Re: error: could not find or load main class - Java Discussion Boards

Re: how to display panel just below input panel.?

Member 109447528-Nov-14 18:25

Member 10944752

8-Nov-14 18:25

Chinese

Re: how to display panel just below input panel.?

Richard MacCutchan7-Oct-14 2:50

Richard MacCutchan

7-Oct-14 2:50

What does this mean, and what have you tried?

Re: how to display panel just below input panel.?

mybm17-Oct-14 18:00

mybm1

7-Oct-14 18:00

Actually I have two Jpanel. One JPanel which takes input and the result is to be display in another JPanel.I just want that output Jpanel to be display just below the input JPanel.

Re: how to display panel just below input panel.?

Richard MacCutchan7-Oct-14 22:26

Richard MacCutchan

7-Oct-14 22:26

OK, you have told us what you want, But what have you tried, and what problems have you encountered? Have you looked at http://docs.oracle.com/javase/tutorial/uiswing/components/panel.html[^]?

Re: how to display panel just below input panel.?

mybm18-Oct-14 2:55

mybm1

8-Oct-14 2:55

<blockquote class="quote"><div class="op">Quote:</div>/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

package Speech.WavePanel;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import javax.swing.JFrame;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;

/**
 *
 * @author saikat
 */
public class output extends javax.swing.JFrame {

    String filepath;     
    String fileContents;
    File file;
    BufferedReader br;
    /**
     * Creates new form output
     */
    public output() {
        initComponents();
        
       // JScrollPane.setSize(new java.awt.Dimension((xSize - graphFromScreen), graphVerticalSize));
      //  jScrollPane1.setPreferredSize(new java.awt.Dimension((xSize - graphFromScreen), graphVerticalSize));
       // jScrollPane1.setMinimumSize(new java.awt.Dimension((xSize - graphFromScreen), graphVerticalSize));
    
    }
    
    private void ScreenProperties()
    {
        
        
     jLabel1.setSize(new Dimension(800, 150));
     jLabel1.setPreferredSize(new Dimension(800, 150));
     
     
     JFrame frame= new JFrame();
     frame.setLocation(1650, 430);
     
      JScrollPane scrollPane = new JScrollPane(jLabel1);
      add(scrollPane, BorderLayout.CENTER);
      
                scrollPane = new JScrollPane();
		scrollPane.getViewport().add( jLabel1 );
		//JFrame.add( scrollPane, BorderLayout.CENTER );
                
      
      
     
      
        //JScrollPane pane = new JScrollPane(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
        //frame.setSize(500, 200);
       // frame.setContentPane(pane);
      
      
      
         
    }
    
    

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jScrollPane1 = new javax.swing.JScrollPane();
        jPanel1 = new javax.swing.JPanel();
        jPanel2 = new javax.swing.JPanel();
        jScrollPane3 = new javax.swing.JScrollPane();
        jLabel1 = new javax.swing.JLabel();
        jButton4 = new javax.swing.JButton();
        jButton3 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jButton1 = new javax.swing.JButton();
        jSeparator1 = new javax.swing.JSeparator();

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 100, Short.MAX_VALUE)
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 100, Short.MAX_VALUE)
        );

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);

        jScrollPane3.setHorizontalScrollBarPolicy(javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
        jScrollPane3.setVerticalScrollBarPolicy(javax.swing.ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER);
        jScrollPane3.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
        jScrollPane3.setDebugGraphicsOptions(javax.swing.DebugGraphics.NONE_OPTION);

        jLabel1.setForeground(java.awt.Color.black);
        jLabel1.setText("jLabel1");
        jScrollPane3.setViewportView(jLabel1);

        jButton4.setText("output_frame4");
        jButton4.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jButton4MouseClicked(evt);
            }
        });
        jButton4.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton4ActionPerformed(evt);
            }
        });

        jButton3.setText("output_frame3");
        jButton3.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jButton3MouseClicked(evt);
            }
        });
        jButton3.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton3ActionPerformed(evt);
            }
        });

        jButton2.setText("output_frame2");
        jButton2.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jButton2MouseClicked(evt);
            }
        });

        jButton1.setText("output_frame1");
        jButton1.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                jButton1MouseClicked(evt);
            }
        });

        javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
        jPanel2.setLayout(jPanel2Layout);
        jPanel2Layout.setHorizontalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jSeparator1, javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(jScrollPane3, javax.swing.GroupLayout.PREFERRED_SIZE, 670, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addGroup(jPanel2Layout.createSequentialGroup()
                        .addComponent(jButton1)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jButton2)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jButton3)
                        .addGap(18, 18, 18)
                        .addComponent(jButton4)))
                .addContainerGap())
        );
        jPanel2Layout.setVerticalGroup(
            jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel2Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton1)
                    .addComponent(jButton2)
                    .addComponent(jButton3)
                    .addComponent(jButton4))
                .addGap(9, 9, 9)
                .addComponent(jSeparator1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jScrollPane3, javax.swing.GroupLayout.PREFERRED_SIZE, 83, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jPanel2, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(0, 12, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>                        

    private void jButton1MouseClicked(java.awt.event.MouseEvent evt) {                                      
        // TODO add your handling code here:
        
        
         setTitle(" OUTPUT PANEL ");
        setBackground(Color.white);
            setVisible(true); 
       // setSize(450,40);
        filepath ="/home/GUI/Language_Independent/Output/Frame_1.txt";  
        file = new File(filepath);
        fileContents="";               
     //   System.out.println ("hello"); 
        try{
            br = new BufferedReader ( new FileReader ( filepath )  ) ;
        }
        catch(Exception E){
            jLabel1.setText(E.toString());
        }
     
        try{ 
            while  ((fileContents = br.readLine()) != null)   {
	        System.out.println (fileContents) ;                
                jLabel1.setText(fileContents);    
	}
 	
        br.close();
        }
        catch(Exception E2){
           jLabel1.setText(E2.toString());
        }
       
    }                                     

    private void jButton2MouseClicked(java.awt.event.MouseEvent evt) {                                      


         //setTitle("OUTPUT PANEL 2");
         setBackground(Color.WHITE);
         setVisible(true);
         //setSize(450, 40);
         
         filepath="/home/GUI/Language_Independent/Output/Frame_2.txt";
         file=new File(filepath);
         fileContents="";
         
         try
         {
             br = new BufferedReader(new FileReader(filepath));
       
         }
         catch(Exception E)
         {
           jLabel1.setText(E.toString());
           
         }
         
         try
         {
             while((fileContents= br.readLine())!=null)
             {
                 System.out.println("fileContents");
                 jLabel1.setText(fileContents);
             }
             br.close();
         }
         catch(Exception E1)
         {
             jLabel1.setText(E1.toString());
         }    
        
        
// TODO add your handling code here:
    }                                     

    private void jButton3MouseClicked(java.awt.event.MouseEvent evt) {                                      

     
   
        

     // TODO add your handling code here:
    }                                     

    private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {                                         
 
    filepath ="/home/GUI/Language_Independent/Output/Frame_4.txt";
    file =new File(filepath);
    fileContents="";
    
    try
         {
             br = new BufferedReader(new FileReader(filepath));
       
         }
         catch(Exception E)
         {
           jLabel1.setText(E.toString());
           
         }
    
    try
         {
             while((fileContents= br.readLine())!=null)
             {
                 System.out.println("fileContents");
                 jLabel1.setText(fileContents);
             }
             br.close();
         }
         catch(Exception E1)
         {
             jLabel1.setText(E1.toString());
         }    
        
    
    
    
    
        // TODO add your handling code here:
    }                                        

    private void jButton4MouseClicked(java.awt.event.MouseEvent evt) {                                      

         filepath="";
         file= new File(filepath);
         fileContents="";
         
         try
         {
             br= new BufferedReader(new FileReader(filepath)); 
         }
         catch(Exception E)
         {
           jLabel1.setText(E.toString());  
         }
            
         
         try
         {
              while((fileContents= br.readLine())!=null)
             {
                 System.out.println("fileContents");
                 jLabel1.setText(fileContents);
             }
             br.close();       
         }
         catch(Exception E1)
         {
             jLabel1.setText(E1.toString());
         }
// TODO add your handling code here:
    }                                     

    private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {                                         
   
        filepath="";
        file = new File(filepath);
        fileContents ="";
        
        
        
    // TODO add your handling code here:
    }                                        

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        
         
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(output.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(output.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(output.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(output.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>
        

        /* Create and display the form */
         SwingUtilities.invokeLater(new Runnable(){
       // java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new output().setVisible(true);
                
