java sqlite - display select

These are my tables:
http://ift.tt/1IsKwNl

I want to display in Java something like raport:

 Connection c = null;
    Statement stmt = null;
    try {
      Class.forName("org.sqlite.JDBC");
      c = DriverManager.getConnection("jdbc:sqlite:project.db");
      c.setAutoCommit(false);
      System.out.println("Opened database successfully");

      stmt = c.createStatement();
      ResultSet rs = stmt.executeQuery( "SELECT stormtrooper.id, squad.id, platoon.id, company.id, battalion.id FROM stormtrooper\n" +
"INNER JOIN squad ON squad.id=stormtrooper.squad\n" +
"INNER JOIN platoon ON platoon.id=squad.platoon\n" +
"INNER JOIN company ON company.id=platoon.company\n" +
"INNER JOIN battalion ON battalion.id=company.battalion;" );
      String log = "";
      while ( rs.next() ) {
         log+=rs.getInt("id") + " | ";
         log+=rs.getInt("id") + " | ";
         log+=rs.getInt("id") + " | ";
         log+=rs.getInt("id") + " | ";
         log+=rs.getInt("id") + "\n";
      }
      jTextArea1.setText(log);  
         rs.close();
      stmt.close();
      c.close();
    } catch ( Exception e ) {
      jTextArea1.setText( e.getClass().getName() + ": " + e.getMessage() );
    }

SELECT statement is correct - I checked this. But when I try execute this in Java, I'm getting an error:

ambiguous column: 'id' 

How should it looks like?