conundrum.java

来自「java中的一些难题」· Java 代码 · 共 12 行

public class Conundrum {
    public static void main(String[] args) {
        Enigma e = new Enigma();
        System.out.println(e.equals(e));
    }
}

final class Enigma {
    // Provide a class body that makes Conundrum print false.
    // Do *not* override equals.
}