/*******************************************
     Solutions of Review #2 - Question 1.
*******************************************/
k= 0
k= 1
k= 2
k= 3
j= 14


/*******************************************
     Solutions of Review #3 - Question 2.
*******************************************/
   /* Solution using for loop */

        int row, col;
        System.out.print("Enter integer n: number of lines  ");
        int n = JLiveRead.readInt();

        for (row =1; row<=n; row++) {
            for (col=1; col<=row; col++) {

               if ( row %2 == 1 )
                   System.out.print("*");
               else
                   System.out.print("?");
            }
            System.out.println();
        }


   /* Alternate solution using while loop */

       int n = JLiveRead.readInt();
       int row = 1;
       
       while ( row <= n ) {
           int col = 1;
           while( col <= row ) {
              if ( row %2 == 1 )
                  System.out.print("*");
              else
                  System.out.print("?");
              col++;
            }
           System.out.println();
           row++;
       }


/*******************************************
     Solutions of Review #3 - Question 3.
*******************************************/

/** An instance of Student has name and three scores */
public class Student{

  private String name;   //Student name
  private int score1;    //Homework score 1
  private int score2;    //Homework score 2
  private int score3;    //Homework score 3

  //The constants below are made public so that another class can see
  //them, as requested by the question statement.
  public static final int PASS=0;      //average is in 70..100
  public static final int MARGINAL=1;  //average is in 55..69
  public static final int FAILING=2;   //average is in 0.. 54


  /** Constructor to initialize all fields */
  public Student(String s, int sc1, int sc2, int sc3)
    //Alternately, one can specify setter methods to assign to the fields

  /** Getter methods for the fields */
  public String getName()
  public int getScore1()
  public int getScore2()
  public int getScore3()

  /** = Compute average of the three scores */
  public int average()
    //return type double is also ok

  /** = Student status: PASS, MARGINAL, or FAILING */
  public int getStatus()
}                                                      


/*******************************************
     Solutions of Review #3 - Question 4.
*******************************************/

public class Calculation {
  public static void main(String[] args) {
    // create two Sphere objects
    Sphere ball = new Sphere(4.0, "ball");
    Sphere orange = new Sphere(4.0, "orange");

    // compute volume of the ball
    double ballVol = ball.getVolume();

    // print a description of the orange
    System.out.println(orange);
  }// end main
}// class Calculation


public class Sphere {
  private double radius;       // radius of sphere
  private String type ;        // what the sphere is

  // Constructor: assign values to the two instance variables of the sphere
  public Sphere(double r, String t) {
    radius = r;
    type = t;
  }// end constructor

  // instance method getVolume for calculating volume of the Sphere
  public double getVolume() {
    return (4./3*Math.PI*Math.pow(radius, 3));
  }

  // define a toString method for showing the type and radius of the Sphere
  public String toString() {
    return ("The object is " + type +  " with radius " + radius);
  }
}// class Sphere