class XiyoujiRenwu{
float height,weight;
String head,ear;
void speak (String s) {
System.out.println(s);
}
}
public class Example4_1{
public static void main(String args[]) {
XiyoujiRenwu zhubajie;
zhubajie = new XiyoujiRenwu();
为什么height和weight时用float 而head era时用String? 还有void speak (String s )是什么意思啊
那void speak (String s)括号里为什么要写String s呢 s有代表什么意思啊