一問題是這樣的:先建立一個Animal的 class 是 abstract Animal有 move() 這個方法接著有 狗、人、鳥三個class 分別的移動是 "四只腳 "&"兩只腳" & "翅膀"都繼承自Animal繼承Animal的類別,必須改寫其move方法并顯示出每種動物的移動方式說明: Animal不存在的,他不會真的"move",也不能被實例化在建立出各種動物的Subcategory(子類別) 物件時,將這些物件放入同一個陣列中利用回圈方式,印出所有動的訊息我只寫的出部分功能 但無法把它完整執(zhí)行謝謝論壇的朋友們abstract class Animal{ public void move(){ System.out.println(); }} pulbic class Dog extends Animal{ public void move(){ System.out.println("四只腳"); }}public class Bird extends Animal { public void move(){ System.out.println(" 翅膀 "); }}public class Human extends Animal { public void move(){ System.out.println("兩只腳"); }}public class Main{ public static void main(String[] args){ Animal[] animals = new Animal[3]; animals[0] = new Bird(); animals[1] = new Human(); animals[2] = new dog(); for(int i=0;i<animals.length;i++){ animals[i].make.Sound(); } }}
4 回答
慕森卡
TA貢獻1806條經(jīng)驗 獲得超8個贊
public abstract class Animal {
public void move() {
System.out.println();
}
}
public class Bird extends Animal {
public void move() {
System.out.println( " 翅膀 " );
}
}
public class Dog extends Animal {
public void move() {
System.out.println( "四只腳" );
}
}
public class Human extends Animal {
public void move() {
System.out.println( "兩只腳" );
}
}
public class Main {
public static void main(String[] args) {
Animal[] animals = new Animal[3];
animals[0] = new Bird();
animals[1] = new Dog();
animals[2] = new Human();
for (Animal animal : animals)
animal.move();
}
}
運行截圖
臨摹微笑
TA貢獻1982條經(jīng)驗 獲得超2個贊
So, 問題是什么？你這代碼寫的也不對啊
for(int i=0;i<animals.length;i++){
animals[i].make.Sound();
}
完全沒看到你有什么地方聲明了make屬性??！你到底是要實現(xiàn)什么東西？
慕森王
TA貢獻1777條經(jīng)驗 獲得超3個贊
abstract class Animal{
public abstract void move();
}
class Dog extends Animal{
public void move(){
System.out.println("四只腳");
}
}
class Bird extends Animal {
public void move(){
System.out.println(" 翅膀 ");
}
}
class Human extends Animal {
public void move(){
System.out.println("兩只腳");
}
}
public class Main{
public static void main(String[] args){
Animal[] animals = new Animal[3];
animals[0] = new Bird();
animals[1] = new Human();
animals[2] = new Dog();
for(int i=0;i<animals.length;i++){
animals[i].move();
}
}
}
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