Java程序辅导

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import java.util.*; public class TryThing { public static void main (String [] args) { Thing[] things = {new Thing(new Object()), new EndThing()}; for (int i = 0; i < things.length; i++) { System.out.println(things[i]); System.out.println(things[i].isLast()); System.out.println(); } } }