class Conta { protected double saldo;
public void getSaldo (){
System.out.println(this.saldo); }
public void deposita(double valor){
this.saldo += valor;
}
public void saca(double valor){
this.saldo -= valor;
}
public void atualiza (double taxa){
this.saldo += this.saldo * taxa;
} }
class ContaCorrente extends Conta { public void atualiza(double taxa) { this.saldo += this.saldo taxa 2; } }
class ContaPoupanca extends Conta { public void atualiza(double taxa) { this.saldo += this.saldo taxa 3; }
public void deposita(double valor){ this.saldo -= valor - 0.10;
} }
class TestaContas{
public static void main(String [] args){
Conta c = new Conta(); ContaCorrente cc = new ContaCorrente(); ContaPoupanca cp = new ContaPoupanca();
c.deposita(1000); cc.deposita(1000); cp.deposita(1000);
c.atualiza(0.01); cc.atualiza(0.01); cp.atualiza(0.01);
System.out.println(c.getSaldo()); System.out.println(cc.getSaldo()); System.out.println(cp.getSaldo());
}
}
