[英]How to call a function from another class to main class
我創建了另一個類(計算),並在其中創建了一個函數來檢查數字是偶數還是奇數。 我想在程序類中調用此函數,以便它可以檢查變量(結果)是偶數還是奇數。
我試圖調用該方法,如:CheckEvenOrOdd(result)。
class Program
{
static void Main(string[] args)
{
int number1;
int number2;
int result;
Console.Write("Enter a number: ");
number1 = int.Parse(Console.ReadLine());
Console.Write("Enter a second number: ");
number2 = int.Parse(Console.ReadLine());
result = number2 * number2;
Console.WriteLine($"The total is: {result} ");
Console.WriteLine("AND");
// i tried this here but it doesn't work: CheckEvenOrOdd(result)
}
}
class Calculations
{
public static void CheckEvenOrOdd(int numb)
{
if (numb % 2 == 0)
{
Console.WriteLine("The number is even");
}
else
{
Console.WriteLine("The number is odd ");
}
}
}
由於您的方法位於不同的類中,因此必須將其設置為靜態,然后先按類名然后按方法名進行調用。 如果不是靜態的,則必須先實例化該類的新實例,然后才能訪問其任何方法。
(順便說一下,您要將number2乘以number2,並在下面提供的代碼中也為您進行了更改)
靜態的:
class Program
{
static void Main(string[] args)
{
int number1;
int number2;
int result;
Console.Write("Enter a number: ");
number1 = int.Parse(Console.ReadLine());
Console.Write("Enter a second number: ");
number2 = int.Parse(Console.ReadLine());
result = number1 * number2;
Console.WriteLine($"The total is: {result} ");
Console.WriteLine("AND");
Calculations.CheckEvenOrOdd(result);
Console.ReadLine();
}
}
public static class Calculations
{
public static void CheckEvenOrOdd(int numb)
{
if (numb % 2 == 0)
{
Console.WriteLine("The number is even");
}
else
{
Console.WriteLine("The number is odd ");
}
}
}
不是靜態的:
class Program
{
static void Main(string[] args)
{
int number1;
int number2;
int result;
Console.Write("Enter a number: ");
number1 = int.Parse(Console.ReadLine());
Console.Write("Enter a second number: ");
number2 = int.Parse(Console.ReadLine());
result = number1 * number2;
Console.WriteLine($"The total is: {result} ");
Console.WriteLine("AND");
Calculations calc = new Calculations();
calc.CheckEvenOrOdd(result);
Console.ReadLine();
}
}
public class Calculations
{
public void CheckEvenOrOdd(int numb)
{
if (numb % 2 == 0)
{
Console.WriteLine("The number is even");
}
else
{
Console.WriteLine("The number is odd ");
}
}
}
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