yunpengn

	public Class CodeQuality {
    private static final String MESSAGE_COMMAND_HELP_PARAMETER = "Parameters: %1$s";
    private static final String MESSAGE_COMMAND_HELP_EXAMPLE = "Example: %1$s";
    private static final String MESSAGE_COMMAND_INVALID_FORMAT = "Invalid command format: %1$s";
    private static final String MESSAGE_DISPLAY_PERSON_DATA = "%1$s  Phone Number: %2$s  Email: %3$s";
    private static final String MESSAGE_GOODBYE = "Exiting Address Book... Good bye!";

    /** List of all persons in the address book. */
    private static final ArrayList<String> people = new ArrayList<>();

yunpengn

import java.util.ArrayList;
import java.util.List;

public class Main {
    public static void main(String[] args) {
        Item item1 = new Item();
        Item item2 = new Item();
        Box box1 = new Box(item1);
        Box box2 = new Box(item2);
        item2.setMainCard(new Card());

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package classObjectDiagram;

public class Main {
	public static void main(String[] args) {
		// Step 1
		Address homeA = new Address("Prince George's Park");

		// Step 2
		Person a = new Person("Alfred", homeA);
		Person b = new Person("Bruce", homeA);

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Specification of the software tools/frameworks used

• Apache HTTP Server > 2.4 [https://httpd.apache.org]
• Postgres SQL Server ~10 [https://www.postgresql.org]
• Server-side language: PHP ~7.1 [http://www.php.net]
• Front-end framework:
  • Bootstrap 4 [https://getbootstrap.com]
  • Cosmo theme by Bootswatch [https://bootswatch.com/cosmo/]
• 3rd-party libraries:
  • PHP Mailer [https://github.com/PHPMailer/PHPMailer]

yunpengn

% This is the presentation slide for NUS CS1101S Programming Methodology.
% This document is meant for Studio Group by Niu Yunpeng.
% Made by Beamer class in Latex, compiled by MiTex.
\documentclass{beamer}

% Set the theme for the Beamer class.
\mode<presentation> {
	\usetheme{Madrid}
}

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require("./utils.js");

// `add` is inserted into global frame. Do not need `utils.add` anymore!
add(1, 2);

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// Imports the required libraries.
const https = require('https');
const fs = require('fs');

// Defines some constants.
const COURSE_HOMEPAGE = '<CHANGE_IT_HERE>';

// Parses the given JSON file regarding URLs.
const url_json = require('./restricted_files.json');
const url_list = url_json.data.getRestrictedFiles.urls;

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# Validates input.
if [[ "$1" == "" ]]; then
    printf "Please specify the number of nodes.\n"
    exit
fi

# Pulls the latest changes.
printf "Going to pull the latest changes ...\n"
cd /temp/yunpengn/calcite
git pull

yunpengn

Install PostgreSQL on Ubuntu without sudo

Being the most advanced open-source relational database, many of us need to install PostgreSQL for some purposes. However, sometimes you may not have sudo privilege on an Ubuntu server. Then, how should you install PostgreSQL in this case?

Compile from source!

Next, we will show a step-by-step guide on how to install PostgreSQL on Ubuntu by compiling it from source.

PostgreSQL Compilation & Installation

yunpengn

-- Sccsid:     @(#)dss.ri	2.1.8.1
-- TPC-H Benchmark Version 8.0

-- For table REGION
ALTER TABLE REGION
	ADD PRIMARY KEY (R_REGIONKEY);

-- For table NATION
ALTER TABLE NATION
	ADD PRIMARY KEY (N_NATIONKEY);