Variable

Which of the following variable names are valid?

1. 1n
2. ~n
3. this_is_a_number
4. n1?
5. A1
6. match
7. function()

Exercise

1. Create a val called pi and assign it the value of 3.14159:
2. Create a val called message and assign it a string value:
3. Create a val called age and assign it an integer value:
4. Create a val called isTall and assign it a boolean value:
5. Create a val called name and assign it a string value, then print a message that includes the value of name: