public class EqualsDemo
{
public static void main(String[] args)
{
new EqualsDemo(3L);
}
public EqualsDemo(long x)
{
this((int)x);
System.out.println("a");
}
public EqualsDemo(int x)
{
this();
System.out.println("b");
}
public EqualsDemo()
{
System.out.println("c");
}
}
答案是cba
但不懂啊……