package pr2.object.equals_person; public class Person { private String vorname; private String nachname; private int alter; @Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + alter; result = prime * result + ((nachname == null) ? 0 : nachname.hashCode()); result = prime * result + ((vorname == null) ? 0 : vorname.hashCode()); return result; } @Override public boolean equals(Object obj) { if (obj == null) { return false; } if (this == obj) { return true; } if (getClass() != obj.getClass()) { return false; } Person other = (Person) obj; if (alter != other.alter) { return false; } if (nachname == null) { if (other.nachname != null) { return false; } } else if (!nachname.equals(other.nachname)) { return false; } if (vorname == null) { return other.vorname == null; } else { return vorname.equals(other.vorname); } } }