作业-继承6

package T092205;

public class Juxing {
    private double chang;
    private double kuan;
    public double getChang() {
        return chang;
    }
    public void setChang(double chang) {
        this.chang = chang;
    }
    public double getKuan() {
        return kuan;
    }
    public void setKuan(double kuan) {
        this.kuan = kuan;
    }
    public double area(){
        return chang*kuan;
    }
}



package T092205;

public class ChangFangTi extends Juxing {
    private double gao;
    public double getGao() {
        return gao;
    }
    public void setGao(double gao) {
        this.gao = gao;
    }
    public double tiji(){
        return area()*gao;
    }
}



package T092205;

public class Test {
    public static void main(String[] args){
        ChangFangTi a=new ChangFangTi();
        a.setChang(30);
        a.setKuan(10);
        a.setGao(15);
        System.out.println("长方体的底面积是："+a.area());
        System.out.println("长方体的体积是："+a.tiji());
    }
}