標題:
繼承 (三)
[打印本頁]
作者:
tonyh
時間:
2017-3-3 19:37
標題:
繼承 (三)
本帖最後由 tonyh 於 2019-9-2 18:32 編輯
練習在子類別中添加新的特性,並在子類別中覆寫(override)自父類別繼承下來的方法。
public class Ch70 {
public static void main(String[] args) {
Dog d1=new Dog("憨憨",2,1.28,"棕色");
Dog d2=new Dog("球球",1,1.35,"白色");
Cat c1=new Cat("咪咪",3,0.95);
d1.showProfile();
d1.makeSound(2);
d2.showProfile();
d2.makeSound(3);
c1.showProfile();
c1.makeSound(5);
}
}
class Animal
{
String name;
int age;
double weight;
Animal(String n,int a,double w)
{
name=n;
age=a;
weight=w;
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤.");
}
}
class Dog extends Animal
{
String color;
Dog(String n,int a,double w,String c)
{
super(n,a,w);
color=c;
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("汪~");
System.out.println();
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤,毛色為"+color+".");
}
}
class Cat extends Animal
{
Cat(String n,int a,double w)
{
super(n,a,w);
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("喵~");
System.out.println();
}
}
複製代碼
作者:
洪振庭
時間:
2017-3-3 20:12
public class Ch70 {
public static void main(String[] args) {
Dog d1=new Dog("憨憨",2,1.28,"棕色");
Dog d2=new Dog("球球",1,1.35,"白色");
Cat c1=new Cat("咪咪",3,0.95);
d1.showProfile();
d1.makeSound(2);
d2.showProfile();
d2.makeSound(3);
c1.showProfile();
c1.makeSound(5);
}
}
class Animal{
String name;
int age;
double weight;
Animal(String n, int a, double w)
{
name=n;
age=a;
weight=w;
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤.");
}
}
class Dog extends Animal
{
String c;
Dog(String n, int a, double w,String c)
{
super(n,a,w);
this.c=c;
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("汪~");
System.out.println();
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤,毛色為"+c+".");
}
}
class Cat extends Animal
{
Cat(String n, int a, double w)
{
super(n,a,w);
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("喵~");
System.out.println();
}
}
複製代碼
作者:
黃璽安
時間:
2017-3-3 20:13
public class Ch70 {
public static void main(String[] args) {
Dog d1=new Dog("憨憨",2,1.28,"棕色");
Dog d2=new Dog("球球",1,1.35,"白色");
Cat c1=new Cat("咪咪",3,0.95);
d1.showProfile();
d1.makeSound(2);
d2.showProfile();
d2.makeSound(3);
c1.showProfile();
c1.makeSound(5);
}
}
class Animal{
String name;
int age;
double weight;
Animal(String n, int a, double w)
{
name=n;
age=a;
weight=w;
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤.");
}
}
class Dog extends Animal
{
String color;
Dog(String n, int a, double w, String c)
{
super(n,a,w);
color=c;
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("汪~");
System.out.println();
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤,毛色為"+color+".");
}
}
class Cat extends Animal
{
Cat(String n, int a, double w)
{
super(n,a,w);
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("喵~");
System.out.println();
}
}
複製代碼
作者:
李知易
時間:
2017-3-3 20:16
public class Ch70 {
public static void main(String[] args) {
Dog d1=new Dog("憨憨",2,1.28,"棕");
Dog d2=new Dog("球球",1,1.35,"白");
Cat c1=new Cat("咪咪",3,0.95);
d1.showProfile();
d1.makeSound(2);
d2.showProfile();
d2.makeSound(3);
c1.showProfile();
c1.makeSound(5);
}
}
class Animal{
String name;
int age;
double weight;
Animal(String n, int a, double w)
{
name=n;
age=a;
weight=w;
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤.");
}
}
class Dog extends Animal
{
String color;
Dog(String n, int a, double w,String c)
{
super(n,a,w);
color=c;
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("汪~");
System.out.println();
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤,毛色為"+color+"色。");
}
}
class Cat extends Animal
{
Cat(String n, int a, double w)
{
super(n,a,w);
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("喵~");
System.out.println();
