Lecture 10-28 code

bigos/lecture20251028/function1/rectangle-area06.py

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+#!/usr/bin/python3
+import sys
+
+# Program: reactangle-area06.py
+# Objective: Calculate the area of a rectangle. Check for numeric error on length.
+# Revisions
+#           Specify the type of the error as ValueError and print the error type.
+#           Added same to width.
+#           Moved input code to function
+# Edward Bigos
+
+try:
+    length = float(input("Enter a value for length "))
+except ValueError as error:
+    print("Error: ",error)
+    print("You have entered an invalid value. The input must be a number.")
+    sys.exit(-1)
+
+try:
+    width = input("Enter a value for width ")
+    width = float(width)
+except ValueError as error:
+    print("Error: ",error)
+    print("You have entered an invalid value. The input must be a number.")
+    sys.exit(-1)
+
+area = length * width
+
+print(f"The area of the rectangle is {area:.1f}")

bigos/lecture20251028/list01/milesPerGallon04.py

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+#!/usr/bin/python3
+import sys
+
+# Program: milesPerGallon01.py
+# Objective: Calculate the milage for a vehicle using the fill-up data.
+# Revisions
+#           Check for division by zero error
+# Edward Bigos
+
+def calculateMilesPerGallon(miles,gallons):
+    try:
+        milesPerGallon = miles / gallons
+    except ZeroDivisionError as error:
+        print("Error: ", error)
+        print("You have entered an invalid value for the gallons. The input must greater than zero.")
+        sys.exit(-1)
+    return milesPerGallon
+
+def getFloatValue(message):
+    try:
+        fValue = float(input(message + ": "))
+    except ValueError as error:
+        print("Error: ", error)
+        print("You have entered an invalid value. The input must be a number.")
+        sys.exit(-1)
+    return fValue
+
+
+
+miles = getFloatValue("Enter a number of miles traveled")
+gallons = getFloatValue("Enter the number of gallons on the last fill-up")
+
+milesPerGallon = calculateMilesPerGallon(miles,gallons)
+
+print(f"The miles per gallon is {milesPerGallon:.1f}")

bigos/lecture20251028/try1/milesPerGallon01.py

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+#!/usr/bin/python3
+import sys
+
+# Program: milesPerGallon01.py
+# Objective: Calculate the milage for a vehicle using the fill-up data.
+# Revisions
+#           None
+# Edward Bigos
+
+
+try:
+    miles = float(input("Enter a number of miles traveled: "))
+except ValueError as error:
+    print("Error: ",error)
+    print("You have entered an invalid value. The input must be a number.")
+    sys.exit(-1)
+
+try:
+    gallons = float(input("Enter the number of gallons on the last fill-up: "))
+except ValueError as error:
+    print("Error: ",error)
+    print("You have entered an invalid value. The input must be a number.")
+    sys.exit(-1)
+
+milesPerGallon = miles/gallons
+
+print(f"The miles per gallon is {milesPerGallon:.1f}")

bigos/lecture20251028/try1/milesPerGallon02.py

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+#!/usr/bin/python3
+import sys
+
+# Program: milesPerGallon01.py
+# Objective: Calculate the milage for a vehicle using the fill-up data.
+# Revisions
+#           Check for division by zero error
+# Edward Bigos
+
+
+try:
+    miles = float(input("Enter a number of miles traveled: "))
+except ValueError as error:
+    print("Error: ",error)
+    print("You have entered an invalid value. The input must be a number.")
+    sys.exit(-1)
+
+try:
+    gallons = float(input("Enter the number of gallons on the last fill-up: "))
+except ValueError as error:
+    print("Error: ",error)
+    print("You have entered an invalid value. The input must be a number.")
+    sys.exit(-1)
+
+try:
+    milesPerGallon = miles/gallons
+except ZeroDivisionError as error:
+    print("Error: ",error)
+    print("You have entered an invalid value for the gallons. The input must greater than zero.")
+    sys.exit(-1)
+
+print(f"The miles per gallon is {milesPerGallon:.1f}")

bigos/lecture20251028/try1/rectangle-area01.py

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+#!/usr/bin/python3
+
+# Program: reactangle-area01.py
+# Objective: Calculate the area of a rectangle. No error checking.
+# Edward Bigos
+
+length = float(input("Enter a value for length "))
+
+
+width = input("Enter a value for width ")
+width = float(width)
+
+area = length * width
+
+print(f"The area of the rectangle is {area:.1f}")

