title: How To Prevent Duplicates In Object ArrayList
body: <p>I have a custom object array list, the object must be in an array list however i have some duplicates in the list and i want to preform a check before i do an add to the list. How can this be achieved. The victimSocialSecurityNumber is unique. Under is my code:</p>
  
  <p><strong>CODE</strong></p>
  
  <pre><code>while (rs.next()){
  
         Citizens victims = new Citizens();
         victims.setSocialSecurityNumber(rs.getInt("victimSocialSecurityNumber"));
  
         victims.setfName(rs.getString("victimFName"));
  
         victims.setlName(rs.getString("victimLName"));
  
         victims.setPhoto(rs.getString("victimPhoto"));
  
         victims.setName(rs.getString("victimFName") +" "+ rs.getString("victimLName"));
  
  
         crime.getVictims().add(victims);         
  </code></pre>