                
                 JScrollPane pn= new JScrollPane();
                 pn.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
                  pn.getVerticalScrollBar().setUnitIncrement(10);
                   
                 pn.setVisible(true);
               // frame.setVisible(true);
                
            }
        });
    }

    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JButton jButton3;
    private javax.swing.JButton jButton4;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane3;
    private javax.swing.JSeparator jSeparator1;
    // End of variables declaration                   
}
</blockquote>

This is the output file which I want it to display just below my input panel when actionlistener is performed at input panel .actually to make it do i need to create the output panel inside the frame which contained input panel itself? thanks in advance..

error: could not find or load main class

Member 1108183230-Sep-14 10:00

Member 11081832

30-Sep-14 10:00

0 down vote favorite

on my ubuntu terminal i was trying to compile and run the program like this

javac -cp "/usr/lib/jvm/jdk1.8.0_20/lib/gs-core-1.2.jar" GraphExplore.java

successfully compiled.now to run

java -cp "/usr/lib/jvm/jdk1.8.0_20/lib/gs-core-1.2.jar" GraphExplore

I got error saying

Error: Could not find or load main class GraphExplore

I am newbee in java.please someone help me to resovle this issue.thanks in advance.what i tried to resolve this error.i kept .class file in one folder and run i mean i kept in one path and tried to execute in that path only but it didnt work.please help me

Re: error: could not find or load main class

Richard MacCutchan30-Sep-14 21:04

Richard MacCutchan

30-Sep-14 21:04

You need to show us where, in your program, the main method is.

Re: error: could not find or load main class

Member 110818321-Oct-14 11:14

Member 11081832

1-Oct-14 11:14

Java

import org.graphstream.graph.*;
import org.graphstream.graph.implementations.*;
import java.util.Iterator;

public class GraphExplore {
    public static void main(String args[]) {
        new GraphExplore();
    }

    public GraphExplore() {
        Graph graph = new SingleGraph("tutorial 1");

        graph.addAttribute("ui.stylesheet", styleSheet);
        graph.setAutoCreate(true);
        graph.setStrict(false);
        graph.display();

        graph.addEdge("AB", "A", "B");
        graph.addEdge("BC", "B", "C");
        graph.addEdge("CA", "C", "A");
        graph.addEdge("AD", "A", "D");
        graph.addEdge("DE", "D", "E");
        graph.addEdge("DF", "D", "F");
        graph.addEdge("EF", "E", "F");

        for (Node node : graph) {
            node.addAttribute("ui.label", node.getId());
        }

        explore(graph.getNode("A"));
    }

    public void explore(Node source) {
        Iterator<? extends Node> k = source.getBreadthFirstIterator();

        while (k.hasNext()) {
            Node next = k.next();
            next.setAttribute("ui.class", "marked");
            sleep();
        }
    }

    protected void sleep() {
        try { Thread.sleep(1000); } catch (Exception e) {}
    }

    protected String styleSheet =
        "node {" +
        "   fill-color: black;" +
        "}" +
        "node.marked {" +
        "   fill-color: red;" +
        "}";
}

Re: error: could not find or load main class

Richard MacCutchan1-Oct-14 21:24

Richard MacCutchan

1-Oct-14 21:24

Strange, I cannot see anything wrong with your code. Are you sure that the compilation worked successfully and the class file exists in the directory where you are calling the java command from?

Re: error: could not find or load main class

Oscar06-Oct-14 13:18

Oscar0

6-Oct-14 13:18

Since your main declaration looks correct, it most likely the compile was not successful.

Look in the directory where you are compiling. See if the file GraphExplore.class was created.
You will get that message if it is not being created as a result of an error. As a further experiment, try misspelling the name when you run it, you will see that it is the exact same error.

Re: error: could not find or load main class

TorstenH.1-Oct-14 21:03

TorstenH.

1-Oct-14 21:03

Eclipse for Ubuntu[^]

Have fun!

regards Torsten
I never finish anyth...

