About Question com.enthuware.ets.scbcd.v5.2.71 :

[ETS User]

Hi what's wrong with option 3?

@Id private Integer acctid;
private Double balance;

public Integer getAcctid() { return this.acctid; }
public void setAcctid(Integer acctid) { this.acctid = acctid; }

@Basic(fetch=LAZY)
public Double getBalance() { return this.balance; }
public void setBalance(Double balance) { this.balance = balance; }

[admin]

Nothing. That is why it is a correct option.