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ProcessBuilder call another java file same package

I am learning how to use ProcessBuilder, I created a package called socketspractice, inside I have 2 classes, I am trying to create a new process where 'Program.java' calls 'test1.java' so it prints 'test1'.
When I use command prompt: "java socketspractice.test1" 'test1' prints, but using Netbeans it doesn't.
The question is, how can I set the path so it works the same way or what else am I missing? I am using Netbeans for this.
Program.java
package socketspractice;
import java.io.File;
import java.io.IOException;
import java.lang.ProcessBuilder;
public class Program {
public static void main(String[] args) throws IOException, InterruptedException {
ProcessBuilder builderExecute = new ProcessBuilder("java", "socketspractice.test1");
builderExecute.start();
}
}
AND
test1.java
package socketspractice;
public class test1 {
public static void main(String[] args) {
// TODO code application logic here
System.out.println("test1");
}
}

The main issue with ur approach is that when you are starting ProcessBuilder it doesnt know where ur project lies on your machine, because its running as a seperate JVM process.
So please create you project as a maven project and then try to put the compiled jar in classpath and then start the process builder.
ProcessBuilder pb = new ProcessBuilder("java","-classpath",
"<complete location of your jar containing test1>", "socketspractice.test1")

html2image configuration in java

I would to ask about html2image, i have some codes like this
import gui.ava.html.image.generator.HtmlImageGenerator;
import java.io.File;
public class html2image {
public static void main(String[] args) {
HtmlImageGenerator imageGenerator = new HtmlImageGenerator();
imageGenerator.loadHtml("<b>Hello World!</b> Please goto <a title=\"Goto Google\" href=\"http://www.google.com\">Google</a>.");
imageGenerator.saveAsImage("hello-world.png");
imageGenerator.saveAsHtmlWithMap("hello-world.html", "hello-world.png");
}
}
But seems like after i call this java, its not appear any image or output image, maybe i miss some configuration, anyone can help ?

Try to give the absolute path in imageGenerator.saveAsImage as otherwise the file will be generated in the working directory.

Open any file from within a java program

Opening files in java seems a bit tricky -- for .txt files one must use a File object in conjunction with a Scanner or BufferedReader object -- for image IO, one must use an ImageIcon class -- and if one is to literally open a .txt document (akin to double-clicking the application) from java, this code seems to work:
import java.io.*;
public class LiterallyOpenFile {
public static void main(String[] args) throws IOException {
Runtime rt = Runtime.getRuntime();
Process p = rt.exec("notepad Text.txt");
}
}
I'm not positive, but I think other file-types / names can be substituted in the parenthesis after exec -- anyway, I plan on opening certain files in a JFileChooser when the user clicks on a file to open (when the user clicks on a file, the path to the file can be obtained with the getSelectedFile() method). Though I'm more specifically looking to be able to open an Arduino file in the Arduino IDE from a java program, like a simulated double-click.. perhaps something like this?
import java.io.*;
public class LiterallyOpenFile {
public static void main(String[] args) throws IOException {
Runtime rt = Runtime.getRuntime();
Process p = rt.exec("Arduino C:\\Arduino\\fibonacci_light\\fibonacci_light.ino");
}
}
A point in the right direction would be appreciated.

Have you tried this? If there is a registered program for your file in windows, this should work. (i.e. the default application should open the file)
Desktop desktop = Desktop.getDesktop();
desktop.open(file);
The file parameter is a File object.
Link to API
Link to use cases and implementation example of the Desktop class

This is what I do in my projects using java.awt.Desktop
import java.awt.Desktop;
import java.io.IOException;
import java.io.File;
public class Main
{
public static void main(String[] args) {
try {
Desktop.getDesktop().open(new File("C:\\Users\\Hamza\\Desktop\\image.png"));
} catch (IOException e) {
e.printStackTrace();
}
}
}

Why can't I run the all java classes?

