I need some help with this solution, as we have a very specific way to approach it. I need to throw an Exception rather than reset it to zero as previously thought, but I'm completely stuck on that. Can I get some help with this JAVA code, specifically with the bolded part regarding the validation of baseSalary being > 0?

public class BasePlusCommissionEmployeeComposition {

private CommissionEmployee commissionEmployee;

private double baseSalary;

// Declare the constructor BasePlusCommissionEmployee

public BasePlusCommissionEmployeeComposition( String first, String last,

String ssn, double sales, double rate, double salary )

{

commissionEmployee = new CommissionEmployee( first, last, ssn, sales, rate );

// Store the salary

setBaseSalary( salary );

}

// Accessor setFirstName()

public void setFirstName( String first )

{

commissionEmployee.setFirstName( first );

}

// Mutator FirstName

public String getFirstName()

{

return commissionEmployee.getFirstName();

}

// Accessor LastName()

public void setLastName( String last )

{

commissionEmployee.setLastName( last );

}

// Mutator LastName()

public String getLastName()

{

return commissionEmployee.getLastName();

}

// Accessor SocialSecurityNumber()

public void setSocialSecurityNumber( String ssn )

{

commissionEmployee.setSocialSecurityNumber( ssn );

}

// Mutator SocialSecurityNumber()

public String getSocialSecurityNumber()

{

return commissionEmployee.getSocialSecurityNumber();

}

// Accessor GrossSales()

public void setGrossSales( double sales )

{

commissionEmployee.setGrossSales( sales );

}

// Mutator GrossSales()

public double getGrossSales()

{

return commissionEmployee.getGrossSales();

}

// Accessor CommissionRate()

public void setCommissionRate( double rate )

{

commissionEmployee.setCommissionRate( rate );

}

// Mutator CommissionRate()

public double getCommissionRate()

{

return commissionEmployee.getCommissionRate();

}

// Accessor BaseSalary()

public void setBaseSalary( double salary )

{

baseSalary = ( salary < 0.0 ) ? 0.0 : salary;

}

// Mutator BaseSalary()

public double getBaseSalary()

{

return baseSalary;

}

// Mutator BaseSalary()

public double earnings()

{

return getBaseSalary() + commissionEmployee.earnings();

}

@Override

public String toString()

{

return String.format( "%s %s %s: %.2f", "base-salaried",

commissionEmployee.toString(), "base salary", getBaseSalary() );

}

}