CodeBind.com - Page 3 of 22 - Free Programming Tutorials and Lessons By ProgrammingKnowledge

How to Install Redis On Ubuntu 18.04 LTS Linux

May 6, 2018 admin 0

In this post we will see How To Install Redis On Ubuntu Linux To install Redis, run the following commands: […]

Install OpenCV 3.2 in Ubuntu 16.04 (Linux)

Install OpenCV 3.2 in Ubuntu 18.04 LTS (Linux)

May 6, 2018 admin 1

Online Course – OpenCV Python Tutorial For Beginners. At the end of this course, you will have a firm grasp of […]

How to Install OpenCV in Ubuntu 16.04 LTS for C or Cpp

How to Install OpenCV in Ubuntu 18.04 LTS for C / C++ (Linux)

May 6, 2018 admin 6

In this post we will see How to Install OpenCV in Ubuntu for C/C++ OpenCV is an image processing library […]

How to Install Oracle Java 8 on Ubuntu 18.04 via PPA (Linux)

May 6, 2018 admin 0

In this post we will see How to Install Oracle Java 8 on Ubuntu 18.04 via PPA. Step 1 – […]

How to Install Scala, SBT and Java on Ubuntu 18.04 LTS Linux

May 6, 2018 admin 2

In this Post we will see How to Install Scala, SBT and Java on Ubuntu 18.04 LTS (Linux) Install Java Step 1 […]

Set up Virtual Box and Vagrant on ubuntu

How to install Vagrant on Ubuntu 18.04 LTS (Linux)

May 6, 2018 admin 2

I this post we will see How to install and setup Vagrant on Ubuntu 18.04 LTS. Vagrant is an open-source software for […]

How to Enable SSH on Ubuntu 18.04 LTS (Install openssh-server)

May 6, 2018 admin 1

In this post we will see how to enable SSH or Secure Shell service on our Ubuntu 18.04 LTS operating […]

How-to-Install-OpenCV-in-Ubuntu-16.04-LTS-for-Python

How to Install OpenCV in Ubuntu 18.04 LTS for Python

May 6, 2018 admin 1

In this post we will see How to Install OpenCV in Ubuntu for Python OpenCV is an image processing library […]

How to Change Hostname in Ubuntu 18.04 (Change Computer Name)

May 6, 2018 admin 0

In this tutorial we will see How to Change Hostname in Ubuntu 18.04. This method will work without the need […]

How to install XAMPP on Ubuntu 18.04

May 6, 2018 admin 1

In this post we will see How to install XAMPP in Ubuntu 18.04 LTS. Step 1 : Open the link https://www.apachefriends.org/download.html in […]

How to install Java JDK 10 on Ubuntu 18.04 / Ubuntu 16.04

May 5, 2018 admin 2

This Post shows How to install Java JDK 10 on Ubuntu 18.04. In order to install Oracle Java JDK 1o On […]

Install Guest Additions using virtual box.

How Install VirtualBox Guest Additions on Ubuntu 18.04 Guest / virtual machine

May 1, 2018 admin 2

The new Ubuntu 18.04 LTS is out now. But VirtualBox Guest Additions software is not working properly after installation. So this […]

JavaFx Sample code (JavaFx Hello world example)

April 23, 2018 admin 0

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
 
public class HelloWorld extends Application {
    public static void main(String[] args) {
        launch(args);
    }
    
    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("Hello World!");
        Button btn = new Button();
        btn.setText("Say 'Hello World'");
        btn.setOnAction(new EventHandler<ActionEvent>() {
 
            @Override
            public void handle(ActionEvent event) {
                System.out.println("Hello World!");
            }
        });
        
        StackPane root = new StackPane();
        root.getChildren().add(btn);
        primaryStage.setScene(new Scene(root, 300, 250));
        primaryStage.show();
    }
}

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import javafx.application.Application;

import javafx.event.ActionEvent;

import javafx.event.EventHandler;

import javafx.scene.Scene;

import javafx.scene.control.Button;

import javafx.scene.layout.StackPane;

import javafx.stage.Stage;

public class HelloWorld extends Application {

public static void main(String[] args) {

launch(args);

}

@Override

public void start(Stage primaryStage) {

primaryStage.setTitle("Hello World!");

Button btn = new Button();

btn.setText("Say 'Hello World'");

btn.setOnAction(new EventHandler<ActionEvent>() {

@Override

public void handle(ActionEvent event) {

System.out.println("Hello World!");

}

});

StackPane root = new StackPane();

root.getChildren().add(btn);

primaryStage.setScene(new Scene(root, 300, 250));

primaryStage.show();

}

Scala Tutorial – map, flatMap, flatten and filter (Higher-order Methods)

April 7, 2018 admin 1

// Scala - map and filter
object Demo {
  val lst = List(1, 2, 3, 5, 7, 10, 13);
  val mymap = Map(1 -> "Tom", 2 -> "Max", 3 -> "John");
	def main(args: Array[String]) {
	  println(lst.map(x => x / 0.2));
	  println(lst.map(x => "hi" * x));
	  println(mymap.mapValues(x => "hi " + x));
	  println("hello".map(_.toUpper));
	  println(List(List(1,2,3), List(3,4,5)).flatten);
	  println(lst.flatMap(x => List(x, x+1)));
	  
	  println(lst.filter(x => x%2!=0))

	}
}

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