C＃でDecimal.Round（）メソッド

C＃でDecimal.Round（）メソッドは、小数点以下の最も近い整数に値または指定された数を丸めるために使用される。

構文

以下は構文です-

public static decimal Round (decimal d);
public static decimal Round (decimal d, int decimals);
public static decimal Round (decimal d, MidpointRounding mode);
public static decimal Round (decimal d, int decimals, MidpointRounding mode);

例

私たちは今Decimal.Round（）メソッドを実装するための例を見てみましょう -

using System;
public class Demo {
   public static void Main(){
      Decimal val1 = 9.00m;
      Decimal val2 = 15.29m;
      Decimal val3 = 394949845.14245M;
      Console.WriteLine("Decimal 1 = "+val1);
      Console.WriteLine("Decimal 2 = "+val2);
      Console.WriteLine("Decimal 2 = "+val2);
      Console.WriteLine("Remainder = "+(Decimal.Remainder(val1,val2)));
      Console.WriteLine("Value 1 (Rounded) = "+(Decimal.Round(val1)));
      Console.WriteLine("Value 2 (Rounded) = "+(Decimal.Round(val2)));
      Console.WriteLine("Value 3 (Rounded) = "+(Decimal.Round(val3)));
   }
}

出力

これにより、次の出力が生成されます-

Decimal 1 = 9.00
Decimal 2 = 15.29
Decimal 2 = 15.29
Remainder = 9.00
Value 1 (Rounded) = 9
Value 2 (Rounded) = 15
Value 3 (Rounded) = 394949845

例

私たちは今Decimal.Round（）メソッドを実装する別の例を見てみましょう -

using System;
public class Demo {
   public static void Main(){
      Decimal val1 = 6.59m;
      Decimal val2 = 30.12m;
      Decimal val3 = 6946649845.25245M;
      Console.WriteLine("Decimal 1 = "+val1);
      Console.WriteLine("Decimal 2 = "+val2);
      Console.WriteLine("Decimal 2 = "+val2);
      Console.WriteLine("Remainder = "+(Decimal.Remainder(val1,val2)));
      Console.WriteLine("Value 1 (Rounded) = "+(Decimal.Round(val1,1)));
      Console.WriteLine("Value 2 (Rounded) = "+(Decimal.Round(val2,1)));
      Console.WriteLine("Value 3 (Rounded) = "+(Decimal.Round(val3,2)));
   }
}

出力

これにより、次の出力が生成されます-

Decimal 1 = 6.59
Decimal 2 = 30.12
Decimal 2 = 30.12
Remainder = 6.59
Value 1 (Rounded) = 6.6
Value 2 (Rounded) = 30.1
Value 3 (Rounded) = 6946649845.25