# Decimal.Compare() Method in C#

This method is used to compare two specified Decimal values.

Syntax: public static int Compare (decimal a1, decimal a2);

Parameters:
a1:This parameter specifies the first value to compare.
a2:This parameter specifies the second value to compare.

Return Value: It returns a signed number indicating the relative values of a1 & a2.

• If the value is less than zero, it means a1 is less than a2.
• If the value is greater than zero, it means a1 is greater than a2.
• If the value is zero, it means a1 is equal to a2.

Below programs illustrate the use of Decimal.Compare(Decimal, Decimal) Method

Example 1: When a1 is greater than a2.

 `// C# program to demonstrate the ` `// Decimal.Compare(Decimal,  ` `// Decimal) Method ` `using` `System; ` `using` `System.Globalization; ` ` `  `class` `GFG { ` ` `  `    ``// Main Method ` `    ``public` `static` `void` `Main() ` `    ``{ ` ` `  `        ``// Declaring the decimal variables ` `        ``Decimal a1 = 4; ` `        ``Decimal a2 = 3; ` ` `  `        ``// comparing the two Decimal value ` `        ``// using Compare() method; ` `        ``Decimal value = Decimal.Compare(a1, a2); ` ` `  `        ``// Display the compare value ` `        ``Console.WriteLine(``"The compare value is : {0}"``, ` `                                                ``value); ` `    ``} ` `} `

Output:

```The compare value is : 1
```

Example 2: When a1 is less than a2.

 `// C# program to demonstrate the ` `// Decimal.Compare(Decimal, ` `// Decimal) Method ` `using` `System; ` `using` `System.Globalization; ` ` `  `class` `GFG { ` ` `  `    ``// Main Method ` `    ``public` `static` `void` `Main() ` `    ``{ ` ` `  `        ``// Declaring the decimal variables ` `        ``Decimal a1 = 1; ` `        ``Decimal a2 = 9; ` ` `  `        ``// comparing the two Decimal value ` `        ``// using Compare() method; ` `        ``Decimal value = Decimal.Compare(a1, a2); ` ` `  `        ``// Display the compare value ` `        ``Console.WriteLine(``"The compare value is : {0}"``, ` `                                                ``value); ` `    ``} ` `} `

Output:

```The compare value is : -1
```

Example 3: When a1 is equals to a2.

 `// C# program to demonstrate the ` `// Decimal.Compare(Decimal, ` `// Decimal) Method ` `using` `System; ` `using` `System.Globalization; ` ` `  `class` `GFG { ` ` `  `    ``// Main Method ` `    ``public` `static` `void` `Main() ` `    ``{ ` ` `  `        ``// Declaring the decimal variables ` `        ``Decimal a1 = 5; ` `        ``Decimal a2 = 5; ` ` `  `        ``// comparing the two Decimal value ` `        ``// using Compare() method; ` `        ``Decimal value = Decimal.Compare(a1, a2); ` ` `  `        ``// Display the compare value ` `        ``Console.WriteLine(``"The compare value is : {0}"``, ` `                                                ``value); ` `    ``} ` `} `

Output:

```The compare value is : 0
```

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