Problems to compile

Hi there,
I work on a Sun OS:
$ uname -snrvmapiX
SunOS sun 5.8 Generic_108528-07 sun4u sparc SUNW,Sun-Blade-100System = SunOS
Node = sun
Release = 5.8
KernelID = Generic_108528-07
Machine = sun4u
BusType = <unknown>
Serial = <unknown>
Users = <unknown>
OEM# = 0
Origin# = 1
NumCPU = 1
I have dowloaded SEA 1.03 Solaris 2.7 SPARC SDK and corresponding SEA runtime.
I have installed the packages correctly (killing the running deamon, removing previous packages and installing the new ones) but I can't get even a simple program to compile. For example:
#include <snmp/impl.h>
int main(int argc, char *argv[])
{ SSAGetTrapPort(); }
compiled with:
$ cc test.cpp -o test -L/usr/lib -lssasnmp
returns:
test.cpp: In function `int main(int, char **)':
test.cpp:14: implicit declaration of function `int SSAGetTrapPort(...)'
Could someone please tell me why this doesn't work?
Thanx!
Manuel

I'm also a PostgreSQL man, so it should be easy to communicate.
I can reproduce your problem with DBD::Oracle, and I guess that your problem is that the database is on a different machine, while "make test" assumes that it is on the same machine (like when you unset PGHOST in PostgreSQL).
The error message means that for a local database Oracle expects a local "database name" in the environment variable ORACLE_SID, but the environment variable is unset (roughly equivalent to PGDATABASE).
When you encounter connection problems with DBI, it's always a good idea to try to connect in the same way with the command line utility "sqlplus".
In your case, I would say that the equivalent connection attempt with sqlplus would be:
sqlplus scott/tiger
which will probably give you the same error message, right?
With your tnsnames.ora, I would recommend that you set the environment variable TWO_TASK to "caw".
Then Oracle will look for the entry "caw" in tnsnames.ora (this is roughly comparable to setting PGSERVICE in PostgreSQL, where PGSYSCONFDIR corresponds to Oracle TNS_ADMIN).
If your test login is not "scott/tiger", set ORACLE_USERID as described in README.login.txt.
Yours,
Laurenz Albe

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Can anybody help solve my problem with compilation?

