eu recebo esses 3 erros ao compilar o codigo do exercicio
C:\Users\Alex\Desktop\Java II>javac Conta.java Conta.java:19: error: class ContaCorrente is public, should be declared in a fil e named ContaCorrente.java public class ContaCorrente extends Conta {
^ Conta.java:25: error: class ContaPoupanca is public, should be declared in a fil e named ContaPoupanca.java public class ContaPoupanca extends Conta {
^ Conta.java:33: error: class TestaContas is public, should be declared in a file named TestaContas.java public class TestaContas {
^ 3 errors
C:\Users\Alex\Desktop\Java II>