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作业,已验证。

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Nobody52297

#1 Created at ... [Delete] [Delete and Lock User]

public class Main {

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

}

}

public class Person {

// TODO

String name;

public static int count;

public Person(String name) {

this.name = name;

count ++;

}

public static int getCount() {

return count;

}

}


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