In win XP i try to compile program.
javac Lematizator.java
Lematozator.java:85: cannot find symbol
symbol : class PodstatneMeno
location : class slovnik.Lematizator
static ArrayList<PodstatneMeno> zoznamPodstatnychMienZoSlovnika = new ArrayList<PodstatneMeno><>;
^
There are more errors this is just example, how can i repair it?
This is code:
package slovnik;
import java.io.BufferedReader;
import java.io.FileReader;
//import java.io.PrintStream;
import java.util.ArrayList;
import java.util.Vector;
public class Lematizator
     static String suborSPredlohami = "predlohy.txt";
//     static String slovnik = "slova.txt";
     static String zoznamPodstatnychMien = "podstatneMena.txt";
     static ArrayList<PodstatneMeno> predlohy = new ArrayList<PodstatneMeno>();
     static ArrayList<PodstatneMeno> zoznamPodstatnychMienZoSlovnika = new ArrayList<PodstatneMeno>();
     static ArrayList<PodstatneMeno> mozneTvarySlova = new ArrayList<PodstatneMeno>();
//     static ArrayList<String> slovaZoSlovnika;
//     static String slovo = "slovách";
     static String slovo = "slová";
//     static String slovo = "mestách";
//     static String slovo = "cestách";
     public static void main(String[] args)
          String slovo0 = "slovo";
          String slovo1 = "";
          String slovo2 = "";
          String slovo3 = "";
          String slovo4 = "";
          if (args.length>0)
               slovo0 = args[0];
          if (args.length>1)
               slovo1 = args[1];
          if (args.length>2)
               slovo2 = args[2];
          if (args.length>3)
               slovo3 = args[3];
          if (args.length>4)
               slovo4 = args[4];
          System.out.println(slovo0);
          System.out.println(slovo1);
          System.out.println(slovo2);
          System.out.println(slovo3);
          System.out.println(slovo4);
          System.out.println();
          System.out.println(Lematizator.najdiVsetkyZakladneTvary(slovo0));
          System.out.println(Lematizator.najdiVsetkyZakladneTvary(slovo1));
          System.out.println(Lematizator.najdiVsetkyZakladneTvary(slovo2));
          System.out.println(Lematizator.najdiVsetkyZakladneTvary(slovo3));
          System.out.println(Lematizator.najdiVsetkyZakladneTvary(slovo4));
          public static String najdiZakladnyTvar (String slovo)
               ArrayList<PodstatneMeno> zt = najdiZakladneTvary(slovo, false);
          if (zt.size() > 0)
               return zt.get(0).getTvar();
          else
               return null;
     public static ArrayList<String> najdiVsetkyZakladneTvary (String slovo)
          ArrayList<String> z = new ArrayList<String>();
          ArrayList<PodstatneMeno> zt = najdiZakladneTvary(slovo, true);
          for (int i = 0; i < zt.size(); i++)
                         String t = zt.get(i).getTvar();
               boolean nebolo = true;
               for (int j = 0; j < z.size(); j++)
                    if (t.equals(z.get(j)))
                         nebolo = false;
               if (nebolo)
                    z.add(t);
                    return z;
          public static ArrayList<PodstatneMeno> najdiZakladneTvary (String slovo, boolean vsetky)
               ArrayList<PodstatneMeno> vystup = new ArrayList<PodstatneMeno>();
          if (predlohy.size() == 0)
               predlohy = Lematizator.nacitajPredlohy(suborSPredlohami);
          if (zoznamPodstatnychMienZoSlovnika.size() == 0)
               zoznamPodstatnychMienZoSlovnika = Lematizator.nacitajZoznamPodstatnychMien(zoznamPodstatnychMien);
          mozneTvarySlova = Lematizator.najdiMozneTvarySlova(slovo);
          for (int i=0; i < mozneTvarySlova.size(); i++)
                         PodstatneMeno pm = mozneTvarySlova.get(i);
               if (pm.jeVZoznamePodstatnychMien(zoznamPodstatnychMienZoSlovnika))
                                   vystup.add(pm);
                    if (!vsetky)
                         return vystup;
                         return vystup;
     static ArrayList<PodstatneMeno> nacitajPredlohy(String suborSPredlohami)
               ArrayList<PodstatneMeno> vystup = new ArrayList<PodstatneMeno>();
          try
                         PodstatneMeno zt = null;
               String nemennaCast = "";
               String skratkaRod = "";
               String skratkaCislo = "";
               String skratkaPad = "";
               String koncovka = "";
               BufferedReader br = new BufferedReader(new FileReader(suborSPredlohami));
               String riadok;
               while ((riadok = br.readLine()) != null)
                                   if (riadok.equals("koniec"))
                                             br.close();
                         return vystup;
                                        if (riadok.startsWith("="))
                         zt = null;
                    if (!(riadok.startsWith("-") || riadok.startsWith("=")))
                                             riadok = (riadok+" ").replaceAll("\t",":");
                         String[] cs = riadok.split(":");
                         if (!cs[0].trim().equals(""))
                              nemennaCast = cs[0].trim();
                         if (!cs[1].trim().equals(""))
                              skratkaRod = cs[1].trim();
                         if (!cs[2].trim().equals(""))
                              skratkaCislo = cs[2].trim();
                         if (!cs[3].trim().equals(""))
                              skratkaPad = cs[3].trim();
                         koncovka = cs[4].trim();
                         PodstatneMeno p = new PodstatneMeno(nemennaCast,koncovka,skratkaRod,skratkaCislo,skratkaPad);
                         if (zt == null)
                              zt = p;
                         p.setZakladnyTvar(zt);
                         p.setPredloha (p);
                         vystup.add(p);
                              br.close();
                    catch (Exception e)
                         e.printStackTrace();
                    return vystup;
          static ArrayList<PodstatneMeno> najdiMozneTvarySlova (String slovo)
               ArrayList<PodstatneMeno> vystup = new ArrayList<PodstatneMeno>();
          for (int i=0; i< predlohy.size(); i++)
                         PodstatneMeno predloha = predlohy.get(i);
               if (slovo.endsWith(predloha.getKoncovka()))
                                   String jadro = slovo.substring(0,slovo.length()-predloha.getKoncovka().length());
                    PodstatneMeno zPredloha = predloha.getZakladnyTvar();
                    PodstatneMeno zt = new PodstatneMeno(jadro, zPredloha.getKoncovka(), zPredloha.getRod(), zPredloha.getCislo(), zPredloha.getPad(), null, zPredloha);
//System.out.println(zt);
                    vystup.add(zt);
                    return vystup;
          static ArrayList<PodstatneMeno> nacitajZoznamPodstatnychMien (String subor)
               ArrayList<PodstatneMeno> vystup = new ArrayList<PodstatneMeno>();
          try
                         BufferedReader br = new BufferedReader(new FileReader(subor));
               String riadok;
               while ((riadok = br.readLine()) != null)
                                   riadok = (riadok+" ").replaceAll("\t",":");
                    String[] cs = riadok.split(":");
                    PodstatneMeno pm = new PodstatneMeno(cs[1].trim(), cs[0].trim());
                    vystup.add(pm);
                         catch (Exception e)
                         e.printStackTrace();
               return vystup;
                    return vystup;     Thanks
Edited by: 855126 on Apr 27, 2011 11:22 AM
Edited by: EJP on 28/04/2011 21:39: added code tags. Please use them.

