ANSWERS FOR SEQUENTIAL PROCESSING PROBLEMS

// Answer for Problem 1.
    public static void main(String[] args)
    {
        // Initialize min to a value greater than
        // any possible input value x.
        int x, currentMin;
        String s;
        
        s = JOptionPane.showInputDialog(
            "Enter an int. Terminate list with Cancel.");
        min = Integer.parseInt(s);


        s = JOptionPane.showInputDialog(
            "Enter an int. Terminate list with Cancel.");
        while (s != null)
        {
            x = Integer.parseInt(s);
            if (x < curentMin)
                min = x;
            s = JOptionPane.showInputDialog(
                "Enter an int. Terminate list with Cancel.");
        }
             
        System.out.println("The minimum is " + currentMin + ".");
    }

    // Note: instead of using the two lines
            if (x < currentMin)
                currentMin = x;
       you can use
            currentMin = Math.min(x, currentMin);
       to update the current minimum.


// Answer for Problem 2.
    public static void main(String[] args)
    {
        int sum = 0, count = 0;
        String s;
        double ave;
        
        s = JOptionPane.showInputDialog(
            "Enter a string.");
        while (s != null)
        {
            sum += s.length();
            count++;
            s = JOptionPane.showInputDialog(
                "Enter a string.");
        }
        ave = (double) sum / count;
        System.out.println("Average string length is " +
            ave + ".");
    }


// Answer for Problem 3.
    public static void main(String[] args)
    {
        String gender, s;
        int salary, sumForMen, sumForWomen,
            countForMen, countForWomen;

        gender = JOptionPane.showInputDialog("Enter gender.");
        while(s != null)
        {
            s =  JOptionPane.showInputDialog("Enter gender.");
            salary = Integer.parseInt(s);
            if(gender.equals("F")
            {
                sumForWomen += salary;
                countForWomen++;
            }
            else if(gender.equals("M") 
            {
                sumForMen += salary;
                countForMen++;
            }
            s =  JOptionPane.showInputDialog("Enter gender.");
        }
        System.out.println("Ave. salary for men is " + 
            (double) sumForMen / countForMen);
        System.out.println("Ave. salary for women is " + 
            (double) sumForWomen / countForWomen);
    }

// Answer for Problem 4.
    public static void main(String[] args)
    {
        String s;
        int x, max;
        
        s = JOptionPane.showInputDialog(
            "Enter an int.");
        while (s != null)
        {
            x = Integer.parseInt(s);
            if (x % 2 == 0 && x > max)
                max = x;
            s = JOptionPane.showInputDialog(
                "Enter an int.");                
        }
        System.out.println("Maximum even int is " +
            max + ".");
    }