}
}
複製代碼
作者:
曾挺桂
時間:
2017-3-3 20:31
public class Ch70 {
public static void main(String[] args) {
Dog d1=new Dog("憨憨",2,1.28,"棕色");
Dog d2=new Dog("球球",1,1.35,"白色");
Cat c1=new Cat("咪咪",3,0.95);
d1.showProfile();
d1.makeSound(2);
d2.showProfile();
d2.makeSound(3);
c1.showProfile();
c1.makeSound(5);
}
}
class Animal
{
String name;
int age;
double weight;
Animal(String n,int a,double w)
{
name=n;
age=a;
weight=w;
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤.");
}
}
class Dog extends Animal
{
String color;
Dog(String n,int a,double w,String c)
{
super(n,a,w);
color=c;
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("汪~");
System.out.println();
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤,毛色為"+color+".");
}
}
class Cat extends Animal
{
Cat(String n,int a,double w)
{
super(n,a,w);
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("喵~");
System.out.println();
}
}
複製代碼
作者:
梁和雋
時間:
2017-3-3 20:33
public class Ch70 {
public static void main(String[] args) {
Dog d1=new Dog("憨憨",2,1.28,"棕色");
Dog d2=new Dog("球球",1,1.35,"白色");
Cat c1=new Cat("咪咪",3,0.95);
d1.showProfile();
d1.makeSound(2);
d2.showProfile();
d2.makeSound(3);
c1.showProfile();
c1.makeSound(5);
}
}
class Animal
{
String name;
int age;
double weight;
Animal(String n,int a,double w)
{
name=n;
age=a;
weight=w;
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤.");
}
}
class Dog extends Animal
{
String color;
Dog(String n,int a,double w,String c)
{
super(n,a,w);
color=c;
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("汪~");
System.out.println();
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤,毛色為"+color+".");
}
}
class Cat extends Animal
{
Cat(String n,int a,double w)
{
super(n,a,w);
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("喵~");
System.out.println();
}
}
複製代碼
作者:
沈子耕
時間:
2017-3-3 20:44
public class Ch70 {
public static void main(String[] args) {
Dog d1=new Dog("憨憨",2,1.28,"棕色");
Dog d2=new Dog("球球",1,1.35,"白色");
Cat c1=new Cat("咪咪",3,0.95);
d1.showProfile();
d1.makeSound(2);
d2.showProfile();
d2.makeSound(3);
c1.showProfile();
c1.makeSound(5);
}
}
class Animal
{
String name;
int age;
double weight;
Animal(String n,int a,double w)
{
name=n;
age=a;
weight=w;
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤.");
}
}
class Dog extends Animal
{
String color;
Dog(String n,int a,double w,String c)
{
super(n,a,w);
color=c;
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("汪~");
System.out.println();
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤,毛色為"+color+".");
}
}
class Cat extends Animal
{
Cat(String n,int a,double w)
{
super(n,a,w);
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("喵~");
System.out.println();
}
}
複製代碼
作者:
陳思惟
時間:
2017-3-3 20:48
public class Ch70 {
public static void main(String[] args) {
Dog d1=new Dog("憨憨",2,1.28,"棕色");
Dog d2=new Dog("球球",1,1.35,"白色");
Cat c1=new Cat("咪咪",3,0.95);
d1.showProfile();
d1.makeSound(2);
d2.showProfile();
d2.makeSound(3);
c1.showProfile();
c1.makeSound(5);
}
}
class Animal
{
String name;
int age;
double weight;
Animal(String n,int a,double w)
{
name=n;
age=a;
weight=w;
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤.");
}
}
class Dog extends Animal
{
String color;
Dog(String n,int a,double w,String c)
{
super(n,a,w);
color=c;
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("汪~");
System.out.println();
}
void showProfile()
{
System.out.println(name+"今年"+age+"歲,體重"+weight+"公斤,毛色為"+color+".");
}
}
class Cat extends Animal
{
Cat(String n,int a,double w)
{
super(n,a,w);
}
void makeSound(int x)
{
for(int i=1; i<=x; i++)
System.out.print("喵~");
System.out.println();
}
}
複製代碼
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