I created the program using Net Beans in Windows, it works fine. When I transferred the code alone to HP-UX, I'm encountering below error.
Sorry for my question, I am new to java.
Exception in thread "main" java.lang.NoClassDefFoundError: javaapplication2/JavaApplication2
Caused by: java.lang.ClassNotFoundException: javaapplication2.JavaApplication2
    at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:303)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
Could not find the main class: javaapplication2.JavaApplication2. Program will exit.
compiling the code gave me two classes:
JavaApplication2$1.class
JavaApplication2.class
MANIFEST.MF
Main-Class: javaapplication2.JavaApplication2
I also executed jar command inside the main directory where classes, manifest.mf and code are located.
/opt/java6/bin/jar -cvfm app.jar MANIFEST.MF *class
I'm wondering what may be the cause of the error encountered.
package javaapplication2;
import java.io.File;
import java.io.FileReader;
import java.io.*;
import java.io.PrintStream;
public class JavaApplication2 {
/**
 * @param args the command line arguments
 * @return 
 * @throws java.io.IOException
 */
public static void main(String[] args) throws IOException {
    // TODO code application logic here
  File directory = new File("/idmp/MJMN/ICMS_to_ZERORATED/src");
  //list only files
  File files[] = directory.listFiles(new FileFilter() {
      @Override
      public boolean accept (File pathname) {
          String name = pathname.getName();
          return name.startsWith("S") && pathname.isFile();
      }
  }
  );
  //read files line by line
  for (File d : files) {
       FileReader fr;
        fr = new FileReader(d);
       BufferedReader br;
        br = new BufferedReader(fr);
       String line;
       String file_name = d.getName();           
       PrintStream ps = new PrintStream("/idmp/MJMN/ICMS_to_ZERORATED/dst/" + file_name);
       PrintStream orig = System.out;
       System.setOut(ps);
       while ((line = br.readLine()) != null){
            String RCDTYP = line.substring(0,2);
                int RCDTYP_int = Integer.parseInt(RCDTYP);
           if (RCDTYP_int  == 50 ){ //read line with '50
               //System.out.println(line);
               //String CALLING_NUMBER = "";
               //String CALLED_NUMBER = "";
             //GET BILLABLE_CALL_DUR_MIN
               String tmp_emrtyp = line.substring(175,180);
               String emrtyp = tmp_emrtyp.replaceAll("\\s+","");
                    int emrtyp_int = Integer.parseInt(emrtyp);
               String emrtmm = line.substring(127,138);
               String emrtss = line.substring(138,141);
               String emrtmm_no_zero = emrtmm.replaceFirst("^0+(?!$)", "");
                    int emrtmm_int = Integer.parseInt(emrtmm_no_zero);
               String emrtss_no_zero = emrtss.replaceFirst("^0+(?!$)", "");
                    int emrtss_int = Integer.parseInt(emrtss_no_zero);
               int BCDM;
               if (emrtyp_int == 1001){
                    BCDM = 1;                     
               } else {
                    BCDM = emrtmm_int + emrtss_int;
               }
               //String tmp_BCDM = Integer.toString(BCDM);                                                       
                String Space_20 = String.format("%20s", "");
                String Space_29 = String.format("%29s", "");
                String Space_9 = String.format("%9s", "");
                String Space_5 = String.format("%5s", "");
                String Space_2 = String.format("%2s", "");
                String Space_1 = String.format("%1s", "");
                String Space_8 = String.format("%8s", "");
                String Space_7 = String.format("%7s", "");
               //Leading zeros
                String str_BCDM = String.format("%011d",BCDM);
                String CALLING_NUMBER          =line.substring(2,22);
                String CALLED_NUMBER           =line.substring(32,52);
                String CALL_DATETIME           =line.substring(92,107);
                String SERVICE_NUMBER          =Space_20;
                String CUSTOMER_NUMBER         =Space_9;
                String RATE_PLAN_CODE          =Space_5;
                String BILLABLE_CALL_DUR_MIN   =str_BCDM;
                String BILLABLE_CALL_DUR_SEC   ="000";
                String ACTUAL_CALL_DUR_MIN     =emrtmm;
                String ACTUAL_CALL_DUR_SEC     =emrtss;
                String RATED_AMT               ="000000000000000";
                String JURISDICTION_CODE       =Space_2;
                String CALL_TYPE               =tmp_emrtyp;
                String PEAK_OFFPEAK_INDICATOR  =Space_1;
                String BILLING_CYCLE           ="00";
                String SERVICE_CODE            =line.substring(57,59);
                String UNIT_OF_MEASURE         ="MIN  ";
                String CURRENCY_CODE           ="PHP";
                String FROM_CELL               =Space_5;
                String TO_CELL                 =Space_5;
                String FROM_PLACE              =Space_5 + Space_5;
                String TO_PLACE                =Space_5 + Space_5;
                String BILLDATE                =Space_8;
                String BASESTATION             =Space_5 + Space_5;
                String DATE_LAST_UPDATE        ="000000000";
                String TIME_LAST_UPDATE        ="0000000";
                String USAGE_TYPE_GLCODE       =Space_7;
                String TOLLFILE                =Space_8;
                String Filler                  =Space_29 + "|";
               System.out.println(CALLING_NUMBER          + 
                                  CALLED_NUMBER           +
                                  CALL_DATETIME           +
                                  SERVICE_NUMBER          +
                                  CUSTOMER_NUMBER         +
                                  RATE_PLAN_CODE          +
                                  BILLABLE_CALL_DUR_MIN   +
                                  BILLABLE_CALL_DUR_SEC   +
                                  ACTUAL_CALL_DUR_MIN     +
                                  ACTUAL_CALL_DUR_SEC     +
                                  RATED_AMT               +
                                  JURISDICTION_CODE       +
                                  CALL_TYPE               +
                                  PEAK_OFFPEAK_INDICATOR  +
                                  BILLING_CYCLE           +
                                  SERVICE_CODE            +
                                  UNIT_OF_MEASURE         +
                                  CURRENCY_CODE           +
                                  FROM_CELL               +
                                  TO_CELL                 +
                                  FROM_PLACE              +
                                  TO_PLACE                +
                                  BILLDATE                +
                                  BASESTATION             +
                                  DATE_LAST_UPDATE        +
                                  TIME_LAST_UPDATE        +
                                  USAGE_TYPE_GLCODE       +
                                  TOLLFILE                +
                                  Filler                  
                                    ); 
          //closing 'if'
           } 
           //String emr = line.substring(0,2);
           //System.out.println(emr);
       } br.close();
       fr.close();
       System.setOut(orig);
       ps.close();
}
    /**read file **/
   /** try {
        FileInputStream fStream = new FileInputStream(args[10]);
     BufferedReader in = new BufferedReader (new InputStreamReader(fStream));
     while (in.ready()) {
          System.out.println (in.readLine());
       }
      in.close();
    } catch (IOException e) {
        System.out.println("File input error");
    } **/
}
    }
