こんな場合。
public class EqualsTest { public static void main(String args[]) { EqualsTest a = new EqualsTest(); EqualsTest b = a; EqualsTest c = new EqualsTest(); System.out.println("a == b : " + (a == b)); System.out.println("a == c : " + (a == c)); System.out.println("a.equals(b) は絶対 ture でしょ : " + a.equals(b)); return; } public boolean equals(Object aTest) { return false; } }