JuniorTheoryCommon

What does the program print?

Func<int, int> f = x => x + 1;
int a = f(5);
f = x => x * 10;
Console.WriteLine($"{a} {f(5)}");

6 50

Expecting 50 50: int a = f(5) runs the lambda once and keeps the number 6; a later change of f does not reach a.
Expecting a delegate variable to keep its first method: f = x => x * 10; replaces it, and the next call runs the new lambda.

What would the program print if its last line were Console.WriteLine(f(a));?
How would you declare a Func that takes two int values and returns a string?

JuniorTheoryCommon

Func<int, int> f = x => x + 1;
int a = f(5);
f = x => x * 10;
Console.WriteLine($"{a} {f(5)}");

6 50

Expecting 50 50: int a = f(5) runs the lambda once and keeps the number 6; a later change of f does not reach a.
Expecting a delegate variable to keep its first method: f = x => x * 10; replaces it, and the next call runs the new lambda.

What would the program print if its last line were Console.WriteLine(f(a));?
How would you declare a Func that takes two int values and returns a string?