Please put your code within tags to make it more readable, and then someone will be more willing to offer advice.
As to your error, the message is telling you exactly what the problem is. Your code can't find the class PodstatneMeno. My first question would be, "Is PodstatneMeno in the same package as Lematizator?" If it's not, then you need to import it in your Lematizator class.

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LDFLAGS: -g
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read all the log printed above, and the README and README.help.txt files.
(Of course, you have read README by now anyway, haven't you?)
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Skip blib/lib/oraperl.ph (unchanged)
Skip blib/arch/auto/DBD/Oracle/dbdimp.h (unchanged)
Skip blib/arch/auto/DBD/Oracle/ocitrace.h (unchanged)
Skip blib/lib/Oraperl.pm (unchanged)
Skip blib/arch/auto/DBD/Oracle/Oracle.h (unchanged)
Skip blib/lib/DBD/Oracle/GetInfo.pm (unchanged)
Skip blib/arch/auto/DBD/Oracle/mk.pm (unchanged)
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Oracle.xsi:306: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
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Oracle.xsi:352: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
Oracle.xsi:352: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
Oracle.xsi:380: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
Oracle.xsi:380: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
Oracle.xsi: In function 'XS_DBD__Oracle__st_finish':
Oracle.xsi:675: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
Oracle.xsi:675: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
Oracle.xsi: In function 'XS_DBD__Oracle__st_DESTROY':
Oracle.xsi:752: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
Oracle.xsi:752: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
Oracle.xsi:766: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
Oracle.xsi:766: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
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dbdimp.c:528: warning: format '%d' expects type 'int', but argument 8 has type 'size_t'
dbdimp.c:535: warning: format '%d' expects type 'int', but argument 8 has type 'size_t'
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dbdimp.c:787: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
dbdimp.c: In function 'ora_st_cancel':
dbdimp.c:842: warning: format '%lu' expects type 'long unsigned int', but argument 8 has type 'int'
dbdimp.c: In function 'ora_db_disconnect':
dbdimp.c:879: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
dbdimp.c:879: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
dbdimp.c: In function 'ora_db_STORE_attrib':
dbdimp.c:976: warning: value computed is not used
dbdimp.c: In function 'createxmlfromstring':
dbdimp.c:1058: warning: format '%d' expects type 'int', but argument 3 has type 'STRLEN'
dbdimp.c:1066: warning: format '%ld' expects type 'long int', but argument 2 has type 'int'
dbdimp.c:1077: warning: passing argument 4 of 'OCILobWriteAppend' from incompatible pointer type
dbdimp.c: In function 'dbd_preparse':
dbdimp.c:1243: warning: value computed is not used
dbdimp.c: In function 'dbd_rebind_ph_varchar2_table':
dbdimp.c:1546: warning: format '%d' expects type 'int', but argument 3 has type 'STRLEN'
dbdimp.c:1554: warning: format '%d' expects type 'int', but argument 3 has type 'STRLEN'
dbdimp.c:1584: warning: format '%u' expects type 'unsigned int', but argument 7 has type 'long unsigned int'
dbdimp.c:1584: warning: format '%u' expects type 'unsigned int', but argument 8 has type 'long unsigned int'
dbdimp.c: In function 'dbd_rebind_ph_number_table':
dbdimp.c:1991: warning: format '%u' expects type 'unsigned int', but argument 7 has type 'long unsigned int'
dbdimp.c:1991: warning: format '%u' expects type 'unsigned int', but argument 8 has type 'long unsigned int'
dbdimp.c: In function 'dbd_rebind_ph_char':
dbdimp.c:2197: warning: format '%d' expects type 'int', but argument 5 has type 'IV'
dbdimp.c: In function 'pp_exec_rset':
dbdimp.c:2412: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
dbdimp.c:2412: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
dbdimp.c: In function 'ora_bind_ph':
dbdimp.c:2743: warning: format '%d' expects type 'int', but argument 2 has type 'IV'
dbdimp.c:2752: warning: format '%d' expects type 'int', but argument 2 has type 'IV'
dbdimp.c:2786: warning: format '%d' expects type 'int', but argument 3 has type 'IV'
dbdimp.c:2799: warning: unknown conversion type character '_' in format
dbdimp.c: In function 'ora_st_execute':
dbdimp.c:3018: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
dbdimp.c:3018: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
dbdimp.c: In function 'ora_st_execute_array':
dbdimp.c:3328: warning: unused variable 'sv2'
dbdimp.c: In function 'ora_st_finish':
dbdimp.c:3473: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
dbdimp.c:3473: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
dbdimp.c:3491: warning: format '%lu' expects type 'long unsigned int', but argument 8 has type 'int'
dbdimp.c: In function 'ora_st_destroy':
dbdimp.c:3587: warning: format '%lu' expects type 'long unsigned int', but argument 8 has type 'int'
dbdimp.c: In function 'ora_st_STORE_attrib':
dbdimp.c:3672: warning: value computed is not used
dbdimp.c: In function 'ora_st_FETCH_attrib':
dbdimp.c:3720: warning: value computed is not used
cc -c -I/usr/include/oracle/11.1/client64 -I/usr/local/lib/perl/5.10.0/auto/DBI -D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -g -DVERSION=\"1.22\" -DXS_VERSION=\"1.22\" -fPIC "-I/usr/lib/perl/5.10/CORE" -Wall -Wno-comment -DUTF8_SUPPORT -DNEW_OCI_INIT -DORA_OCI_VERSION=\"11.1.0.7\" oci8.c
oci8.c: In function 'fetch_cleanup_rset':
oci8.c:974: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
oci8.c:974: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
oci8.c: In function 'fetch_func_rset':
oci8.c:1031: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
oci8.c:1031: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
oci8.c: In function 'dbd_rebind_ph_lob':
oci8.c:1095: warning: format '%ld' expects type 'long int', but argument 2 has type 'ub4'
oci8.c: In function 'get_attr_val':
oci8.c:1655: warning: unknown conversion type character 'O' in format
oci8.c:1655: warning: format '%s' expects type 'char *', but argument 6 has type 'size_t *'
oci8.c:1655: warning: too many arguments for format
oci8.c:1672: warning: unknown conversion type character 'O' in format
oci8.c:1672: warning: format '%s' expects type 'char *', but argument 6 has type 'size_t *'
oci8.c:1672: warning: too many arguments for format
oci8.c: In function 'get_object':
oci8.c:1911: warning: format '%d' expects type 'int', but argument 6 has type 'struct OCIIter **'
oci8.c: In function 'fetch_get_piece':
oci8.c:2024: warning: format '%d' expects type 'int', but argument 6 has type 'ub1 *'
oci8.c:2047: warning: format '%d' expects type 'int', but argument 7 has type 'ub4 *'
oci8.c:2056: warning: format '%lu' expects type 'long unsigned int', but argument 8 has type 'int'
oci8.c:2061: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
oci8.c:2061: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
oci8.c: In function 'ora_describe':
oci8.c:2823: warning: format '%ld' expects type 'long int', but argument 2 has type 'ub4'
oci8.c:2963: warning: format '%d' expects type 'int', but argument 6 has type 'void *'
oci8.c: In function 'ora_st_fetch':
oci8.c:3048: warning: format '%lu' expects type 'long unsigned int', but argument 8 has type 'int'
oci8.c:3063: warning: format '%lu' expects type 'long unsigned int', but argument 8 has type 'int'
oci8.c:3074: warning: format '%lu' expects type 'long unsigned int', but argument 8 has type 'int'
oci8.c:3085: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
oci8.c:3085: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
oci8.c:3092: warning: format '%ld' expects type 'long int', but argument 2 has type 'I32'
oci8.c:3092: warning: format '%ld' expects type 'long int', but argument 3 has type 'I32'
oci8.c: In function 'init_lob_refetch':
oci8.c:3474: warning: value computed is not used
oci8.c:3549: warning: value computed is not used
oci8.c:3556: warning: format '%ld' expects type 'long int', but argument 2 has type 'ub4'
oci8.c:3596: warning: format '%ld' expects type 'long int', but argument 2 has type 'int'
Running Mkbootstrap for DBD::Oracle ()
chmod 644 Oracle.bs
rm -f blib/arch/auto/DBD/Oracle/Oracle.so
LD_RUN_PATH="/usr/lib/oracle/11.1/client64/lib" cc -shared -O2 -g -L/usr/local/lib Oracle.o dbdimp.o oci8.o -o blib/arch/auto/DBD/Oracle/Oracle.so \
-L/usr/lib/oracle/11.1/client64/lib -L/root/.cpan/build/DBD-Oracle-1.22-WXjXWy/../.. -locci -lclntsh -lpthread \
chmod 755 blib/arch/auto/DBD/Oracle/Oracle.so
cp Oracle.bs blib/arch/auto/DBD/Oracle/Oracle.bs
chmod 644 blib/arch/auto/DBD/Oracle/Oracle.bs
/usr/bin/perl "-Iblib/arch" "-Iblib/lib" ora_explain.PL ora_explain
Extracted ora_explain from ora_explain.PL with variable substitutions.
cp ora_explain blib/script/ora_explain
/usr/bin/perl "-MExtUtils::MY" -e "MY->fixin(shift)" blib/script/ora_explain
Manifying blib/man1/ora_explain.1p
Manifying blib/man3/DBD::Oracle.3pm
Manifying blib/man3/DBD::Oraperl.3pm
Some clues or just forget it!
Thanx, Alejandro

