package day11Test1;
public class ChangFangXing extends XingZhuang{
public int chang;
public int kuan;
public double mianJi() {
return chang * kuan;
}
public double zhouChang() {
return (chang + kuan) * 2;
}
}
package day11Test1;
public class ChangFangXing extends XingZhuang{
public int chang;
public int kuan;
public double mianJi() {
return chang * kuan;
}
public double zhouChang() {
return (chang + kuan) * 2;
}
}