Join two arrays in Java? [duplicate]

Answer 1

I would go with System.arraycopy

private static HealthMessage[] join(HealthMessage[] healthMessages1, HealthMessage[] healthMessages2)
{
    HealthMessage[] healthMessagesAll = new HealthMessage[healthMessages1.length + healthMessages2.length];

    System.arraycopy(healthMessages1, 0, healthMessagesAll, 0, healthMessages1.length);
    System.arraycopy(healthMessages2, 0, healthMessagesAll, healthMessages1.length, healthMessages2.length);

    return healthMessagesAll;
}