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professor190 [17]
3 years ago
9

Visual Basics: 1 ) Write an if/else statement that compares the double variable pH with 7.0 and makes the following assignments

to the bool variables neutral, base, and acid:
false, false, true if pH is less than 7

false, true, false if pH is greater than 7

true, false, false if pH is equal to 7

2) Visual Basics: Write an if/else statement that adds 1 to the variable minors if the variable age is less than 18, adds 1 to the variable adults if age is 18 through 64, and adds 1 to the variable seniors if age is 65 or older.
Computers and Technology
1 answer:
Lemur [1.5K]3 years ago
6 0

Answer:

visual basic: 1)

Module PHmodule

   Sub Main()

       'Creating a variable for each entity

       dim ph as double = 0.0, neutral,base,acid as boolean

       'Writing a line to show user what to do

       console.writeline("Enter the pH :")

       'Taking the value

       ph=console.readline()

       'using if & elseif statement for distingushing the values into correct catagories

       if ph<7.0 then

       neutral=false:base=false:acid=true

       elseif ph>7.0 then  

       neutral=false:base=true:acid=false

       elseif ph=7.0 then

       neutral=true:base=false:acid=false

       end if

       'Printing the result

       console.writeline(" Neutral :" & Neutral)

       console.writeline(" base :" & base)

       console.writeline(" acid :" & acid)

       'command for staying in the command prompt for reading the result

       console.readline()

   End Sub

End Module

visual basic: 2)

Module AGEmodule()

  Sub Main()

       'Creating a variable for each entity

       dim age,minors,adults,seniors as integer = 0

       'Taking age from user

       console.writeline("Enter the age")

       age=console.readline()

       'using if & elseif statement for checking the age differnce

       if age<18 then'

       minors +=1

       else if age>18 and age<64 then

       adults +=1

       else if age>64 then  

       seniors +=1

       end if

       'printing result

       console.writeline("minors="&minors)

       console.writeline("adults="&adults)

       console.writeline("seniors="&seniors)

       'command for reading the result  

       console.readline()

  End Sub

End Module

Explanation:

visual basic 1) it is very simple program which allow us to find if the substance is acidic, basic or neutral. we use sim statement for making a variable as double (gives value in decimal) which allow to take a value from the user through console.readline() command and then by using the if statement we apply the condition if the ph is less then, greator then or equal to 7.0 value. thus the program gives us the answer. console.writeline() command is used to print a command on the screen while console.readline() command let us read the lines until we press enter.

visual basic 2)a program which allow us to count and add number of persons according to their age. we use dim statement for creating the variable as integers in which we take the age from user and then after checking it through if statement we increment according to three categories i.e. minors, adults, seniors. the console.writeline() command allow us to print anything on screen and console.readline() allowus to take value while compiling.

thank you...

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