这段小代码我感觉没有错，但是为什么运行不出来呢？

大家帮我看看是哪里出了问题呀！ 谢谢了。

public class People
{
float hight,weight;
String head,ear,mouth;
void speak(String s)
{
System.out.println(s);
}
}
class A
{
public static void main(String args[])
{
People zhubajie;
zhubajie=new People();
zhubajie.weight=200f;
zhubajie.hight=1.70F;
zhubajie.head="大头";
zhubajie.ear="两只大耳朵";
zhubajie.mouth="一只大嘴";
System.out.println("重量"+zhubajie.weight+"身高"

+zhubajie.hight);
System.out.println

(zhubajie.head+zhubajie.mouth+zhubajie.ear);
zhubajie.speak("师傅，咱们别去西天了，改去月宫吧");
}
}