创建java类并实例化对象

/**
* AWT Sample application
* @author foreverlove111
* @version 1.00 17/10/17
*/
public class Zoo {

public static void main(String[] args) {
Animal a1=new Animal();	//类的实例化

a1.name="老虎";
a1.age=3;
System.out.println("name:"+a1.name+" age:"+a1.age);
a1.eat();
a1.sleep();

}
}

class Animal{
String name;
int age;

public void eat(){
System.out.println("动物进食");
}

public void sleep(){
System.out.println("动物休眠");
}

public String getName(){
return name;
}

public void setName(String n){
name=n;
}
}