Declaring and initializing value2
            object value2 = true;
  
            // using CompareTo() method
            int status = value1.CompareTo(value2);
  
            // checking the status
            if (status > 0)
                Console.WriteLine("{0} is greater than {1}",
                                            value1, value2);
  
            else if (status < 0)
                Console.WriteLine("{0} is less than {1}",
                                         value1, value2);
            else
                Console.WriteLine("{0} is equal to {1}",
                                        value1, value2);
        }
  
        catch (ArgumentException e) 
        {
            Console.WriteLine("value2 must be Boolean");
            Console.Write("Exception Thrown: ");
            Console.Write("{0}", e.GetType(), e.Message);
        }
    }
}

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Output:

True is equal to True

Example 2: For ArgumentException

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// C# program to demonstrate the
// Boolean.CompareTo(Object) Method
using System;
using System.Globalization;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        try {
  
            // Declaring and initializing value1
            bool value1 = true;
  
            // Declaring and initializing value2
            object value2 = 53554;
  
            // using CompareTo() method
            int status = value1.CompareTo(value2);
  
            // checking the status
            if (status > 0)
                Console.WriteLine("{0} is greater than {1}",
                                            value1, value2);
  
            else if (status < 0)
                Console.WriteLine("{0} is less than {1}",
                                         value1, value2);
            else
                Console.WriteLine("{0} is equal to {1}",
                                        value1, value2);
        }
  
        catch (ArgumentException e) 
        {
            Console.WriteLine("value2 must be Boolean");
            Console.Write("Exception Thrown: ");
            Console.Write("{0}", e.GetType(), e.Message);
        }
    }
}

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Output:

value2 must be Boolean
Exception Thrown: System.ArgumentException

Reference:




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