using System;
using System.Collections.Generic;
using System.Text;
using System.Collections;
struct MyPoint {
public int x, y;
}
class Program {
public static void UseThisObject(object o) {
Console.WriteLine("Type of param: {0}", o.GetType());
Console.WriteLine("Value of o is: {0}", o);
}
public static void BoxAndUnboxInts() {
ArrayList myInts = new ArrayList();
myInts.Add(88);
myInts.Add(3);
myInts.Add(9764);
int firstItem = (int)myInts[0];
Console.WriteLine("First item is {0}", firstItem);
}
public static void UseBoxedMyPoint(object o) {
if (o is MyPoint) {
MyPoint p = (MyPoint)o;
Console.WriteLine("{0}, {1}", p.x, p.y);
} else
Console.WriteLine("You did not send a MyPoint.");
}
static void Main(string[] args) {
int myInt = 99;
UseThisObject(myInt);
BoxAndUnboxInts();
MyPoint p;
p.x = 10;
p.y = 20;
UseBoxedMyPoint(p);
UseBoxedMyPoint(1);
}
}
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