The majority of this post is from Wikipedia. Classpath is a parameter—set either on the command-line, or through an environment variable—that tells the Java Virtual Machine or the Java compiler where to look for user-defined classes and packages. Contents 1 Overview and architecture 2 Setting the path to execute Java programs 2.1 Supplying as application … Continue reading Java classpath and external library (with some personal notes as well)
Author: Eric
How to compile and run a Java program in command prompt?
Here is an example if you are going to use OpenJDK. This helps when it's too slow to load a Java IDE to compile the source files (For example, on Raspberry Pi platform; I've tried Geany and Netbeans. It takes forever to load...). From Terminal install the open jdk sudo apt-get install openjdk-7-jdk Write program … Continue reading How to compile and run a Java program in command prompt?
For a Java newbie…
import java.util.Date; When you add the above line to a Java program, you are not reading a file. You are telling the compiler to treat the type reference "Date" as if it was "java.util.Date". When the compiler later resolves java.util.date it will find it in the JDK's jre/lib/rt.jar file.
How to add Java library in Windows, Netbeans, and Geany
For Netbeans: In the Projects window right-click on the name of the project that needs the library -> Properties -> The Project Properties window opens. In Categories tree select "Libraries" node -> On the right side of the Project Properties window press button "Add JAR/Folder" -> Select jars you need. For Windows platform: Typically you … Continue reading How to add Java library in Windows, Netbeans, and Geany
How to configure Geany to run Java
You should configure the "Set Build Commands" under "Build". This is where you specify the Java commands and execute commands. Compile: "C:\Program Files\Java\jdk1.8.0_45\bin\javac" "%d\%f" Execute: "C:\Program Files\Java\jdk1.8.0_45\bin\java" "-classpath" "%d" "%e"
Processing.js – convert Java into JavaScript
Processing.js Quick Start - Processing Developer Edition Introduction This quick start guide is written from the standpoint of a Processing developer. No HTML or JavaScript knowledge is assumed, and only basic Processing knowledge is necessary. Index For the Impatient Why Processing.js? The Web: from Java to JavaScript Processing.js uses Modern Web Standards Writing a Processing.js … Continue reading Processing.js – convert Java into JavaScript
How to get a permanent access token for your facebook Page?
Personal note: I've tried this. It seems that if you follow EVERY step, you will be able to get a "never expiring" page access token. However, it doesn't seem that making a post to the page is possible? Let me take a closer look into this... Having found that it is possible to generate a … Continue reading How to get a permanent access token for your facebook Page?
A simple Java code to use HTTP GET in Processing
import java.io.*; import java.net.*; String web_url = "https://www.google.com"; public class Web_access { public String getHTML(String urlToRead) { URL url; HttpURLConnection conn; BufferedReader rd; String line; String result = ""; try { url = new URL(urlToRead); conn = (HttpURLConnection) url.openConnection(); conn.setRequestMethod("GET"); rd = new BufferedReader(new … Continue reading A simple Java code to use HTTP GET in Processing
A note on how to run native Java code in Processing
Question: Processing keeps giving me this error when I run it even though it is just a print command. When I delete the comment block it works fine. Here's the code: /* float[] cortToPolar(int xcorr, int ycorr) { float returns[] = new float[2]; returns[0]= degrees(tan(ycorr/xcorr)); returns[1]= sqrt(pow(xcorr,2)+pow(ycorr,2)); return returns; } float lawCos(int a, int b, … Continue reading A note on how to run native Java code in Processing
Top 10 Marketing Tips From Full-Time Etsy Sellers
When we invited five successful full-time Etsy sellers to nominate their best marketing advice, we were pleasantly surprised to learn that they shared a good deal of strategic wisdom and tricks of the trade. Here are the top 10: 1. Make Your Photos “Drool-Worthy” Four of the five full-time sellers nominated quality photography as the … Continue reading Top 10 Marketing Tips From Full-Time Etsy Sellers
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