Storing Data in Variables : Variables « Language Basics « Ruby

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Ruby » Language Basics » Variables   Storing Data in Variables # A standard variable starts with a lowercase letter, a to z,  # or an underscore, _, followed by any number of name characters.  # A name character is a lowercase letter, an uppercase letter, a digit, or  # an underscore.  temperature = 34 puts temperature   Related examples in the same category 1.  Define a variable to hold an integer 2.  give a value a name by assigning it to a variable 3.  variables can point to any kind of object 4.  Variables allow you to write and use programs that work upon varying data. 5.  variables can also be assigned the results of an expression 6.  Doing a calculation 7.  create a variable and compare it with a number. 8.  Exchanging Values Without Using Temporary Variables 9.  Exchange three value with using new variables 10.  Assign values to more than one variable in one statement 11.  Assign constant array value to three variables 12.  Exchange value with an extra variable 13.  Math calculation 14.  x, y = 1, 2 # Same as x = 1; y = 2 15.  Swap the value of two variables 16.  Array elements automatically assigned to variables 17.  understand the difference between numbers and digits. 18.  Variables in a Class 19.  Prefix and variable type 20.  Interpolation with two variables 21.  Everything Is an Object 22.  Objects Might Have Their Own Methods

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