Предупреждение: class is not abstract

package Test;
 
public class Generic {
    public static void main (String[] args) {
        Client first = new Client ("Andrew", 20, "qwerty", 100);
        System.out.println(first.getId());
        Employeebank f = new Employeebank ("Donald", 20, "Director");
        System.out.println(f.getExp());
    }
}
 
interface Bank {
    void setName();
    String getName(String name);
    void setAge();
    int getAge(int age);
    
}
 
interface Clientable<T> extends Bank {
    T getId();
    void setSum(int sum);
    int getSum();
}
 
interface Employeeable extends Bank {
    String getExp(String exp);
}
 
class Client<T> implements Clientable<T> {
    private String name;
    private int age;
    private T id;
    private int sum;
    Client (String name, int age, T id, int sum) {
        this.name = name;
        this.age = age;
        this.id = id;
        this.sum = sum;
    }
    public T getId() {
        return id;
    }
    public String getName() {
        return name;
    }
    public int getAge() {
        return age;
    }
    public int getSum() {
        return sum;
    }
    public void setName(String name){
        this.name = name;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public void setSum(int sum) {
        this.sum = sum;
    }
    
}
 
class Employeebank<T> implements Employeeable {
    private String name;
    private int age;
    private String exp;
    Employeebank (String name, int age, String exp) {
        this.name = name;
        this.age = age;
        this.exp = exp;
    }
  
    public String getName() {
        return name;
    }
    public int getAge() {
        return age;
    }
    public String getExp() {
        return exp;
    }
 
    public void setName(String name){
        this.name = name;
    }
    public void setAge(int age) {
        this.age = age;
    } 
}