public static Earth getInstance()
{
if (Earth.own == null)
{
Earth.own = new Earth();
Earth.own.creator = "神";
}
return(Earth.own);
}
public static void Main(string[] args)
{
Earth e1 = Earth.getInstance();
Console.WriteLine("この星(e1)は誰が作ったのか?: {0}", e1.getCreatorName());
Earth e2 = Earth.getInstance();
Console.WriteLine("この星(e2)は誰が作ったのか?: {0}", e2.getCreatorName());
e1.setCreatorName("俺");
Console.WriteLine("この星(e1)は誰が作ったのか?: {0}", e1.getCreatorName());
Console.WriteLine("この星(e2)は誰が作ったのか?: {0}", e2.getCreatorName());
}