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Python has capability to create GUI applications using the Tkinter library. The library provides many methods useful for GUI applications. The geometry method is a fundamental one which decides the size, position and some other attributes of the screen layout we are going to create.Example - 1In the below program we create a window of size 22x200 pixels using the geometry method. Then we add a button to it and decide button position in the window using the side and pady options.Examplefrom tkinter import * base = Tk() base.geometry('200x200') stud = Button(base, text = 'Tutorialspoint', font =('Courier', 14, 'bold')) stud.pack(side ... Read More
During manipulating data using python lists, we come across a situation where we need to know if two lists are entirely different from each other or they have any element in common. This can be found out by comparing the elements in the two lists with the below approaches decribed.Using InIn a for loop we use the in clause to check in an element is present in the list or not. We will stretch this logic to compare the elements of the lists by choosing an element from first list and checking its presence in the second list. So we ... Read More
Tkinter is the library which gives GUI programming capability to python programs. As part of GUI creation we need to create screen layouts of different sizes and depth. In this program we will see how to calculate the size of a screen in terms of pixels as well as in mm. We can also get the depth of the screen in pixels. There are various methods available as part of Tkinter which we use for this.Examplefrom tkinter import * # creating tkinter window base = Tk() #screen's length and width in pixels and mm length_1= base.winfo_screenheight() width_1= base.winfo_screenwidth() length_2 = ... Read More
In this article, we will learn about the solution to the problem statement given below.Problem statement − We are given al list, we need to display the smallest number available in the listHere we can either sort the list and get the smallest element or use the built-in min() function to get the smallest element.Now let’s observe the concept in the implementation below −Example Live Demolist1 = [101, 120, 104, 145, 99] # sorting using built-in function list1.sort() print("Smallest element is:", list1[0])OutputSmallest element is: 99All the variables are declared in the local scope and their references are seen in the figure ... Read More
Priority queue is an abstract data type for storing a collection of prioritized elements that supports insertion and deletion of an element based upon their priorities, that is, the element with first priority can be removed at any time. The priority queue doesn’t stores elements in linear fashion with respect to their locations like in Stacks, Queues, List, etc. The priority queue ADT(abstract data type) stores elements based upon their priorities.Priority Queue supports the following functions −Size() − it is used to calculate the size of the priority queue as it returns the number of elements in it.Empty() − it return ... Read More
The array_pad() function inserts a specified number of items, with a specified value, to an array. It returns array with new elements. If size is positive then the array is padded on the right, if it's negative then the padding is done on the left.Syntaxarray_pad(arr, size, value)Parametersarr − the arraysize − total elements in the resultant arrayvalue − the value to pad and it should be less than the size of arrReturnThe array_pad() function returns array with new elements. If size is positive then the array is padded on the right, if it's negative then the padding is done on ... Read More
In this article, we will learn about the solution to the problem statement given below.Problem statement − We are given a list, we need to calculate the largest element of the list.Here we will take the help of built-in functions to reach the solution of the problem statementUsing sort() functionExample# list list1 = [23, 1, 32, 67, 2, 34, 12] # sorting list1.sort() # printing the last element print("Largest element is:", list1[-1])OutputLargest in given array is 67Using max() functionExample Live Demo# list list1 = [23, 1, 32, 67, 2, 34, 12] # printing the maximum element print("Largest element is:", max(list1))OutputLargest in given ... Read More
In this article, we will learn about the solution to the problem statement given below.Problem statement − We are given an array, we need to calculate the largest element of the array.Here we use the bruteforce approach in which we compute the largest element by traversing the whole loop and get the element.We can observe the implementation below.Example Live Demo# largest function def largest(arr, n): #maximum element max = arr[0] # traverse the whole loop for i in range(1, n): if arr[i] > max: max = arr[i] return max # ... Read More
In this article, we will learn about the solution to the problem statement given below.Problem statement − We are given a string, we need to count the number of uppercase and lowercase characters present in the string without using the inbuilt functionThis can be easily solved by using islower() and isupper() function available in python. But here there is a constraint to use the inbuilt function. So here we take the help of the ASCII value of the characters.Using the ord() function we compute the ASCII value of each character present in the string and then compare to check for uppercase ... Read More
Given an array arr[n], containing n number of integers and an integer k for defining the size; the task is to print the product of all the subsequences of size k except the minimum and maximum elements.Let us assume we have a set of 4 elements {1, 2, 3, 4} and k as 2 so its subsets will be − {1, 2}, {2, 3}, {3, 4}, {1, 4}, {1, 3}, {2, 4}So excluding the maximum element 4, and minimum element 1, the remaining elements will be −2, 3, 3, 3, 2, product of which will be −2 * 3 * ... Read More