开始学习了，强迫自己，下面先熟悉一个小程序
code:
public class People {
float hight,weight;
String head,ear,mouth;
void speak(String s){
System.out.println(s);
}
}
code:
class A extends People
{
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");
}
}
运行结果：
quote:
重量200.0,身高1.7
大头,一只大嘴,两只大耳朵
师傅，咱们别去西天了，改去月宫吧