package demo02;
public class cell {
Stringbrand ;
? ? public void xudian(){
System.out.println(brand+"電池在蓄電");
? ? }
}
package demo02;
public class testcell {
public static void main(String[] args) {
cell dianchi =new cell();
? ? ? ? dianchi.brand="南孚";
? ? ? ? dianchi.xudian();
? ? }
}
