import java.util.*;

public class RetirementCalculatorModel
{
    /* input fields */
    private HashMap<String, Double> myFields;

    public RetirementCalculatorModel()
    {
        myFields = new HashMap<String, Double>();
        reset();
    }

    public void setField(String name, double value)
    {
        myFields.put(name, value);
    }

    public double getField(String name)
    {
        return (myFields.containsKey(name)) ? myFields.get(name) : 0;
    }

    public void reset()
    {
        myFields.clear();

        setField("current income", 0);
        setField("income wanted", 0);
        setField("employer pension", 0);
        setField("part time income", 0);
        setField("other income", 0);
        setField("age", 30);
        setField("retirement age", 65);
        setField("savings", 0);
        setField("life expectancy", 82);

        calculate();
    }

    public void calculate()
    {
        setField("social security", calculateSocialSecurity());
    }

    private double calculateRetirementFactor()
    {
        return 0.0;
    }
    
    private double calculateSocialSecurity()
    {
        double current_income = getField("current income");
        if      (current_income < 25000.0)
            return 8000.0;
        else if (current_income <= 40000.0)
            return 12000.0;
        else
            return 14500.0;
    }

    private double calculateSavingsFactor()
    {
        return 0.0;
    }
}