How to install Processing core Java library using Eclipse IDE (Oxygen version)

How to download and import Processing libraries. In this case, core library is used. As IDE, in this case, I'm using Eclipse Oxygen version.

[MiquelBoada]

Code used:

import processing.core.*; // We need to import this library

public class ProcessingCoreExample extends PApplet {

private PImage webImg;

public static void main(String[] args) {

}

public void setup() {
size(275, 95);
webImg = loadImage(URL, "png");
}

public void draw() {
image(webImg, 0, 0);
}

}