I'm also a PostgreSQL man, so it should be easy to communicate.
I can reproduce your problem with DBD::Oracle, and I guess that your problem is that the database is on a different machine, while "make test" assumes that it is on the same machine (like when you unset PGHOST in PostgreSQL).
The error message means that for a local database Oracle expects a local "database name" in the environment variable ORACLE_SID, but the environment variable is unset (roughly equivalent to PGDATABASE).
When you encounter connection problems with DBI, it's always a good idea to try to connect in the same way with the command line utility "sqlplus".
In your case, I would say that the equivalent connection attempt with sqlplus would be:
sqlplus scott/tiger
which will probably give you the same error message, right?
With your tnsnames.ora, I would recommend that you set the environment variable TWO_TASK to "caw".
Then Oracle will look for the entry "caw" in tnsnames.ora (this is roughly comparable to setting PGSERVICE in PostgreSQL, where PGSYSCONFDIR corresponds to Oracle TNS_ADMIN).
If your test login is not "scott/tiger", set ORACLE_USERID as described in README.login.txt.
Yours,
Laurenz Albe

Problem in compilation of EJBHome object

hi
I have created a remote interface,HOmeinterface ,a primary key class and a bean.
The package structure is as follows:
sampleEJB->remote interface
sampleEJB->Home interface
a similar directory structure for both bean as welas primary key class files.
Now the actual problem,
when I compile the Home inter face it gives an error stating that the remotr object cannot be found.
I checked the package structure and found everything to be proper
kindly help mecode of home interface:
package sampleEJB;
import java.rmi.RemoteException;
import javax.ejb.CreateException;
import javax.ejb.FinderException;
public interface CabinHomeRemote extends javax.ejb.EJBHome {
public CabinRemote create(Integer id)
throws CreateException, RemoteException;
public CabinRemote findByPrimaryKey(Integer pk)
throws FinderException, RemoteException;
Error thrown when compiling :
C:\Data\sampleEJB>javac CabinHomeRemote.java
CabinHomeRemote.java:9: cannot resolve symbol
symbol : class CabinRemote
location: interface sampleEJB.CabinHomeRemote
public CabinRemote create(Integer id)
^
CabinHomeRemote.java:12: cannot resolve symbol
symbol : class CabinRemote
location: interface sampleEJB.CabinHomeRemote
public CabinRemote findByPrimaryKey(Integer pk)
^
2 errors
kindly help me . I am confounded totally
thank you

but as u said there is some problem in the packaage
structure.
I tried changing the name of the package and trird
.but still could not get
What else can i change the program.
This was working well , and all of a sudden it has
starte to throw these errors.How do your errors come all of a sudden? No forewarning!
Are you using an IDE? like Eclipse. It will solve your compilation problem :)

Need HELP with objects and classes problem (program compiles)

Alright guys, it is a homework problem but I have definitely put in the work. I believe I have everything right except for the toString method in my Line class. The program compiles and runs but I am not getting the right outcome and I am missing parts. I will post my problems after the code. I will post the assignment (sorry, its long) also. If anyone could help I would appreciate it. It is due on Monday so I am strapped for time.
Assignment:
-There are two ways to uniquely determine a line represented by the equation y=ax+b, where a is the slope and b is the yIntercept.
a)two diffrent points
b)a point and a slope
!!!write a program that consists of three classes:
1)Point class: all data MUST be private
a)MUST contain the following methods:
a1)public Point(double x, double y)
a2)public double x ()
a3public double y ()
a4)public String toString () : that returns the point in the format "(x,y)"
2)Line class: all data MUST be private
b)MUST contain the following methods:
b1)public Line (Point point1, Point point2)
b2)public Line (Point point1, double slope)
b3)public String toString() : that returns the a text description for the line is y=ax+b format
3)Point2Line class
c1)reads the coordinates of a point and a slope and displays the line equation
c2)reads the coordinates of another point (if the same points, prompt the user to change points) and displays the line equation
***I will worry about the user input later, right now I am using set coordinates
What is expected when the program is ran: example
please input x coordinate of the 1st point: 5
please input y coordinate of the 1st point: -4
please input slope: -2
the equation of the 1st line is: y = -2.0x+6.0
please input x coordinate of the 2nd point: 5
please input y coordinate of the 2nd point: -4
it needs to be a diffrent point from (5.0,-4.0)
please input x coordinate of the 2nd point: -1
please input y coordinate of the 2nd point: 2
the equation of the 2nd line is: y = -1.0x +1.0
CODE::
public class Point{
     private double x = 0;
     private double y = 0;
     public Point(){
     public Point(double x, double y){
          this.x = x;
          this.y = y;
     public double getX(){
          return x;
     public double setX(){
          return this.x;
     public double getY(){
          return y;
     public double setY(){
          return this.y;
     public String toString(){
          return "The point is " + this.x + ", " + this.y;
public class Line
     private double x = 0;
     private double y = 0;
     private double m = 0;
     private double x2 = 0;
     private double y2 = 0;
     public Line()
     public Line (Point point1, Point point2)
          this.x = point1.getX();
          this.y = point1.getY();
          this.x2 = point2.getX();
          this.y2 = point2.getY();
          this.m = slope(point1, point2);
     public Line (Point point1, double slope)
          this.x = point1.getX();
          this.y = point1.getY();
     public double slope(Point point1, Point point2)//finds slope
          double m1 = (point1.getY() - point2.getY())/(point1.getX() - point2.getX());
          return m1;
     public String toString()
          double temp = this.x- this.x2;
          return this.y + " = " +temp + "" + "(" + this.m + ")" + " " + "+ " + this.y2;
          //y-y1=m(x-x1)
public class Point2Line
     public static void main(String[]args)
          Point p = new Point(3, -3);
          Point x = new Point(10, 7);
          Line l = new Line(p, x);
          System.out.println(l.toString());
}My problems:
I dont have the right outcome due to I don't know how to set up the toString in the Line class.
I don't know where to put if statements for if the points are the same and you need to prompt the user to put in a different 2nd point
I don't know where to put in if statements for the special cases such as if the line the user puts in is a horizontal or vertical line (such as x=4.7 or y=3.4)
Edited by: ta.barber on Apr 20, 2008 9:44 AM
Edited by: ta.barber on Apr 20, 2008 9:46 AM
Edited by: ta.barber on Apr 20, 2008 10:04 AM

