import java.util.*;
class pen
{
private int length;
private char color;
private int price;
public pen(int a,char b,int c)
{
length=a;
color=b;
price=c;
}
void write()
{
System.out.println("pen");
}
void getColor()
{
System.out.println("颜色是"+color+'色');
}
void getPrice()
{
System.out.println("请输入价格");
Scanner input=new Scanner(System.in);
int d=input.nextInt();
price=d;
System.out.println("价格是"+price);
}
}
class pencile extends pen
{
int hard;
public pencile(int a,char b,int c,int e){
super(a,b,c);
this.hard=e;
}
void getHard(){
System.out.println("硬度是"+hard);
}
}
public class ch1
{
public static void main(String[] args)
{
pen aPen=new pen(15,'红',4);
pencile aPencile=new pencile(5,'红',4,2);
aPen.getPrice();
aPen.write();
aPen.getColor();
aPencile.getHard();
}
}
JAVA类的继承初探
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转载自blog.csdn.net/dyb1296/article/details/50954777
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