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交作业

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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
	public static int count = 0;
	String name;
	public Person(String name) {
		this.name = name;
		count++;
	}
	
	public static int getCount() {
		return count;
	}



}

是贵成啊

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

你这样写不够严谨,没有考虑到空参的情况,而且变量最好都加修饰符


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