public class Test { int f; public int j; int h; public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; final Test test = (Test) o; if (f != test.f) return false; if (j != test.j) return false; if (h != test.h) return false; return true; } public int hashCode() { return 0; } }