CoinFlip class that prints coins features

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CoinFlip class that prints coins features














0












$begingroup$


I am trying to make a class that flips a coin and returns the year and type of coin and if its head or tails. I am sure that i made my class correctly but can someone show me how the tester class should look like.



This is my class:



public class Coin

//These are constants that are provided for your use. For example, using the
constant "TAILS" is the same as typing a 1.
private final static int HEADS = 0;
private final static int TAILS = 1;
private final static int UNKNOWN = -1;

//ADD: private instance variables, type (String), year (int), face (int)
private String type;
private int year;
private int face;

// ADD: set type and year to parameters, set face equal to UNKNOWN
public Coin(String _type, int _year)

type = _type;
year = _year;
face = UNKNOWN;


//ADD: set type, year and face to parameters
public Coin(String _type, int _year, int _face)

type = _type;
year = _year;
face = _face;


// ADD: return the value of variable type
public String getType()

return type;


// ADD: if the year is between 1850 and 2015 (inclusive) set the year and retrn true.
// Otherwise, just return false
public boolean setYear(int _year)

year = _year;
if ((year >= 1850) && (year <= 2015))

return true;

else

return false;



// ADD: return the value of the coin. (.25 for a quarter, .10 for a dime, etc.)
// Precondition: type will have a valid value of "quarter", "dime", "nickel" or "penny"
public double getValue()

double value;
if (type == "quarter")

value = .25;


if (type == "dime")

value = .10;


if (type == "nickel")

value = .05;


if (type == "penny")

value = .01;

return value;


// ADD: return the year
public int getYear()

return year;


// ADD: return the string "heads", "tails" or "unknown"
public String getFace()

return face;


//ADD: Use Math.random to produce a random int (0 for heads, 1 for tails).
//Set face equal to the value and then use the getFace method to return "heads" or "tails"
//To call the getFace method, the code is simply: getFace()
public String flip()

if (Math.random() < 0.5)

getFace("Heads");

else

getFace("Tails");

return flip;



// ADD: return the year and type of coin. For example: 1985 quarter
public String toString()







This is my Tester Class:



/* Prompt the user for the number of coin flips.
Flip the count the designated number of times - displaying the number of the coin
flip and the result
Display the number of coin heads and number of tails!

How many flips would you like? 4
1. heads
2. tails
3. heads
4. heads

The results:
3 heads - 75.0%
1 tails - 25.0%
*/
import java.util.Scanner;
public class CoinFlipper

public static void main(String[] args)

Coin coin = new Coin("quarter",1950,0);
Scanner in = new Scanner(System.in);
int flips;
System.out.println("How many flips?");
flips = in.nextInt();

System.out.println("The results:");










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$endgroup$
















    0












    $begingroup$


    I am trying to make a class that flips a coin and returns the year and type of coin and if its head or tails. I am sure that i made my class correctly but can someone show me how the tester class should look like.



    This is my class:



    public class Coin

    //These are constants that are provided for your use. For example, using the
    constant "TAILS" is the same as typing a 1.
    private final static int HEADS = 0;
    private final static int TAILS = 1;
    private final static int UNKNOWN = -1;

    //ADD: private instance variables, type (String), year (int), face (int)
    private String type;
    private int year;
    private int face;

    // ADD: set type and year to parameters, set face equal to UNKNOWN
    public Coin(String _type, int _year)

    type = _type;
    year = _year;
    face = UNKNOWN;


    //ADD: set type, year and face to parameters
    public Coin(String _type, int _year, int _face)

    type = _type;
    year = _year;
    face = _face;


    // ADD: return the value of variable type
    public String getType()

    return type;


    // ADD: if the year is between 1850 and 2015 (inclusive) set the year and retrn true.
    // Otherwise, just return false
    public boolean setYear(int _year)

    year = _year;
    if ((year >= 1850) && (year <= 2015))

    return true;

    else

    return false;



    // ADD: return the value of the coin. (.25 for a quarter, .10 for a dime, etc.)
    // Precondition: type will have a valid value of "quarter", "dime", "nickel" or "penny"
    public double getValue()

    double value;
    if (type == "quarter")

    value = .25;


    if (type == "dime")

    value = .10;


    if (type == "nickel")

    value = .05;


    if (type == "penny")

    value = .01;

    return value;


    // ADD: return the year
    public int getYear()

    return year;


    // ADD: return the string "heads", "tails" or "unknown"
    public String getFace()

    return face;


    //ADD: Use Math.random to produce a random int (0 for heads, 1 for tails).
    //Set face equal to the value and then use the getFace method to return "heads" or "tails"
    //To call the getFace method, the code is simply: getFace()
    public String flip()

    if (Math.random() < 0.5)

    getFace("Heads");

    else

    getFace("Tails");

    return flip;



    // ADD: return the year and type of coin. For example: 1985 quarter
    public String toString()







    This is my Tester Class:



    /* Prompt the user for the number of coin flips.
    Flip the count the designated number of times - displaying the number of the coin
    flip and the result
    Display the number of coin heads and number of tails!

    How many flips would you like? 4
    1. heads
    2. tails
    3. heads
    4. heads

    The results:
    3 heads - 75.0%
    1 tails - 25.0%
    */
    import java.util.Scanner;
    public class CoinFlipper

    public static void main(String[] args)

    Coin coin = new Coin("quarter",1950,0);
    Scanner in = new Scanner(System.in);
    int flips;
    System.out.println("How many flips?");
    flips = in.nextInt();

    System.out.println("The results:");










    share







    New contributor




    Kioken Voltner is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.







    $endgroup$














      0












      0








      0





      $begingroup$


      I am trying to make a class that flips a coin and returns the year and type of coin and if its head or tails. I am sure that i made my class correctly but can someone show me how the tester class should look like.



