Using casts in an expression. : Data Type Cast « Data Type « C# / CSharp Tutorial






  1. C# / CSharp Tutorial
  2. Data Type
  3. Data Type Cast
using System;  
  
class Example {     
  public static void Main() {     
    double n;  
  
     for(n = 1.0; n <= 10; n++) {  
       Console.WriteLine("The square root of {0} is {1}",  
                         n, Math.Sqrt(n));  
  
       Console.WriteLine("Whole number part: {0}" ,   
                         (int) Math.Sqrt(n));  
   
       Console.WriteLine("Fractional part: {0}",   
                         Math.Sqrt(n) - (int) Math.Sqrt(n) );  
       Console.WriteLine(); 
    }  
  }     
}

The square root of 1 is 1
Whole number part: 1
Fractional part: 0

The square root of 2 is 1.4142135623731
Whole number part: 1
Fractional part: 0.414213562373095

The square root of 3 is 1.73205080756888
Whole number part: 1
Fractional part: 0.732050807568877

The square root of 4 is 2
Whole number part: 2
Fractional part: 0

The square root of 5 is 2.23606797749979
Whole number part: 2
Fractional part: 0.23606797749979

The square root of 6 is 2.44948974278318
Whole number part: 2
Fractional part: 0.449489742783178

The square root of 7 is 2.64575131106459
Whole number part: 2
Fractional part: 0.645751311064591

The square root of 8 is 2.82842712474619
Whole number part: 2
Fractional part: 0.82842712474619

The square root of 9 is 3
Whole number part: 3
Fractional part: 0

The square root of 10 is 3.16227766016838
Whole number part: 3
Fractional part: 0.16227766016838




2.50.Data Type Cast
2.50.1.Type Conversion in Expressions
2.50.2.Automatic Conversions
2.50.3.The use of the cast operator: how information loss can occur when explicitly converting a variable of one type to another
2.50.4.Automatic conversion from long to double
2.50.5.Cast an int into a double
2.50.6.Cast an int into a byte, no data lost
2.50.7.Cast an int into a byte, data lost
2.50.8.Cast a uint into a short, no data lost
2.50.9.Cast a uint into a short, data lost
2.50.10.Cast a long into a uint, no data lost
2.50.11.cast a long into a uint, data lost
2.50.12.Cast an int into a char
2.50.13.Cast byte back for byte calculation
2.50.14.Using casts in an expression.
2.50.15.Conversions of numeric types: checked and unchecked conversions
2.50.16.Conversions of numeric types: checked conversions block
2.50.17.Using checked and unchecked.
2.50.18.Using checked and unchecked with statement blocks.
2.50.19.Most significant bits lost
2.50.20.Raises the OverflowException exception
2.50.21.Get Type Code after casting
2.50.22.Narrow With Convert
2.50.23.Narrowing int to byte
2.50.24.Overflow Check for data type converting
2.50.25.Not Using the Cast Operator for an Implicit Cast
2.50.26.Using the Cast Operator for an Implicit Cast
2.50.27.Data Conversion
2.50.28.implicit type conversions supported in C#.