Re: error: could not find or load main class

Member 1115477415-Oct-14 0:20

Member 11154774

15-Oct-14 0:20

in your buildpath,it need load jar ,so u upload this jar in your project, and then server will building it,

Deploy an ASP.NET application on WebLogic

ThetaClear29-Sep-14 3:57

ThetaClear

29-Sep-14 3:57

Hello all,
I'm a .net developer.
I have a project that I might get into.
The thing is, the servers are WebLogic.
I don't know a lot on this subject so I wanted to know if I can deploy my asp.NET application on that server (or what I have to do for that)

Thanks for any help

Re: Deploy an ASP.NET application on WebLogic

Richard MacCutchan29-Sep-14 5:30

Richard MacCutchan

29-Sep-14 5:30

See http://www.codeproject.com/Messages/3137511/Forum-Guidelines-PLEASE-READ.aspx[^].

Re: Deploy an ASP.NET application on WebLogic

ThetaClear29-Sep-14 5:33

ThetaClear

29-Sep-14 5:33

I know it's an ASP.NET application question but since it's also related to Java, I thought that here is also a relevant place to ask. But I'll try there.

Re: Deploy an ASP.NET application on WebLogic

Richard MacCutchan29-Sep-14 5:43

Richard MacCutchan

29-Sep-14 5:43

There is nothing Java related in your question.

Re: Deploy an ASP.NET application on WebLogic

ZurdoDev30-Sep-14 10:30

ZurdoDev

30-Sep-14 10:30

WebLogic is an Oracle server for running Java apps.

There are only 10 types of people in the world, those who understand binary and those who don't.

Re: Deploy an ASP.NET application on WebLogic

Richard MacCutchan30-Sep-14 21:02

Richard MacCutchan

30-Sep-14 21:02

OP's question still has nothing to do with Java programming.

Re: Deploy an ASP.NET application on WebLogic

ZurdoDev1-Oct-14 1:17

ZurdoDev

1-Oct-14 1:17

True. But I don't see a better place to put it on CP.

There are only 10 types of people in the world, those who understand binary and those who don't.

Re: Deploy an ASP.NET application on WebLogic

Richard MacCutchan1-Oct-14 1:27

Richard MacCutchan

1-Oct-14 1:27

It belongs in Q&A or Hosting & Servers, it has nothing to do with Java.

Re: Deploy an ASP.NET application on WebLogic

jschell29-Sep-14 7:53

jschell

29-Sep-14 7:53

ThetaClear wrote:
so I wanted to know if I can deploy my asp.NET application on that server (or what I have to do for that)

In general - no.

There are specialized instances such as writing a proxy or running a command line app but I doubt that is what you had in mind.

Error connecting Oracle on localhost: Could not get JDBC Connection ?

taibc27-Sep-14 5:56

taibc

27-Sep-14 5:56

Hi everyone,

I am trying to connect Oracle database from my web application using Eclipse.
But I got the error:org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection;

I used below code:

Java

public static void initDB(){
		try {
			BasicDataSource ds = new BasicDataSource();
			ds.setDriverClassName("oracle.jdbc.driver.OracleDriver");
			ds.setUrl("jdbc:oracle:thin:@localhost:1521:xe");
			ds.setUsername("mybank");
			ds.setPassword("123456");
			
			jdbcTemplate  = new JdbcTemplate(ds); // throw exceptiong after this line
			isConnected = true;
			initSystemPros();
		} catch (Exception e) {
			System.err.println("Cannot connect to DataBase");
			isConnected = false;
		}
	}

I tried to use SQL Developer to create a connection using above settings and successful.

Do you know what is wrong ?

Thanks and regards,
Tai

Re: Error connecting Oracle on localhost: Could not get JDBC Connection ?

jorgesys9-Oct-14 11:12

jorgesys

9-Oct-14 11:12

Be sure that `xe` is your `Service Name`.

If the connection is successfull but you have this exception `SQLNestedException: Cannot create PoolableConnectionFactory (Io exception: The Network Adapter could not establish the connection) at`
"

you must have an incompatible version of JDBC, install the correct one:
http://www.oracle.com/technetwork/database/enterprise-edition/jdbc-10201-088211.html

adding smileys to client server program in java

Member 1111353426-Sep-14 23:02

Member 11113534

26-Sep-14 23:02

can you please tell me the code for adding smileys in client server chatting program in java.

Re: adding smileys to client server program in java

Richard MacCutchan27-Sep-14 2:24

Richard MacCutchan

27-Sep-14 2:24

There is no such code. You need to design some smileys for yourself, and write the code in the server and client that handles them.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.