Displaying files in java

Display files in java windows

Now I am in a need to display text along with running of the code side by side. Maybe your’s. Question: I’m trying to move my jframe to second display automatically in windows 10 but its not working, I’m using JDK8, and video drivers are upto date below is my code:

Display files in java windows

Hi I want to display files name in a windows with JFrame but it don’t work, I don’t know how to add a new element in arrayList for each files I’m short of idea.

import java.io.File; import java.io.IOException; import javax.swing.JFrame; public class InterfaceGraphique extends JFrame < private static final long serialVersionUID = 1L; public InterfaceGraphique() < this.setTitle("My first Window"); this.setSize(800,1000); this.setLocationRelativeTo(null); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // First Graph Object Graph graph = new Graph(); String Path = "./TEST"; try < parcourir2(Path); >catch (IOException e) < e.printStackTrace(); >this.setContentPane(graph); this.setVisible(true); > public static void parcourir2 (String Path) throws IOException < String[] Name = ; Graph graph = new Graph(); File repertoire = new File(Path); File[] liste = repertoire.listFiles(); int y = 150; if (liste != null) < for (int i = 0; i < liste.length; i++) < if (liste[i].isDirectory()) < parcourir2(liste[i].getAbsolutePath()); >if(liste[i].isFile()) < Point Name[i] = new Point(liste[i].getName(),150,y,"normal"); graph.addPoint(Nom[i]); System.out.println(liste[i] + "\n"); Test.TestFile.Afficher(liste[i]); >y+=50 ; > > else < System.err.println( "Nom de repertoire invalide"); >> > 

and there is the class graph :

import java.awt.Graphics; import javax.swing.JPanel; import java.awt.Color; import java.awt.Font; import java.util.ArrayList; import java.util.List; public class Graph extends JPanel < private static final long serialVersionUID = 1L; Listpoints = new ArrayList(); @Override public void paintComponent(Graphics g) < System.out.println("Je suis exécutée !"); for (Point point : points) < if(point.getEtat().contentEquals("erreur")) < Font font = new Font("Courier", Font.BOLD, 20); g.setFont(font); g.setColor(Color.red); >else if(point.getEtat().contentEquals("normal")) < Font font = new Font("Courier", Font.BOLD, 20); g.setFont(font); g.setColor(Color.black); >else if(point.getEtat().contentEquals("valide")) < Font font = new Font("Courier", Font.BOLD, 20); g.setFont(font); g.setColor(Color.green); >g.drawString(point.getFichier(), point.getX(), point.getX()); > > public void addPoint(Point point) < points.add(point); >public static void main(String[] args) < @SuppressWarnings("unused") InterfaceGraphique ig = new InterfaceGraphique(); >> 

It’s the final step for my project it’s very important, thanks for help I search since a long time.

1. None of your methods (other than main() ) should be static.
2. It is rarely a good idea to extend JFrame.
3. Your class InterfaceGraphique serves no useful purpose.
4. rcourir2() should be an instance method of Graph.
5. All of this should be done on the EventDispatchThread, not on the main thread. Your main should create a Runnable to run on the EDT, and all of the GUI stuff done in its run() method.
6. In that run method, create a JFrame, create a Graph, add the graph to the frame, set its size or pack it, and make it visible.

Can Java display a dialog without changing the active window?, I’d like to display a modal (progress) dialog above a Frame , even if that Frame isn’t the active window. However, displaying a dialog

Java swing tutorial [02] — Display window at center of screen

Find the source code here -https://bushansirgur.in/java-swing-display-jframe-window-at Duration: 3:00

Java swing tutorial [01]

Find the source code here -https://bushansirgur.in/java-swing-display-basic-window-example Duration: 3:31

Creating another window for just displaying text + swing

I currently have a window frame with panels inside and am using it to run my program. Now I am in a need to display text along with running of the code side by side.

The problem with displaying it in the same window is that it minimizes the total screen area which I am using for input handling.

Thus I decided to create a dialog box and dump all the text inside.

This proved to be a bad decision as sometimes the output is really large and dialog boxes do not contain the scroll bar.

Can anyone tell me what’s the best way to proceed?

I just want suggestions to what should I try and do not need any code part for it as I would like to do that on my own 🙂

• Create a new JWindow (or JFrame, one tutorial here: http://download.oracle.com/javase/tutorial/uiswing/components/frame.html)
• Inside of it, create a new JTextArea and dump all your text there
• to get the scrolling, create a new JScrollPane around your JTextArea. Tutorial: http://download.oracle.com/javase/tutorial/uiswing/components/scrollpane.html

You should follow tradition and use either:

• One JFrame that will host your application and open any number of JDialog s your for your scrolling text etc.

JFrame is a top-level container and every application should have only one. You do not loose any functionality this way, and you stick with the standards, which will definitely make somebody’s life easier in the future. Maybe your’s.

