counter.java

来自「java 教程相应的代码 全是自己写的内附注释 很容易看明白的」· Java 代码 · 共 29 行

package demo.chapter06.others;

public class Counter {
	
	private static int count;
	
	public Counter() {
		count++;
		System.out.println("现在有" + count + "个对象");
	}
	
	@Override
	protected void finalize() throws Throwable {
		count--;
		System.out.println("现在还剩下" + count + "个对象");
	}

	@SuppressWarnings("unused")
	public static void main(String[] args) {
		for (int i = 0; i < 13; i++) {
			Counter c = new Counter();
			if (i % 5 == 0) {
				System.gc();
			}
		}
	}

}