public static SingleTest getInstance()
{
if (inst == null)
{
inst = new SingleTest(rd);
}
return(inst);
}
static void Main(string[] args)
{
Random r = new Random();
//일반적인 객체 생성
SingleTest test1 = new SingleTest(r);
Console.WriteLine(test1.getData());
Console.WriteLine(new SingleTest(r).getData());
Console.WriteLine(new SingleTest(r).getData());
//싱글톤
Console.WriteLine(SingleTest.getInstance().getData());
Console.WriteLine(SingleTest.getInstance().getData());
Console.WriteLine(SingleTest.getInstance().getData());
}