# Solving english ruler problem using recursion in python and swift

We must print an english ruler using recursion . An english ruler is ruler where each unit has a number of tick. a unit can be divided into smaller units at 1/2 the interval 1/4 the interval 1/8 the interval … Read More

# What is the addView method in android ?

The `addView` method, is used to add a `View` programmatically to a `ViewGroup`. A `ViewGroup` can be for example, a `LinearLayout`, or a `RelativeLayout`.. A `ViewGroup` is itself a `View`. The `addView` method is overloaded.

# what is a character in python ?

## What is a character in python ?

A character in python is represented using a Unicode code point. A Unicode code point is written by using `U+` followed by a number written in hexadecimal . This number written in hexadecimal … Read More

# what is a byte ?

## what is a byte ?

A byte is 8 bits ,

``` [_ _ _ _ _ _ _ _ ]
7 6 5 4 3 2 1 0

number of bits = 7 - 0 + 1 = 8
```

# reversed in python , a tutorial

## What is reversed?

The reversed class is used to create a reverse iterator from an object .

This object , must either implement the `__getitem__` and the `__len__` special methods . In this case reverse will create an iterator from

# Generators in python , a tutorial

## What is a generator

A generator simply generates data that we are going to use someplace. For example ,if we want to generate some random characters , or if we want to generate a number in a mathematical series , … Read More

# what is an object in python ?

In python , we have the class type , and we have the class object .

The class type is used to create a new type/class .

The class type is also used to get the type/class used to create … Read More

# Python iterable and iterator a tutorial

## what is an iterable ?

In python , objects are abstraction of data , they have methods that work with data , and help us to manipulate it . If we take a look at a list , and see … Read More

# Sets in python a tutorial

In this tutorial , we will show how to use sets in python . We will start by explaining what is a set. After that we will explain how to use sets , so the various operations that we can … Read More

# How To Use The TimeIt Module in python

The timeIt module is used to test how fast our code is . We can use it to compare different functions or classes or just some line of code ,and see how fast they are .Also if we want we … Read More