      This is my class:



      public class Coin

      //These are constants that are provided for your use. For example, using the
      constant "TAILS" is the same as typing a 1.
      private final static int HEADS = 0;
      private final static int TAILS = 1;
      private final static int UNKNOWN = -1;

      //ADD: private instance variables, type (String), year (int), face (int)
      private String type;
      private int year;
      private int face;

      // ADD: set type and year to parameters, set face equal to UNKNOWN
      public Coin(String _type, int _year)

      type = _type;
      year = _year;
      face = UNKNOWN;


      //ADD: set type, year and face to parameters
      public Coin(String _type, int _year, int _face)

      type = _type;
      year = _year;
      face = _face;


      // ADD: return the value of variable type
      public String getType()

      return type;


      // ADD: if the year is between 1850 and 2015 (inclusive) set the year and retrn true.
      // Otherwise, just return false
      public boolean setYear(int _year)

      year = _year;
      if ((year >= 1850) && (year <= 2015))

      return true;

      else

      return false;



      // ADD: return the value of the coin. (.25 for a quarter, .10 for a dime, etc.)
      // Precondition: type will have a valid value of "quarter", "dime", "nickel" or "penny"
      public double getValue()

      double value;
      if (type == "quarter")

      value = .25;


      if (type == "dime")

      value = .10;


      if (type == "nickel")

      value = .05;


      if (type == "penny")

      value = .01;

      return value;


      // ADD: return the year
      public int getYear()

      return year;


      // ADD: return the string "heads", "tails" or "unknown"
      public String getFace()

      return face;


      //ADD: Use Math.random to produce a random int (0 for heads, 1 for tails).
      //Set face equal to the value and then use the getFace method to return "heads" or "tails"
      //To call the getFace method, the code is simply: getFace()
      public String flip()

      if (Math.random() < 0.5)

      getFace("Heads");

      else

      getFace("Tails");

      return flip;



      // ADD: return the year and type of coin. For example: 1985 quarter
      public String toString()







      This is my Tester Class:



      /* Prompt the user for the number of coin flips.
      Flip the count the designated number of times - displaying the number of the coin
      flip and the result
      Display the number of coin heads and number of tails!

      How many flips would you like? 4
      1. heads
      2. tails
      3. heads
      4. heads

      The results:
      3 heads - 75.0%
      1 tails - 25.0%
      */
      import java.util.Scanner;
      public class CoinFlipper

      public static void main(String[] args)

      Coin coin = new Coin("quarter",1950,0);
      Scanner in = new Scanner(System.in);
      int flips;
      System.out.println("How many flips?");
      flips = in.nextInt();

      System.out.println("The results:");










      share







      New contributor




      Kioken Voltner is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.







      $endgroup$




      I am trying to make a class that flips a coin and returns the year and type of coin and if its head or tails. I am sure that i made my class correctly but can someone show me how the tester class should look like.



      This is my class:



      public class Coin

      //These are constants that are provided for your use. For example, using the
      constant "TAILS" is the same as typing a 1.
      private final static int HEADS = 0;
      private final static int TAILS = 1;
      private final static int UNKNOWN = -1;

      //ADD: private instance variables, type (String), year (int), face (int)
      private String type;
      private int year;
      private int face;

      // ADD: set type and year to parameters, set face equal to UNKNOWN
      public Coin(String _type, int _year)

      type = _type;
      year = _year;
      face = UNKNOWN;


      //ADD: set type, year and face to parameters
      public Coin(String _type, int _year, int _face)

      type = _type;
      year = _year;
      face = _face;


      // ADD: return the value of variable type
      public String getType()

      return type;


      // ADD: if the year is between 1850 and 2015 (inclusive) set the year and retrn true.
      // Otherwise, just return false
      public boolean setYear(int _year)

      year = _year;
      if ((year >= 1850) && (year <= 2015))

      return true;

      else

      return false;



      // ADD: return the value of the coin. (.25 for a quarter, .10 for a dime, etc.)
      // Precondition: type will have a valid value of "quarter", "dime", "nickel" or "penny"
      public double getValue()

      double value;
      if (type == "quarter")

      value = .25;


      if (type == "dime")

      value = .10;


      if (type == "nickel")

      value = .05;


      if (type == "penny")

      value = .01;

      return value;


      // ADD: return the year
      public int getYear()

      return year;


      // ADD: return the string "heads", "tails" or "unknown"
      public String getFace()

      return face;


      //ADD: Use Math.random to produce a random int (0 for heads, 1 for tails).
      //Set face equal to the value and then use the getFace method to return "heads" or "tails"
      //To call the getFace method, the code is simply: getFace()
      public String flip()

      if (Math.random() < 0.5)

      getFace("Heads");

      else

      getFace("Tails");

      return flip;



      // ADD: return the year and type of coin. For example: 1985 quarter
      public String toString()







      This is my Tester Class:



      /* Prompt the user for the number of coin flips.
      Flip the count the designated number of times - displaying the number of the coin
      flip and the result
      Display the number of coin heads and number of tails!

      How many flips would you like? 4
      1. heads
      2. tails
      3. heads
      4. heads

      The results:
      3 heads - 75.0%
      1 tails - 25.0%
      */
      import java.util.Scanner;
      public class CoinFlipper

      public static void main(String[] args)

      Coin coin = new Coin("quarter",1950,0);
      Scanner in = new Scanner(System.in);
      int flips;
      System.out.println("How many flips?");
      flips = in.nextInt();

      System.out.println("The results:");








      java





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      share



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      asked 4 mins ago









      Kioken VoltnerKioken Voltner

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