cute倩影O_o
2016-10-09 17:25
public class dog { int age =5; String name="乐乐"; String color="白色"; int weight =10; String sex="female"; void eat() { } void look() { } void yao() { } void run() { } void swim() { } {System.out.println("beef"); System.out.println("person"); System.out.println("旺旺~~~~~"); System.out.println("quick"); System.out.println("会"); } public class dog1 extends dog {public dog1(){ super(); } public class dog2 extends dog {public dog2(){ this(); } }
public static void main (String args[]) { dog dog=new dog(); System.out.println("姓名:"+dog.name); System.out.println("年龄:"+dog.age); System.out.println("颜色:"+dog.color); System.out.println("体重:"+dog.weight); System.out.println("性别:"+dog.sex); dog.eat(); dog.look(); dog.yao(); dog.run(); dog.swim();}
public class Dog { int age =5; String name="乐乐"; String color="白色"; int weight =10; String sex="female"; void eat() { } void look() { } void yao() { } void run() { } void swim() { } { System.out.println("beef"); System.out.println("person"); System.out.println("旺旺~~~~~"); System.out.println("quick"); System.out.println("会"); } class dog1 extends Dog{public dog1(){ super(); } } class dog2 extends Dog{public dog2(){ super(); } } public static void main(String args[]){ Dog dog=new Dog(); System.out.println("姓名:"+dog.name); System.out.println("年龄:"+dog.age); System.out.println("颜色:"+dog.color); System.out.println("体重:"+dog.weight); System.out.println("性别:"+dog.sex); dog.eat(); dog.look(); dog.yao(); dog.run(); dog.swim(); } }
public class Test {
int age =5;
String name="乐乐";
String color="白色";
int weight =10;
String sex="female";
void eat() {
System.out.println("beef");
}
void look() {
System.out.println("person");
}
void yao() {
System.out.println("旺旺~~~~~");
}
void run() {
System.out.println("quick");
}
void swim() {
System.out.println("会");
}
public class dog1 extends Test {
public dog1(){ super();
}
}
public class dog2 extends Test {
public dog2(){
super();
}
}
public static void main (String args[]) {
Test dog=new Test();
System.out.println("姓名:"+dog.name);
System.out.println("年龄:"+dog.age);
System.out.println("颜色:"+dog.color);
System.out.println("体重:"+dog.weight);
System.out.println("性别:"+dog.sex);
dog.eat();
dog.look();
dog.yao();
dog.run();
dog.swim();
}
}
不要在同一个java文件里写好几个类,public class一个类中只能出现一次。还有你括号丢了很多啊。主类就是main方法所在的类。你最后丢了个括号,只剩下方法,当然没类了。
同一个文件里,只能有一个类为public,另定义的另两个子类,不能加public。
public class Dog {
public static void main(String args[]) {
Dog dog = new Dog();
System.out.println("姓名:" + dog.name);
System.out.println("年龄:" + dog.age);
System.out.println("颜色:" + dog.color);
System.out.println("体重:" + dog.weight);
System.out.println("性别:" + dog.sex);
dog.eat();
dog.look();
dog.yao();
dog.run();
dog.swim();
}
int age = 5;
String name = "乐乐";
String color = "白色";
int weight = 10;
String sex = "female";
void eat() {
}
void look() {
}
void yao() {
}
void run() {
}
void swim() {
}
{
System.out.println("beef");
System.out.println("person");
System.out.println("旺旺~~~~~");
System.out.println("quick");
System.out.println("会");
}
class dog1 extends Dog {
public dog1() {
super();
}
class dog2 extends Dog {
public dog2() {
super();
}
}
}
}
dog2 继承还是用super()啊,你怎么用的this
Java入门第二季 升级版
530655 学习 · 6091 问题
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