java编程题

}

}else if(high

System.out.println(\最高分：\

high=mysqlc;

public void lowc(){ }

int low; low=javac; if(low>androidc){

low=androidc;

}else if(low>mysqlc){ }

System.out.println(\最低分：\

low=mysqlc;

public String getName() { }

public void setName(String name) { }

public int getJavac() {

this.name = name; return name;

}

}

return javac;

public void setJavac(int javac) { }

public int getAndroidc() { }

public void setAndroidc(int androidc) { }

public int getMysqlc() { }

return mysqlc;

this.androidc = androidc; return androidc; this.javac = javac;

public void setMysqlc(int mysqlc) { }

this.mysqlc = mysqlc;

JavaSE初级—第十五单元 JAVA的特性之继承 （一） 1：定义一个图形类和（子类）圆形类、矩形类 图像类：有求周长和求面积和显示图形信息的功能。

圆形类：包含圆心和半径，重写求周长和求面积的方法 矩形类：包含长和宽，重写求周长和求面积的方法 public class TestGrapher{ public static void main(String[] args) { Grapher c1=new Rectangle(3.0, 2.0, 3, 2);

c1.show();

System.out.println(\矩形的周

长:c=\矩形的面积：s=\ Grapher c2=new Circle(1.0, 2.0, 5.0);

c2.show();

System.out.println(\圆的周长：c=\圆的面积：s=\ }

}

abstract class Grapher{ abstract double getC(); abstract double getS(); abstract void show(); }

class Rectangle extends Grapher{

double l;

double d; double x; double y;

public Rectangle(double l, double d, double x, double y) {

@Override double getC() { }

@Override double getS() { }

@Override

// TODO Auto-generated method stub return l*d;

// TODO Auto-generated method stub return 2*(l+d); }

super(); this.l = l; this.d = d; this.x = x; this.y = y;