Ruby Programming Language Tutorials Lec 08

Tutorial 8 : Cont. Looping

For Loop

     For the for loop creation I am not going to take your much time. watch in the picture and i am sure that you will understand it .

                           Input                                                 Output

As you can see there we take an variable of name numbers in which we store 5 variables 1,2,3,4,5 and after that in next line make another variable of name number in the for loop condition it is for taking temporary values of numbers in number and print it in next line we print number. Then we end the loop 

     Oh! sorry I forgot to tell you about the print statement so let's make difference between puts and print statement 

                    Input                   Output

      The puts give newline command itself but in print statement all will print in the same line.

      And in these pictures you will also know that how to print the value of any variables.

Another example of loop

     The loops are not only work with numbers they work with records too. For this let's take an example make a record of name groceries and give them values and fill every value of groceries in to food and print it as we can see in pictures

                            Input                                                                          Ouput

 

                 

Range in loops

     We can use ranges in the loops also by giving the lower limit and separate it by two dots

       Input                                                              Output

Here the first # will work as # and the other # will work for print the value of i.