Java

Is it possible to scroll JFrame if so den how?

19-Oct-14 21:59

Your algorithm for calculating a perfect number is not correct; see http://en.wikipedia.org/wiki/Perfect_number[^]? You also need to initialise the values of y and sum at the beginning of each iteration of your major loop.

Re: Is it possible to scroll JFrame if so den how?

17-Oct-14 21:08

Is it possible to scroll JFrame if so den how?

17-Oct-14 21:15

See https://www.google.com/search?q=scroll+JFrame[^].

Regarding .classpath

Member 11157029

15-Oct-14 18:54

I m not able to add the external jar into classpath....can u plz help me....

error-Could not write file: .classpath.

Re: Regarding .classpath

15-Oct-14 22:02

Classpath is not a file it is a parameter specification to the javac or java commands. What exactly are you trying to do?

use of valueof(-1)

bh@r@t

14-Oct-14 0:03

1) Integer currentGroupId = Integer.valueOf(-1);

2) currentGroupId = Integer.valueOf(rs.getInt("CONSUMER_GROUP_ID"));

Please explain both of it

Re: use of valueof(-1)

what the use of valueof(-1)

14-Oct-14 0:07

Please post your question once only. Also, you can refer to the documentation[^] for basic questions.

bh@r@t

13-Oct-14 23:43

1) Integer currentGroupId = Integer.valueOf(-1);

2) currentGroupId = Integer.valueOf(rs.getInt("CONSUMER_GROUP_ID"));

Please explain both of it

How to set color for text in java.

Re: How to set color for text in java.

12-Oct-14 20:36

 
private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {                                         
   
       filepath ="/home/GUI/Language_Independent/Output/Frame_1.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);
                 
                 
                 String str = "a";
          
            while(br.readLine()== str) {
               
             jLabel1.setForeground(Color.red);
            }
             }
             br.close();
         }
         catch(Exception E1)
         {
             jLabel1.setText(E1.toString());
         }    
        
    
        
        
    // TODO add your handling code here:
    }         
 
Frame_1 consist of generate text eg:abcdefgh..
for this generated file i want to set color for specific char eg a=red so on.
 jLabel1.setForeground(Color.red);
is not working at all.Please someone suggest and thnks in advanced

Re: How to set color for text in java.

12-Oct-14 21:19

Your test in the sub loop probably never yields true. Have you stepped through your code with the debugger?

Re: How to set color for text in java.

12-Oct-14 22:55

ya i also observed it is not going inside the loop condition is not satisfied but i can solved it out is my logic wrong ?

Extracting text from docx using java

13-Oct-14 5:00

Your logic does not make much sense. You read a line from the file, then you are trying to use a while loop to read another line of text and compare it with the string a. You should read a line and then test if it contains the character you are looking for. However, note that you cannot set different characters to different colours. You can only use a single colour for the entire label.

Member 11144357

10-Oct-14 8:58

i want to display a word file into my application.
It is like extracting the text to put in JTextArea.

Help what best API can use?
an easy to understand! Confused | :confused:

Re: Extracting text from docx using java

how to display panel just below input panel.?

10-Oct-14 21:25

See http://www.docx4java.org[^].

7-Oct-14 0:41

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

tony_ming

7-Oct-14 2:36

这么奇葩的需求

7-Oct-14 2:50

What does this mean, and what have you tried?

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.

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[^]?

error: could not find or load main class

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..

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