Category: Arrays
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Array Exercises
Example 1 Python program to find the largest number in an array − import array as arr a = arr.array(‘i’,[10,5,15,4,6,20,9])print(a) largest = a[0]for i inrange(1,len(a)):if a[i]>largest: largest=a[i]print(“Largest number:”, largest)</pre> It will produce the following output − array(‘i’, [10, 5, 15, 4, 6, 20, 9])Largest number: 20Example 2Python program to store all even numbers from an array in…
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Array Methods
The array module in Python offers an efficient object type for representing arrays of basic values like characters, integers, and floating point numbers. Arrays are similar to lists but it stores a collection of homogeneous data elements in order. At the time of creating array’s type is specified using a single character type code. Array…
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Join Arrays
The process of joining two arrays is termed as Merging or concatenating. Python provides multiple ways to merge two arrays such as append() and extend() methods. But, before merging two arrays always ensure that both arrays are of the same data type otherwise program will throw error. In Python, array is a homogenous collection of Python’s built in data…
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Sort Arrays
Python’s array module defines the array class. An object of array class is similar to the array as present in Java or C/C++. Unlike the built-in Python sequences, array is a homogenous collection of either strings, or integers, or float objects. The array class doesn’t have any function/method to give a sorted arrangement of its elements. However,…
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Reverse Arrays
Reversing an array is the operation of rearranging the array elements in the opposite order. There are various methods and approaches to reverse an array in Python including reverse() and reversed() methods. In Python, array is not one of the built-in data types. However, Python’s standard library has array module which helps us to create a homogenous collection…
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Copy Arrays
In Python, copying an array refers to the process of creating a new array that contains all the elements of the original array. This operation can be done using assignment operator (=) and deepcopy() method. In this chapter, we discuss how to copy an array object to another. But, before getting into the details let’s breifly…
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Loop Arrays
Loops are used to repeatedly execute a block of code. In Python, there are two types of loops named for loop and while loop. Since the array object behaves like a sequence, you can iterate through its elements with the help of loops. The reason for looping through arrays is to perform operations such as accessing, modifying, searching, or aggregating…
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Remove Array Items
Removing array items in Python Python arrays are a mutable sequence which means operation like adding new elements and removing existing elements can be performed with ease. We can remove an element from an array by specifying its value or position within the given array. The array module defines two methods namely remove() and pop(). The remove()…
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Add Array Items
Python array is a mutable sequence which means they can be changed or modified whenever required. However, items of same data type can be added to an array. In the similar way, you can only join two arrays of the same data type. Python does not have built-in support for arrays, it uses array module to achieve…
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Access Array Items
Accessing an array items in Python refers to the process of retrieving the value stored at a specific index in the given array. Here, index is an numerical value that indicates the location of array items. Thus, you can use this index to access elements of an array in Python. An array is a container…