Tutorial by Examples: p

This example implements a linked list with many of the same methods as that of the built-in list object. class Node: def __init__(self, val): self.data = val self.next = None def getData(self): return self.data def getNext(self): return self.ne...

Once using is used to introduce the name cout from the namespace std into the scope of the main function, the std::cout object can be referred to as cout alone. #include <iostream> int main() { using std::cout; cout << "Hello, world!\n"; }

PyTesseract is an in-development python package for OCR. Using PyTesseract is pretty easy: try: import Image except ImportError: from PIL import Image import pytesseract #Basic OCR print(pytesseract.image_to_string(Image.open('test.png'))) #In French print(pyt...

Another module of some use is PyOCR, source code of which is here. Also simple to use and has more features than PyTesseract. To initialize: from PIL import Image import sys import pyocr import pyocr.builders tools = pyocr.get_available_tools() # The tools are returned in the recommended...

Detailed instructions on getting asynchronous set up or installed.

Detailed instructions on getting hadoop2 set up or installed.

public abstract class BaseActivity extends AppCompatActivity { private Map<Integer, PermissionCallback> permissionCallbackMap = new HashMap<>(); @Override protected void onStart() { super.onStart(); ... } @Override public void setConten...

It is basically address of a variable in memory. It allows us to indirectly access a variable. So using pointers we can talk about a variable's address(as well as its value by dereferencing the pointer). They are useful when we want to deal with address of a memory location rather than its value. C...

This example uses <md-chips> and <md-chip>. NOTE: Static chips cannot be selected, removed or edited, and are not part of any model. If no ng-model is provided, there are no input elements in <md-chips>. index.html: <md-content ng-controller="ChipController"> &...

Detailed instructions on getting web2py set up or installed.

Detailed instructions on getting point-cloud-library set up or installed.

When you're ready to upload your project to the phonegap-build service, zip the content of the www folder and upload the zip file to the phonegap-build service. It is recommended to only zip the content of the www folder, and not the www folder itself. However, this is just a recommendation and zip...

I hope this example will help everyone to understand how awk internal variables like NR, FNR etc change when awk is processing two files. awk '{print "NR:",NR,"FNR:",FNR,"fname:",FILENAME,"Field1:",$1}' file1 file2 NR: 1 FNR: 1 fname: file1 Field1: f1d1 NR:...

Block will capture variables that appeared in the same lexical scope. Normally these variables are captured as "const" value: int val = 10; void (^blk)(void) = ^{ val = 20; // Error! val is a constant value and cannot be modified! }; In order to modify the variable, you need to ...

In the case of a discriminated record type, some of the components are known as discriminants and the remaining components can depend upon these. The discriminants can be thought of as parameterizing the type and the syntax reveals this analogy. In this example we create a type that provide a sq...

Following is the example of QLabel that displays use of texts,images and hyperlinks. import sys from PyQt4.QtCore import * from PyQt4.QtGui import * def window(): app = QApplication(sys.argv) win = QWidget() l1 = QLabel() l2 = QLabel() l3 = QLabel() l4 = QLabel()...

import sys from PyQt4 import QtGui def window(): app = QtGui.QApplication(sys.argv) w = QtGui.QWidget() b = QtGui.QLabel(w) b.setText("<h1>Welcome to PyQt4 SO Documentation!</h1>") w.setGeometry(100,100,550,65) b.move(50,20) w.setWindowTitle(&quo...

from bs4 import BeautifulSoup import requests main_url = "https://fr.wikipedia.org/wiki/Hello_world" req = requests.get(main_url) soup = BeautifulSoup(req.text, "html.parser") # Finding the main title tag. title = soup.find("h1", class_ = "firstHeading&qu...

Ext.define('App.Duck', { extend: 'Ext.Component', alias: 'widget.duck', initComponent: function () { this.callParent(arguments); this._quack(); }, _quack: function () { console.log('The duck says "Quack!"'); this.fireEvent('quack...

// gets the Class objects from the net.mminecraft.server package with the given name public Class<?> getNmsClass(String name) throws ClassNotFoundException { // explode the Server interface implementation's package name into its components String[] packageArray = Bukkit.getServer()....