integer = input("Please input an integer greater than 0: ")
print(integer)
You can use the exec statement in Python to create variables from strings. For example, exec("a = 100") creates a variable named a with a value of 100.
-= Example: variable = 5 variable -= 2 will out put 5
Use a character variable. For example: plus = '+' minus = '-' You can now refer to these symbols using the variable names "plus" or "minus".
1.>>> x=input("enter data: ")2.enter data: 253.>>> type(x)4.5.>>> y = int(x)6.>>> type(y)7.I used Python 3.0 for this.Else for earlier version, to accept string type input, u should be using "raw_input" instead of "input" only.I made python accept a data and tested its type, which return to be a string (line 4).Then I usedint()to convert the string into a number, which, for testing purpose, I assigned the value to a variable y. (line 5)Testing the type of data that variable y stores, confirms that the string type was converted to an integer type.(line 7)
The m prefix in variable names in Python programming is a convention used to indicate that the variable is meant to be treated as a private or internal variable within a class or module. It helps to differentiate between public and private variables, making the code more organized and easier to understand for other programmers.
They have different methods, and they display differently when printed.
I suspect that you mean that you want to define constants, which is not possible in Python. Any variable can be rebound to something else at any time.
A variable is used to store information. As an example say you are asking someone for their favorite food, and want to store the answer in a variable called favoriteFood: favoriteFood = input("What is your favorite food?") Now if you print the value of favoriteFood (using print(FavoriteFood)) you will see that it has been saved in that variable. You can store any type in a variable, such as number, a string, or even an object.
In programming, a loop variable is used to control the number of times a loop runs. For example, in Python, you can use a loop variable like "i" in a for loop to iterate over a list of numbers: python numbers 1, 2, 3, 4, 5 for i in numbers: print(i) In this code snippet, the loop variable "i" is used to iterate over each number in the list "numbers" and print it out.
a = 0while a < 10 :a += 1print (a)Write the above simple script in a text editor (I use nano). Save as loop.py in home folder. To run, open a terminal and at the prompt, write: python loop.pyResult:rodney@downstairs:~$ python loop.py12345678910
You cannot declare a variable in Python without assigning some value to it. This is simply because a variable's type is inferred from the type of value that you assign to it. a = "hello world" # a is a string b = 42 # b is an integer c = 3.14 # c is a float d = [4, 8, 15, 16, 23, 42] # d is an integer array In Java, all variable declarations must explicitly include a type even when declared with an initial value. The initial value, when given, must be of the same type or of a type that is covariant with the variable's type. String a = "hello world"; int b = 42; double c = 3.14 int[] d = {4, 8, 15, 16, 23, 42} Note that local variables in Java that are declared but not assigned a value are considered "uninitialised". You must assign a value to all local variables before using them. Instance variables (members of a class) are always initialised. That is; numeric types have an initial value of zero, Boolean types are false and object references are null.
Depends on the programming language you are using. I will give two simple examples. In Command Prompt and when creating a batch file, you declare a variable by entering the "set" command. You can use different switches to change the type of variable you are declaring. /p makes the variable able to accept user input. /a makes the variable a numerical expression. In Python, you declare a variable just by stating the name of the variable and its value. x = value.