bigos/lecture20251028/try1/rectangle-area02.py

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+#!/usr/bin/python3
+import sys
+
+# Program: reactangle-area02.py
+# Objective: Calculate the area of a rectangle. Check for numeric error on length.
+#           No error checking on width yet.
+# Edward Bigos
+
+try:
+    length = float(input("Enter a value for length "))
+except:
+    print("You have entered an invalid value. The input must be a number.")
+    sys.exit(-1)
+
+width = input("Enter a value for width ")
+width = float(width)
+
+area = length * width
+
+print(f"The area of the rectangle is {area:.1f}")

bigos/lecture20251028/try1/rectangle-area03.py

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+#!/usr/bin/python3
+import sys
+
+# Program: reactangle-area03.py
+# Objective: Calculate the area of a rectangle. Check for numeric error on length.
+#           Specify the type of the error as ValueError
+#           No error checking on width yet.
+# Edward Bigos
+
+try:
+    length = float(input("Enter a value for length "))
+except ValueError:
+    print("You have entered an invalid value. The input must be a number.")
+    sys.exit(-1)
+
+width = input("Enter a value for width ")
+width = float(width)
+
+area = length * width
+
+print(f"The area of the rectangle is {area:.1f}")

bigos/lecture20251028/try1/rectangle-area04.py

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+#!/usr/bin/python3
+import sys
+
+# Program: reactangle-area04.py
+# Objective: Calculate the area of a rectangle. Check for numeric error on length.
+#           Specify the type of the error as ValueError and print the error type.
+#           No error checking on width yet.
+# Edward Bigos
+
+try:
+    length = float(input("Enter a value for length "))
+except ValueError as error:
+    print("Error: ",error)
+    print("You have entered an invalid value. The input must be a number.")
+    sys.exit(-1)
+
+width = input("Enter a value for width ")
+width = float(width)
+
+area = length * width
+
+print(f"The area of the rectangle is {area:.1f}")

bigos/lecture20251028/try1/rectangle-area05.py

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+#!/usr/bin/python3
+import sys
+
+# Program: reactangle-area05.py
+# Objective: Calculate the area of a rectangle. Check for numeric error on length.
+# Revisions
+#           Specify the type of the error as ValueError and print the error type.
+#           Added same to width.
+# Edward Bigos
+
+try:
+    length = float(input("Enter a value for length "))
+except ValueError as error:
+    print("Error: ",error)
+    print("You have entered an invalid value. The input must be a number.")
+    sys.exit(-1)
+
+try:
+    width = input("Enter a value for width ")
+    width = float(width)
+except ValueError as error:
+    print("Error: ",error)
+    print("You have entered an invalid value. The input must be a number.")
+    sys.exit(-1)
+
+area = length * width
+
+print(f"The area of the rectangle is {area:.1f}")

bigos/lecture20251028/try2/milesPerGallon03.py

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+#!/usr/bin/python3
+import sys
+
+# Program: milesPerGallon01.py
+# Objective: Calculate the milage for a vehicle using the fill-up data.
+# Revisions
+#           Check for division by zero error
+# Edward Bigos
+
+
+try:
+    miles = float(input("Enter a number of miles traveled: "))
+except ValueError as error:
+    print("Error: ",error)
+    print("You have entered an invalid value. The input must be a number.")
+    sys.exit(-1)
+
+try:
+    gallons = float(input("Enter the number of gallons on the last fill-up: "))
+except ValueError as error:
+    print("Error: ",error)
+    print("You have entered an invalid value. The input must be a number.")
+    sys.exit(-1)
+
+try:
+    milesPerGallon = miles/gallons
+except ZeroDivisionError as error:
+    print("Error: ",error)
+    print("You have entered an invalid value for the gallons. The input must greater than zero.")
+    sys.exit(-1)
+
+print(f"The miles per gallon is {milesPerGallon:.1f}")

bigos/lecture20251028/try2/rectangle-area07.py

@@ -0,0 +1,27 @@
+#!/usr/bin/python3
+import sys
+
+# Program: reactangle-area06.py
+# Objective: Calculate the area of a rectangle. Check for numeric error on length.
+# Revisions
+#           Specify the type of the error as ValueError and print the error type.
+#           Added same to width.
+#           Moved input code to function
+# Edward Bigos
+
+def getFloatValue(message):
+    try:
+        fValue = float(input(message + ": "))
+    except ValueError as error:
+        print("Error: ", error)
+        print("You have entered an invalid value. The input must be a number.")
+        sys.exit(-1)
+    return fValue
+
+
+length = getFloatValue("Enter a value for length")
+width  = getFloatValue("Enter a value for the width")
+
+area = length * width
+
+print(f"The area of the rectangle is {area:.1f}")