不知道哪里錯了，請大神幫忙指出
public class jicheng {
?? ?public static void main(String args[]){
?? ??? ?rabbit b1=new rabbit("兔子");
?? ??? ?tiger b2=new tiger("老虎");
?? ??? ?b1.print();
?? ??? ?b1.eat();
?? ??? ?b1.sleep;
?? ??? ?System.out.println("");
?? ??? ?b2.print();
?? ??? ?b2.eat();
?? ??? ?b2.sleep();
?? ?}
}
class animal{
?? ?protected String name;
?? ?public void eat(){
?? ??? ?System.out.println("吃啊");
?? ?}
?? ?public void sleep(){
?? ??? ?System.out.println("睡覺");
?? ?}
}
class rabbit extends animal{
?? ?public rabbit(String name){
?? ??? ?this.name=name;
?? ?}
?? ?public void eat(){
?? ??? ?System.out.println("吃草");
?? ?}
?? ?public void sleep(){
?? ??? ?System.out.println("睡覺");
?? ?}
}
class tiger extends animal{
?? ?public tiger(String name){
?? ??? ?this.name=name;
?? ?}
?? ?public void eat(){
?? ??? ?System.out.println("吃肉");
?? ?}
?? ?public void sleep(){
?? ??? ?System.out.println("睡覺");
?? ?}
}
?? ?
2016-05-27
public?class?jicheng?{ ????public?static?void?main(String?args[]){ ????????rabbit?b1=new?rabbit("兔子"); ????????tiger?b2=new?tiger("老虎"); ????????//要打印出動物名字，需要獲取name ????????System.out.println(b1.name); ????????b1.eat(); ????????b1.sleep(); ????????System.out.println(""); ????????System.out.println(b2.name); ????????b2.eat(); ????????b2.sleep(); ????} } class?animal{ ????protected?String?name; ????public?void?eat(){ ????????System.out.println("吃啊"); ????} ????public?void?sleep(){ ????????System.out.println("睡覺"); ????} } class?rabbit?extends?animal{ ????public?rabbit(String?name){ ????????this.name=name; ????} ????public?void?eat(){ ????????System.out.println("吃草"); ????} ????public?void?sleep(){ ????????System.out.println("睡覺"); ????} } class?tiger?extends?animal{ ????public?tiger(String?name){ ????????this.name=name; ????} ????public?void?eat(){ ????????System.out.println("吃肉"); ????} ????public?void?sleep(){ ????????System.out.println("睡覺"); ????} }2016-05-28
哦哦，對了額，謝謝啊
2016-05-27
輸出的結果是兔子吃草睡覺，老虎吃肉睡覺，可是運行結果不對，把這個b1.print();刪除后也還是不行，是怎么回事啊，求大神解答
2016-05-27
package guqingtong;
public class HelloWorld {
? ? public static void main(String args[]){
? ? ? ? rabbit b1=new rabbit("兔子");
? ? ? ? tiger b2=new tiger("老虎");
? ? ? ? ?
? ? ? ? b1.eat();
? ? ? ? b1.sleep();
? ? ? ? System.out.println("");
? ? ??
? ? ? ? b2.eat();
? ? ? ? b2.sleep();
? ? }
}
class animal{
? ? protected String name;
? ? public void eat(){
? ? ? ? System.out.println("吃啊");
? ? }
? ? public void sleep(){
? ? ? ? System.out.println("睡覺");
? ? }
}
class rabbit extends animal{
? ? public rabbit(String name){
? ? ? ? this.name=name;
? ? }
? ? public void eat(){
? ? ? ? System.out.println("吃草");
? ? }
? ? public void sleep(){
? ? ? ? System.out.println("睡覺");
? ? }
}
class tiger extends animal{
? ? public tiger(String name){
? ? ? ? this.name=name;
? ? }
? ? public void eat(){
? ? ? ? System.out.println("吃肉");
? ? }
? ? public void sleep(){
? ? ? ? System.out.println("睡覺");
? ? }
}
?//b1.print();這個方法你沒有定義啊 ，怎么調用