Adapter پترن در جاوا (Adapter pattern in java)

public class BankDetails {
     private String bankName;
     private String accHolderName;
     private long accNumber;

     public String getBankName() {
          return bankName;
     }

     public void setBankName(String bankName) {
          this.bankName = bankName;
     }

     public String getAccHolderName() {
          return accHolderName;
     }

     public void setAccHolderName(String accHolderName) {
          this.accHolderName = accHolderName;
     }

     public long getAccNumber() {
          return accNumber;
     }

     public void setAccNumber(long accNumber) {
          this.accNumber = accNumber;
     }
}

public interface CreditCard {
    
     public void giveBankDetails();
     public String getCreditCard();
}

public class BankCustomer extends BankDetails implements CreditCard {
     public void giveBankDetails() {

          setAccHolderName("CodeGate");
          setAccNumber(1234567);
          setBankName("CG ");
     }

     @Override
     public String getCreditCard() {
          long accno = getAccNumber();
          String accholdername = getAccHolderName();
          String bname = getBankName();

          return ("The Account number " + accno + " of " + accholdername + " in "
                   + bname + "bank is valid and authenticated for issuing the credit card. ");
     }
}

     public static void main(String[] args) {
          CreditCard targetInterface = new BankCustomer();
          targetInterface.giveBankDetails();
          System.out.print(targetInterface.getCreditCard());

     }