菜鸟问题!输出显示的菜鸟问题,请指点~~

[austinyu]

按书本上的例题来写出,有一个MAGICHAT类,RABBIT类,源代码如下
MAGICHAT 类的
public class MagicHat
{
//declare instance variable !!
private String hatname;
private Rabbit rabbits[];

//object construction create!
public MagicHat(String newname)
{
hatname=newname;
//create number > 1
int num;
do
{
num=(int)(10*Math.random());
}while(num>0);
//create number of rabbits
rabbits=new Rabbit[num];
for(int i=0;i<rabbits.length;i++)
{
rabbits[i]=new Rabbit();
}
}

//show every MagicHat name and rabbits
public String toString()
{
String showall=this.hatname+"\n";

for(int i=0;i<this.rabbits.length;i++)
{
showall+=this.rabbits[i]+" ";
}
return showall;
}
}

RABBIT类的
public class Rabbit
{
//delcare static variable and instance variable !!
private static String[] rabbitsname={"jake","boyz","CATS","MONKEY"};
private static int[] namecount=new int[rabbitsname.length];

//declare instance variable
private String name;

//object construction method !!
public Rabbit()
{
//create a number from 0 -- 3
int index;
do
{
index=(int)(10*Math.random());
}while(index >=0 && index <4);
name=rabbitsname[index];
}

//show the name !!
public String toString()
{
return name;
}
}

执行的
public class startHat
{
public static void main(String[] args)
{
//create an magichat object!
MagicHat firsthat=new MagicHat("C.I.A");
System.out.println(firsthat);
System.out.println(new MagicHat("BIA"));
}
}

我想要创建一个MAGICHAT对象后,显示这个对象的名字并且显示这个对象所包含的RABBIT对象,
但执行后只能显示MAGICHAT对象名字,能力有限,想了很久也没想到,我是哪里出错呢?请各位指教!

[qybao]

public class MagicHat
{
//declare instance variable !!
private String hatname;
private Rabbit rabbits[];

//object construction create!
public MagicHat(String newname)
{
hatname=newname;
//create number > 1
int num;
//do
//{
// num=(int)(10*Math.random());
//}while(num>0); //这个条件是num<=0结束循环，那就没意义了
while(true) {
num=(int)(10*Math.random());
if (num > 0) {
break;
}
}
//create number of rabbits
rabbits=new Rabbit[num];
for(int i=0;i<rabbits.length;i++)
{
rabbits[i]=new Rabbit();
}
}

//show every MagicHat name and rabbits
public String toString()
{
String showall=this.hatname+"\n";

for(int i=0;i<this.rabbits.length;i++)
{
showall+=this.rabbits[i]+" ";
}
return showall;
}
}

RABBIT类的
public class Rabbit
{
//delcare static variable and instance variable !!
private static String[] rabbitsname={"jake","boyz","CATS","MONKEY"};
private static int[] namecount=new int[rabbitsname.length];

//declare instance variable
private String name;

//object construction method !!
public Rabbit()
{
//create a number from 0 -- 3
int index;
//do
//{
// index=(int)(10*Math.random());
//}while(index >=0 && index <4); //这个条件也没意思，index>4时结束循环
while (true) {
index=(int)(10*Math.random());
if (index<4 and index>=0) {
break;
}
}
name=rabbitsname[index];
}

//show the name !!
public String toString()
{
return name;
}
}

执行的
public class startHat
{
public static void main(String[] args)
{
//create an magichat object!
MagicHat firsthat=new MagicHat("C.I.A");
System.out.println(firsthat);
System.out.println(new MagicHat("BIA"));
}
}