I'm doing a port over of codes from Processing to Netbeans Java. I'm having problems running multiple java classes. My codes are spread out into 14 classes, where my main class include only this set of codes:
package gardeningmania;
import java.io.File;
import processing.core.*;
public class GardeningMania extends PApplet{
public static void main(String[] passedArgs) {
File currentDir = new File("."); getAllFilse(currentDir);
PApplet.main(new String[]{/*"--present",*/"gardeningmania.GardeningMania"});
}
public static void getAllFilse(File currentDir) {
File[] filesList = currentDir.listFiles();
for(File f : filesList){
if(f.isDirectory()) getAllFilse(f);
if(f.isFile()){ System.out.println(f.getName()); }
}
}
}
Whenever the project is being run, only a small screen will pop-up with a gray background, however, that's all it shows. It seems to me that it's unable to read all my codes from the other 13 classes. Any ideas, anyone?

Applets don't use a main()-method; you have to implement other Methods instead:
void init();
void start();
void stop();
void destroy();
By default, the class Applet doesn't implement them, they all have only an empty block.
Please see:
Why do applets not need a main()?
Java Applet runs without a main method?
Lesson: Java Applets
Life Cycle of an Applet

Java Swing - How to double click a project file on Mac to open my application and load the file?

I have created a Mac Java Swing application, and i have set a file extension(*.pkkt) for it in the "Info.plist" file, so when double clicking that file it opens my application.
When i do that the program runs fine. Now i need to load the (*.pkkt) project in the program, but the file path is not passed as an argument to the main(...) method in Mac as happens in Windows Operating System.
After some search i found an Apple handling jar "MRJToolkitStubs" that has the MRJOpenDocumentHandler interface to handle such clicked files. I have tried using it to load that file by implementing that Interface in the main program class, but it is not working. The implemented method is never called at the program start-up.
How does this Interface run ?
------------------------------------------------- Edit: Add a Code Sample
Here is the code i am using :
public static void main( final String[] args ) {
.
.
.
MacOpenHandler macOpenHandler = new MacOpenHandler();
String projectFilePath = macOpenHandler.getProjectFilePath(); // Always Empty !!
}
class MacOpenHandler implements MRJOpenDocumentHandler {
private String projectFilePath = "";
public MacOpenHandler () {
com.apple.mrj.MRJApplicationUtils.registerOpenDocumentHandler(this) ;
}
#Override
public void handleOpenFile( File projectFile ) {
try {
if( projectFile != null ) {
projectFilePath = projectFile.getCanonicalPath();
System.out.println( projectFilePath ); // Prints the path fine.
}
} catch (IOException e) {}
}
public String getProjectFilePath() {
return projectFilePath;
}
}
As mentioned in the comment above "getProjectFilePath()" is always Empty !

On Java 9, use Desktop.setOpenFileHandler()
The proprietary com.apple.eawt packages have been removed from recent versions of Java and has been incorporated into various methods in the Desktop class. For your specific example:
import java.awt.desktop.OpenFilesHandler;
import java.awt.desktop.OpenFilesEvent;
import java.io.File;
import java.util.List;
public class MyOpenFileHandler implements OpenFilesHandler {
#Override
public void openFiles​(OpenFilesEvent e) {
for (File file: e.getFiles​()) {
// Do whatever
}
}
}
Then elsewhere, add this:
Desktop.getDesktop().setOpenFileHandler(new MyOpenFileHandler());
The OpenFilesEvent class also has a getSearchTerm() method. Say that a person used Spotlight on macOS to search for the word "StackOverflow", then decided to open up a document. With this method, can you determine that "StackOverflow" was the word they searched for, and choose to do something with that (perhaps highlight the first occurrence of the word).

You're going to want to use the Apple Java Extensions.
They should be included in any JDK that runs on Mac OS X, but the documentation is kind of hard to get. See this answer for more details.
Specifically, you'll want to make an OpenFilesHandeler.
This code snippet should work:
import com.apple.eawt.event.OpenFilesHandeler;
import com.apple.eawt.event.AppEvent;
import java.io.File;
import java.util.List;
class MacOpenHandler implements OpenFilesHandeler {
#Override
public void openFiles(AppEvent.OpenFilesEvent e) {
List<File> files = e.getFiles();
// do something
}
}
And somewhere:
import com.apple.eawt.Application;
...
MacOpenHandeler myOpenHandeler = new MacOpenHandeler();
Application.getApplication().setOpenFileHandler(myOpenHandeler);