creator.java

来自「java中的一些难题」· Java 代码 · 共 20 行

public class Creator {
    public static void main(String[] args) {
        for (int i = 0; i < 100; i++)
            Creature creature = new Creature();
        System.out.println(Creature.numCreated());
    }
}

class Creature {
    private static long numCreated = 0;

    public Creature() {
        numCreated++;
    }

    public static long numCreated() {
        return numCreated;
    }
}