Thanos Psaridis ThanosFisherman

Install PostgreSQL 10 on Ubuntu

This is a quick guide to install PostgreSQL 10 - tested on Ubuntu 16.04 but likely can be used for Ubuntu 14.04 and 17.04 as well, with one minor modification detailed below.

(Optional) Uninstall other versions of postgres

To make life simple, remove all other versions of Postgres. Obviously not required, but again, makes life simple. If you have data in your previous version of postgres that you'd like to retain, then this is not recommended. Instead, you'll have to use pg_upgrade or pg_upgradecluster.

Project Ideas

Ok. I'm going to list off some ideas for projects. You will have to determine if any particular idea is good enough to include in a portfolio. These aren't creative ideas. They likely already exist. Some are way too advanced while others are simplistic.

I will recommend to post any project you make to github and make a github project page for it. Explain in as much detail as possible how you made it, how it can be improved etc. Document it.

If you pick an advanced idea, setup a development roadmap and follow it. This will show some project management skills.

Another piece of advice for those who are design challenged. Use different front end frameworks and use different themes for those frameworks to provide appealing designs without looking like yet another bootstrap site.

Electron apps

Slide deck frameworks supporting Markdown source

Function	Function type	Target passed as	Returns
`also`	Extension	`it`	Target
`apply`	Extension	`this`	Target
`let`	Extension	`it`	Block return value
`run`	Extension	`this`	Block return value
`with`	Regular	`this`	Block return value

	Class Hasher {
	fun hash(): String {
	val bytes = this.toString().toByteArray()
	val md = MessageDigest.getInstance("SHA-256")
	val digest = md.digest(bytes)
	return digest.fold("", { str, it -> str + "%02x".format(it) })
	}
	}

	/*
	* Copyright (C) 2017 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software

	// top level function
	inline fun ifp(boolean: Boolean?, noinline statements: ()->Unit)
	= NonReturningIfContinuation().ElseIfP(boolean, statements)
	inline fun ifn(boolean: Boolean?, noinline statements: ()->Unit)
	= NonReturningIfContinuation().ElseIfN(boolean,statements)
	inline fun <reified T> retIfn(boolean: Boolean?, noinline statements: ()->T)
	= ReturningIfContinuation<T>().ElseIfN(boolean,statements)
	inline fun <reified T> retIfP(boolean: Boolean?, noinline statements: ()->T)
	= ReturningIfContinuation<T>().ElseIfN(boolean,statements)

	sealed class Optional<out T: Any> {
	abstract val isPresent: Boolean
	}
	object None : Optional<Nothing>() {
	override val isPresent: Boolean = false
	}
	data class Some<T: Any>(val value: T) : Optional<T>() {
	override val isPresent: Boolean = true
	}
	fun <T: Any> T?.asOptional(): Optional<T> = this?.let(::Some) ?: None

	package com.test.mytest;

	import java.io.File;
	import java.io.FileInputStream;
	import java.io.FileNotFoundException;
	import java.io.IOException;
	import java.nio.ByteBuffer;

	import android.app.ProgressDialog;
	import android.media.MediaCodec;

	/** Set the View visibility to VISIBLE and eventually animate the View alpha till 100% */
	fun View.visible(animate: Boolean = true) {
	if (animate) {
	animate().alpha(1f).setDuration(300).setListener(object : AnimatorListenerAdapter() {
	override fun onAnimationStart(animation: Animator) {
	super.onAnimationStart(animation)
	visibility = View.VISIBLE
	}
	})
	} else {