class Int
{
private int x;
public Int(int x)
{
this.x=x;
}
public int intValue()
{
return this.x;
}
}
public class Javaaa
{
public static void main(String args[])
{
Object obj=new Int(100);
int x=((Int)obj).intValue; /请问这行操作是什么意思?向下转型吗?可是格式不太像/
System.out.println(x*x);
}
}