/**

 * 给Person类增加一个静态字段count和静态方法getCount，统计实例的个数

 * 

 * @author administrator

 */

public class StaticExample {

public static void main(String[] args) {

// TODO: 给Person类增加一个静态字段count和静态方法getCount，统计实例的个数

Person p1 = new Person("小明");

System.out.println(Person.getCount()); // 1

Person p2 = new Person("小红");

System.out.println(Person.getCount()); // 2

Person p3 = new Person("小军");

System.out.println(Person.getCount()); // 3

}

}

/**

 * 给Person增加构造方法; 给Person增加重载方法setName(String, String)

 * 

 * 给Person类增加一个静态字段count和静态方法getCount，统计实例的个数

 * 

 * @author administrator

 */

public class Person {

private String name;

private int age;

public static int count;

public Person() {

}

public Person(String name) {

this.name = name;

count++;

}

public Person(String name, int age) {

this.name = name;

this.age = age;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public int getAge() {

return this.age;

}

public void setAge(int age) {

this.age = age;

}

public void setName(String prename, String lastname) {

this.name = prename + " " + lastname;

}

public static int getCount() {

return count;

}

}