Skip to content
Related Articles

Related Articles

Int32.CompareTo Method in C# with Examples
  • Last Updated : 04 Apr, 2019
GeeksforGeeks - Summer Carnival Banner

Int32.CompareTo Method is used to compare the current instance to a specified object or Int32 and returns a sign of their relative values. There are 2 methods in the overload list of this method as follows:

  • CompareTo(Int32) Method
  • CompareTo(Object) Method

Int32.CompareTo(Int32) Method

This method is used to compare the current instance to a specified 32-bit signed integer and returns a sign of their relative values.

Syntax:

public int CompareTo (int value);

Here, it takes integer to compare.



Return Value: It returns a 32-bit signed number indicating the relative values of current instance and value parameter as follows:

  • Less than Zero: if Current Instance < value
  • Zero: if Current Instance = value
  • Greater than Zero: if Current Instance > value

Below programs illustrate the use of the above-discussed method:

Example 1:




// C# program to demonstrate the
// Int32.CompareTo(Int32) Method
using System;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
  
        // Declaring and initializing value1
        int value1 = 10;
  
        // Declaring and initializing value2
        int value2 = 20;
  
        // 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);
    }
}
Output:
10 is less than 20

Example 2:




// C# program to demonstrate the
// Int32.CompareTo(Int32) Method
using System;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        // calling get() method
        get(5, 7);
        get(3025, 3025);
        get(10, 20);
        get(7, -12);
    }
  
    // defining get() method
    public static void get(int value1,
                           int value2)
    {
  
        // using the 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);
    }
}
Output:
5 is less than 7
3025 is equal to 3025
10 is less than 20
7 is greater than -12

Int32.CompareTo(Object) Method

This method is used to compare the current instance to a specified object and returns a sign of their relative values.

Syntax:



public int CompareTo (object value);

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

Return Value: It returns a 32-bit signed number indicating the relative values of current instance and value parameter as follows:

  • Less than Zero: if Current Instance < value
  • Zero: if Current Instance = value
  • Greater than Zero: if Current Instance > value or value is null.

Exception: It throws ArgumentException if value is not an Int32.

Below programs illustrate the use of the above-discussed method:

Example 1:




// C# program to demonstrate the
// Int32.CompareTo(Object) Method
using System;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        try {
  
            // Declaring and initializing value1
            int value1 = 10;
  
            // Declaring and initializing value2
            object value2 = 562587;
  
            // 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 Int32");
            Console.Write("Exception Thrown: ");
            Console.Write("{0}", e.GetType(), e.Message);
        }
    }
}
Output:
10 is less than 562587

Example 2: For ArgumentException




// C# program to demonstrate the
// Int32.CompareTo(object) Method
using System;
using System.Globalization;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        try {
  
            // Declaring and initializing value1
            int value1 = 10;
  
            // Declaring and initializing value2
            object value2 = 9856745963;
  
            // 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 Int32");
            Console.Write("Exception Thrown: ");
            Console.Write("{0}", e.GetType(), e.Message);
        }
    }
}
Output:
value2 must be Int32
Exception Thrown: System.ArgumentException

Reference:

Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready.

My Personal Notes arrow_drop_up
Recommended Articles
Page :