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Articles by Dev Prakash Sharma
Page 33 of 42
Write a program in C++ to find the most frequent element in a given array of integers
Let’s suppose we have an array of integers of size N. The task is to find the most frequent element present in the given array of integers. For example, Input-1 −N = 8 A[ ] = {1, 2, 4, 3, 3, 1, 1, 5}Output −1Explanation − In the given array of integers, the most appearing number is ‘1’. Thus the output is ‘1’.Input-2 −N = 6 A[ ] = {1, 4, 4, 4, 1, 1}Output-a −1Output-b −4Explanation: In the given array of integers, the most appearing number is ‘1’ and ‘4’. Thus we can return the output to any one ...
Read MoreGiven a sorted array of 0's and 1's, find the transition point of the array in C++
Given an array of sorted numbers containing only 0s and 1s, find the transition point. A transition point is the index of the first ‘1’ appearing in the array. For example, Input-1 −N = 6 arr[ ] = {0, 0, 0, 0, 1, 1}Output −4Explanation − Since in the given array containing 0’s and 1’s we can see that the element at the index ‘4’ is having the number ‘1’.Input-2 −N = 5 arr[ ] = {0, 0, 1, 1, 1}Output −2Explanation − In the given array containing 0’s and 1’s, we can see that the element at the index ...
Read MoreCheck if two strings are anagram of each other using C++
Let’s Suppose we have given two strings ‘a’ and ‘b. We have to check that the given two strings are anagram of each other or not. Two Strings are said to be anagram of each other if one string contains the same character as another.For ExampleInput-1 −a= anagram b= gnaramaOutput −TrueExplanation − String ‘gnarama’ has the same character as String ‘anagram’ has. Hence we return True.Input-2 −a= programmer b= mprogretmrqpOutput −FalseExplanation − String ‘b’ has more characters than the string ‘a’ and thus we can say that the length of the string is different. Thus we return False.The approach used ...
Read MoreHow to align text to the left in Tkinter Label?
Tkinter Label widget can be aligned using the anchor attributes. In order to calculate the accommodate spacing and alignment of the widget, anchor would help in a better way. Anchor provides several options such as N, W, S, E, NW, NE. SW, SE which can be defined in the pack manager itself.ExampleIn the following example, we will align the Label text of an application to the left by adding the anchor attribute towards “w” direction.#Import the required library from tkinter import* #Create an instance of tkinter frame win= Tk() #Set the geometry win.geometry("750x250") #Create a Label Widget Label(win, text= "New ...
Read MoreHow to add text inside a Tkinter Canvas?
Canvas is undoubtedly one of the most versatile widgets in Tkinter. With Canvas, we can create shapes, texts, animate stuff, modeling 3D shapes, modeling simulations, and many more.In order to add text inside a tkinter frame, we can use the create_text() method. We can define create_text() by adding values of font, text, and other options such as create_text(x, y, font, text, options….).Example#Import the required library from tkinter import * #Create an instance of tkinter frame win= Tk() #Set the geometry win.geometry("750x280") #Create a canvas object canvas= Canvas(win, width= 1000, height= 750, bg="SpringGreen2") #Add a text in ...
Read MoreTaking input from the user in Tkinter
There might be times when we need to take the user input in our Tkinter application. We can get the user Input in a Single Line text input through the Entry widget using get() method. To display the Captured input, we can either print the message on the screen or display the input with the help of the Label widget.Example#Import the required Libraries from tkinter import * from tkinter import ttk #Create an instance of Tkinter frame win= Tk() #Set the geometry of Tkinter frame win.geometry("750x250") def display_text(): global entry string= entry.get() label.configure(text=string) ...
Read MoreGet contents of a Tkinter Entry widget
An Entry widget is a basic one-line character widget that supports only single-line text input. An Entry widget can be defined by initializing the Entry(parent, width) constructor.To validate the Entry widget, we can use the get() method which results in the character entered in the Entry widget.Let us define an Entry widget that accepts single-line text input, and we will print the character that is input in the Entry widget.Example#Import the required Libraries from tkinter import * from tkinter import ttk #Create an instance of Tkinter frame win = Tk() #Set the geometry of Tkinter frame win.geometry("750x250") def get_content(): ...
Read MoreSave File Dialog Box in Tkinter
We often use Open and Save Dialog. They are common across many applications and we already know how these dialogs work and behave. For instance, if we click on open, it will open a dialog to traverse the location of the file. Similarly, we have the Save Dialog.We can create these dialogs using Python tkFileDialog package. In order to work with the package, we have to import this in our environment.Type the following command to import the tkFileDialog package in the notebook, from tkinter.filedialog import asksaveasfileExampleIn this example, we will create an application that will save the file using the ...
Read MoreHow to make an OptionMenu maintain the same width using tkinter?
The OptionMenu allows users to select an option from the given menu of items. To prepare an OptionMenu, we use the OptionMenu(arguments) constructor, which takes the parent widget, a variable to store the options, the default option, and selectable options. However, in some cases, we can find that the options width is quite different from the pane width. We can maintain the width of the options by finding the maximum length from the given options. Now, by using the config(width) method, we can set the width of the OptionMenu.Example#Import Tkinter library from tkinter import * from tkinter import ttk #Create ...
Read MoreHow to set the background color of a ttk.Combobox in tkinter?
Tkinter supports ttk widget which is used to change the style and properties of any widget in a tkinter application. We can set the background color, foreground color, and other attributes of the Combobox widget by visiting the configure function in ttk and passing 'TCombobox' as the first parameter.ExampleIn this example, we will set the background color of the Combobox widget by defining its values in the ttk widget.# Import the required libraries from tkinter import * from tkinter import ttk # Create an instance of tkinter frame win = Tk() # Set the size of the tkinter ...
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