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package polynomials /* * Your tasks (indicated with 'Task X' below): Task 1: • Implement mutable internal state (=current value) for Variables. • Complete the 'set' and 'value' methods in class Variable, and the 'value' method in class Constant. Task 2: • Implement polynomial value computation using structural recursion. * Complete the 'value' methods in all the classes extending Polynomial. Hint: you may want to take a look at how the method 'asString' is implemented. + Task 3: + Implement programmer-defined operators to ease working with Polynomial objects. That is, complete the methods and '+' in class Polynomial so that you may use the operators and '+' to construct Product and Sum objects from Polynomial objects. For more on operators in Scala, see here http://docs.scala-lang.org/tutorials/tour/operators.html

package polynomials /* * Your tasks (indicated with 'Task X' below): Task 1: • Implement mutable internal state (=current value) for Variables. • Complete the 'set' and 'value' methods in class Variable, and the 'value' method in class Constant. Task 2: • Implement polynomial value computation using structural recursion. * Complete the 'value' methods in all the classes extending Polynomial. Hint: you may want to take a look at how the method 'asString' is implemented. + Task 3: + Implement programmer-defined operators to ease working with Polynomial objects. That is, complete the methods and '+' in class Polynomial so that you may use the operators and '+' to construct Product and Sum objects from Polynomial objects. For more on operators in Scala, see here http://docs.scala-lang.org/tutorials/tour/operators.html

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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1 2 3 4 5 package polynomials 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 // Scala 3 (DO NOT EDIT OR REMOVE THIS LINE!!!) /* * Your tasks (indicated with 'Task X' below): * * Task 1: * Implement mutable internal state (=current value) for Variables. Complete the 'set' and 'value' methods in class Variable, * and the 'value' method in class Constant. * Task 2: * Implement polynomial value computation using structural recursion. * Complete the 'value methods in all the classes extending Polynomial. * Hint: you may want to take a look at how the method 'asString' * is implemented. * Task 3: * Implement programmer-defined operators to ease working with Polynomial * objects. That is, complete the methods '*' and '+' in class Polynomial * so that you may use the operators '*' and '+' to construct Product and * Sum objects from Polynomial objects. For more on operators in Scala, see here * * http://docs.scala-lang.org/tutorials/tour/operators.html */ /** The abstract base class for polynomials. */ TRATSIRRO FER SRINI . 다 FEAT. NOTEM NE NA KABABA
Transcribed Image Text:1 2 3 4 5 package polynomials 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 // Scala 3 (DO NOT EDIT OR REMOVE THIS LINE!!!) /* * Your tasks (indicated with 'Task X' below): * * Task 1: * Implement mutable internal state (=current value) for Variables. Complete the 'set' and 'value' methods in class Variable, * and the 'value' method in class Constant. * Task 2: * Implement polynomial value computation using structural recursion. * Complete the 'value methods in all the classes extending Polynomial. * Hint: you may want to take a look at how the method 'asString' * is implemented. * Task 3: * Implement programmer-defined operators to ease working with Polynomial * objects. That is, complete the methods '*' and '+' in class Polynomial * so that you may use the operators '*' and '+' to construct Product and * Sum objects from Polynomial objects. For more on operators in Scala, see here * * http://docs.scala-lang.org/tutorials/tour/operators.html */ /** The abstract base class for polynomials. */ TRATSIRRO FER SRINI . 다 FEAT. NOTEM NE NA KABABA
35 abstract class Polynomial(): mm 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 70 71 def value: Int // implemented by extending classes def asString: String // implemented by extending classes 72 73 74 def +(right: Polynomial): Polynomial = ??? // Task 3 // sum of left (this) and right def *(right: Polynomial): Polynomial = ??? // Task 3 // product of left (this) and right end Polynomial /** An extending class that implements polynomial variables. */ class Variable (name: String) extends Polynomial(): // Task 1 // ??? record current value of this variable somewhere here def set(new_val: Int) = { ??? } // set the value of this variable ↑ value |_def value = ??? ↑asString def asString = name end Variable /** An extending class that implements polynomial constants. */ class Constant (v: Int) extends Polynomial(): ↑ value def value = ??? // Task 1 ↑ asString def asString = v.toString end Constant 65 66 67 */ 68 /** An extending class that implements polynomials that are the product of two polynomials. * 69 class Product(left: Polynomial, right: Polynomial) extends Polynomial(): ↑ value def value = ??? // Task 2 ↑asString def asString = "(" ++ left.asString ++ "*" ++ right.asString ++ ")" // return current value of this variable /** An extending class that implements polynomials that are the sum of two polynomials. */ class Sum(left: Polynomial, right: Polynomial) extends Polynomial(): ↑ value def value = ??? // Task 2 ↑asString def asString = "(" ++ left.asString ++ "+" ++ right.asString ++ ")" end Sum end Product S BEOG REPARAR CASINE GRATILI ALLA MATATY SUKIER BLE TABLES
Transcribed Image Text:35 abstract class Polynomial(): mm 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 70 71 def value: Int // implemented by extending classes def asString: String // implemented by extending classes 72 73 74 def +(right: Polynomial): Polynomial = ??? // Task 3 // sum of left (this) and right def *(right: Polynomial): Polynomial = ??? // Task 3 // product of left (this) and right end Polynomial /** An extending class that implements polynomial variables. */ class Variable (name: String) extends Polynomial(): // Task 1 // ??? record current value of this variable somewhere here def set(new_val: Int) = { ??? } // set the value of this variable ↑ value |_def value = ??? ↑asString def asString = name end Variable /** An extending class that implements polynomial constants. */ class Constant (v: Int) extends Polynomial(): ↑ value def value = ??? // Task 1 ↑ asString def asString = v.toString end Constant 65 66 67 */ 68 /** An extending class that implements polynomials that are the product of two polynomials. * 69 class Product(left: Polynomial, right: Polynomial) extends Polynomial(): ↑ value def value = ??? // Task 2 ↑asString def asString = "(" ++ left.asString ++ "*" ++ right.asString ++ ")" // return current value of this variable /** An extending class that implements polynomials that are the sum of two polynomials. */ class Sum(left: Polynomial, right: Polynomial) extends Polynomial(): ↑ value def value = ??? // Task 2 ↑asString def asString = "(" ++ left.asString ++ "+" ++ right.asString ++ ")" end Sum end Product S BEOG REPARAR CASINE GRATILI ALLA MATATY SUKIER BLE TABLES
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