7.4 code practice question 2 edhesive

Answer:

def GPAcalc(g, w):

   if g == "a" or g == "A":

       return 4 + w

   elif g == "B" or g == "b":

       return 3 + w

   elif g == "C" or g == "c":

       return 2 + w

   elif g == "D" or g == "d":

       return 1 + w

   elif g == "F" or g == "f":

       return 0 + w

   else:

       return "Invalid"

grade = input("Enter your Letter Grade: ")

weight = int(input("Is it weighted? (1 = yes, 0 = no)"))

gpa = GPAcalc(grade, weight)

print("Your GPA score is: " + str(gpa))

Explanation:

I hope this helps!

The code practice question illustrates the use of conditional statements.

The execution of a conditional statement depends on its truth value

The program in Python, where comments are used to explain each line is as follows:

#Start by initializing the dictionary

dict = {"a": 4, "b": 3, "c": 2, "d": 1, "f": 0}

#This gets input for grade

grade = input().lower()

#This gets input for the weighted average

weighted = int(input())

#If the weighted average is 1, and the grade is in the dictionary

if weighted == 1 and grade in dictionary:

   #This prints the GPA score

   print("Your GPA score is: "+str(dict[grade] + 1))

#If the weighted average is 0, and the grade is in the dictionary

elif weighted == 0 and grade in dictionary:

   #This prints the GPA score

   print("Your GPA score is : "+str(dict[grade]))

#Otherwise

else:

   #The grade is invalid

   print("Invalid")

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Does somebody know how to this. This is what I got so far
import java.io.*;
import java.util.Scanner;


public class Lab33bst
{

public static void main (String args[]) throws IOException
{



Scanner input = new Scanner(System.in);

System.out.print("Enter the degree of the polynomial --> ");
int degree = input.nextInt();
System.out.println();

PolyNode p = null;
PolyNode temp = null;
PolyNode front = null;

System.out.print("Enter the coefficent x^" + degree + " if no term exist, enter 0 --> ");
int coefficent = input.nextInt();
front = new PolyNode(coefficent,degree,null);
temp = front;
int tempDegree = degree;
//System.out.println(front.getCoeff() + " " + front.getDegree());
for (int k = 1; k <= degree; k++)
{
tempDegree--;
System.out.print("Enter the coefficent x^" + tempDegree + " if no term exist, enter 0 --> ");
coefficent = input.nextInt();
p = new PolyNode(coefficent,tempDegree,null);
temp.setNext(p);
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}
System.out.println();

p = front;
while (p != null)
{

System.out.println(p.getCoeff() + "^" + p.getDegree() + "+" );
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}
System.out.println();
}


}

class PolyNode
{

private int coeff; // coefficient of each term
private int degree; // degree of each term
private PolyNode next; // link to the next term node

public PolyNode (int c, int d, PolyNode initNext)
{
coeff = c;
degree = d;
next = initNext;
}

public int getCoeff()
{
return coeff;
}

public int getDegree()
{
return degree;
}

public PolyNode getNext()
{
return next;
}

public void setCoeff (int newCoeff)
{
coeff = newCoeff;
}

public void setDegree (int newDegree)
{
degree = newDegree;
}

public void setNext (PolyNode newNext)
{
next = newNext;
}

}



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Make the display follow mathematical conventions and do not display terms with zero coefficients, nor powers of 1 or 0. For example the polynomial Y = 1X^0 + 0X^1 + 0X^2 + 1X^3 is not concerned with normal mathematical appearance, don’t display it like that. It is shown again as it should appear. Y = 1 + X^3

Normal polynomials should work with real number coefficients. For the sake of this program, assume that you are strictly dealing with integers and that the result of the polynomial is an integer as well. You will be provided with a special PolyNode class. The PolyNode class is very similar to the ListNode class that you learned about in chapter 33 and in class. The ListNode class is more general and works with object data members. Such a class is very practical for many different situations. For this assignment, early in your linked list learning, a class has been created strictly for working with a linked list that will store the coefficient and the degree of each term in the polynomial.

class PolyNode
{
private int coeff; // coefficient of each term
private int degree; // degree of each term
private PolyNode next; // link to the next term node

public PolyNode (int c, int d, PolyNode initNext)
{
coeff = c;
degree = d;
next = initNext;
}

public int getCoeff()
{
return coeff;
}

public int getDegree()
{
return degree;
}

public PolyNode getNext()
{
return next;
}

public void setCoeff (int newCoeff)
{
coeff = newCoeff;
}

public void setDegree (int newDegree)
{
degree = newDegree;
}

public void setNext (PolyNode newNext)
{
next = newNext;
}
}

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