Understanding Lambda expressions and delegates [closed]

Answer 1

Delegate is just pointer to function. Its just like a "variable", where you can save address to another function that will be called

    public class test {
    Action CallUserCode;

    public test(Action proc){
        CallUserCode = proc;
    }

    void foo(){
        int someValue = 0;
        //do some stuff that needs to call the user procedure
        CallUserCode(someValue);
    }
}

Lambda Expressions is too a delegate, which has simplified syntax and can "create" functions "inline". So the previous example would be called using lambda in following way.

void bar(){
    var t = new test(x => { /* do something with the value i get from foo */});
    t.foo();  //here function foo gets called, which will call 'do something' AND call my lambda expression
}