Java垃圾回收原理，代码测试，最直观

public class Finalize {

private String name;

public Finalize(String name) {

this.name = name;

}

@Override

protected void finalize() throws Throwable {

System.out.println("finalize:"+name);

}

}

@Test

public void testFinalize() {

Finalize a = new Finalize("a");

Finalize b = new Finalize("b");

Finalize c = new Finalize("c");

// a = null;

a = b;

a = c;

// b = null;

c = null;

a = null;

System.gc();

}

finalize:c

finalize:a