Getting a JFrame to display floating on tiling window managers, You can then customize and add a JPanel with the layout and components you need in your application. The size of the window should be set

What is the best way to move JFrame to 2nd display in Windows 10

I’m trying to move my jframe to second display automatically in windows 10 but its not working, I’m using JDK8, and video drivers are upto date below is my code:

import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import javax.swing.JFrame; import javax.swing.JLabel; public class DualMonitor < public static void main(String. args) < GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice[] gs = ge.getScreenDevices(); javax.swing.JOptionPane.showConfirmDialog((java.awt.Component) null, "Found : " + gs.length, "screen detected ?", javax.swing.JOptionPane.DEFAULT_OPTION); for (int j = 0; j < gs.length; j++) < GraphicsDevice gd = gs[j]; JFrame frame = new JFrame(gd.getDefaultConfiguration()); frame.setTitle("I'm on monitor #" + j); frame.setSize(400, 200); frame.add(new JLabel("hello world")); frame.setVisible(true); >> > 

Issue is resolved by using setLocationRelativeTo , setUndecorated and setExtendedState(JFrame.MAXIMIZED_BOTH) check below:

import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import javax.swing.JFrame; import javax.swing.JLabel; public class DualMonitor < public static void main(String. args) < GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice[] gs = ge.getScreenDevices(); javax.swing.JOptionPane.showConfirmDialog((java.awt.Component) null, "Found : " + gs.length, "screen detected ?", javax.swing.JOptionPane.DEFAULT_OPTION); for (int j = 0; j < gs.length; j++) < GraphicsDevice gd = gs[j]; JFrame dualview = new JFrame(gd.getDefaultConfiguration()); JFrame frame = new JFrame(); frame.setLocationRelativeTo(dualview); dualview.dispose(); frame.setUndecorated(true); frame.setTitle("I'm on monitor #" + j); frame.setSize(400, 200); frame.add(new JLabel("hello world")); frame.setExtendedState(JFrame.MAXIMIZED_BOTH); frame.setVisible(true); >> > 

Java Swing — Why is my first window not disposing/closing?, I’m wondering how would I change the display of the frame then? Should I use panels for each display i want? – data_pi. Jun 4, 2017 at 5:42.

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How to display all the files in a directory using Java

Following example shows how to display all the files contained in a directory using list method of File class.

import java.io.*; public class Main < public static void main(String[] args) < File dir = new File("C:"); String[] children = dir.list(); if (children == null) < System.out.println( "Either dir does not exist or is not a directory"); >else < for (int i = 0; i< children.length; i++) < String filename = children[i]; System.out.println(filename); >> > >

Result

The above code sample will produce the following result.

build build.xml destnfile detnfile filename manifest.mf nbproject outfilename src srcfile test

The following is an another example to display all the files in a directory.

import java.io.File; public class ReadFiles < public static File folder = new File("C:\\Apache24\\htdocs"); static String temp = ""; public static void main(String[] args) < System.out.println("Reading files under the folder "+ folder.getAbsolutePath()); listFilesForFolder(folder); >public static void listFilesForFolder(final File folder) < for (final File fileEntry : folder.listFiles()) < if (fileEntry.isDirectory()) < listFilesForFolder(fileEntry); >else < if (fileEntry.isFile()) < temp = fileEntry.getName(); if ((temp.substring(temp.lastIndexOf('.') + 1, temp.length()).toLowerCase()).equals("txt"))System.out.println( "File = " + folder.getAbsolutePath()+ "\\" + fileEntry.getName()); >> > > >

The above code sample will produce the following result.

Reading files under the folder C:\Apache24\htdocs File= C:\Apache24\htdocs\android\bkp\end.txt File= C:\Apache24\htdocs\android\end.txt File= C:\Apache24\htdocs\cpp_standard_library\images\code.txt File= C:\Apache24\htdocs\java\Java - Data Structures.txt File= C:\Apache24\htdocs\java\Java - Inheritance.txt File= C:\Apache24\htdocs\scripts\easyui\changelog.txt

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How to Display the Contents of a Directory in Java

Displaying the contents of a directory in Java can be accomplished using the File class. This class provides the listFiles method that returns a list of File objects for a given directory. The objects may represent files or subdirectories. To understand how to display the contents of a directory in Java, follow these four steps.

1. Open your text editor and type in the following Java statements:The program instantiates a File object and passes to the constructor the directory whose contents are to be displayed. Replace the directory shown with a directory on your file system that you know contains files and at least one subdirectory. The listFiles method returns an array of File objects. The program iterates through the array and tests each entry. A message is displayed indicating if the object is a file or a directory. The name of the entry is also displayed.
2. Save your file as DisplayTheContentsOfADirectory.java .
3. Open a command prompt and navigate to the directory containing your Java program. Then type in the command to compile the source and hit Enter .
4. Type in the command to run your program and hit Enter .Verify that the output displays all files and subdirectories in the directory you specified in the File constructor parameter.

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