Sorry guys, I was just trying to be thorough with the assignment. Its not that if the number is valid, its that you cannot put in the same coordinated twice.
public class Line
     private double x = 0;
     private double y = 0;
     private double m = 0;
     private double x2 = 0;
     private double y2 = 0;
     public Line()
     public Line (Point point1, Point point2)
          this.x = point1.getX();
          this.y = point1.getY();
          this.x2 = point2.getX();
          this.y2 = point2.getY();
          this.m = slope(point1, point2);
     public Line (Point point1, double slope)
          this.x = point1.getX();
          this.y = point1.getY();
     public double slope(Point point1, Point point2)//finds slope
          double m1 = (point1.getY() - point2.getY())/(point1.getX() - point2.getX());
          return m1;
     public String toString()
          double temp = this.x- this.x2;
          return this.y + " = " +temp + "" + "(" + this.m + ")" + " " + "+ " + this.y2;
          //y-y1=m(x-x1)
public class Point2Line
     public static void main(String[]args)
          Point p = new Point(3, -3);
          Point x = new Point(10, 7);
          Line l = new Line(p, x);
          System.out.println(l.toString());
}The problem is in these lines of code.
public double slope(Point point1, Point point2) //if this method finds the slope than how would i use the the two coordinates plus "m1" to
          double m1 = (point1.getY() - point2.getY())/(point1.getX() - point2.getX());
          return m1;
     public String toString()
          double temp = this.x- this.x2;
          return this.y + " = " +temp + "" + "(" + this.m + ")" + " " + "+ " + this.y2;
          //y-y1=m(x-x1)
     }if slope method finds the slope than how would i use the the two coordinates + "m1" to create a the line in toString?

Problem in Compiling Edited File

Hello
I am using Robo 8.0 for Word. My nightmare is that many times I get stuck after adding new topics or editing an existing topic with images and/or text. My files are big in size with many topics and a lot of images that are inserted as bmp. here is a snap shot of the problem that appears after compilation:
In addition, I find the !SSI\webhelp folder empty after this error.
I usually solve the problem by splitting the file into two, which is not always a good solution as I need it as one unit, or I start removing other topics or image and recompile again. This makes me think there is a size limitation!!
Please explain the cause of the problem and suggest a solution.
Regards

Hi and welcome to the RH community.
You don't say exactly what size the files you are working on are but the fact that things work when you remove content or split files would seem to indictae they are big.
However I would say that if you are producing WebHelp output that you'd be better placed in using an editor and application better suited to HTML pages. Have you considered using the RH HTML application rather than RH for Word. If keeping the Word source is a must, you can use the Link to Word feature of this application which allows you to maintain the source in Word and link these to a RoboHelp project.
Read the RoboColum(n) for a tips, tricks and musings on the Technical Communication Suite products.
Follow the RoboColum(n) on Twitter

Problem in compiling with -g option

I am using forte5.1 compiler. While compiling my whole source code with -g option, for some of the files, the compilation is successfully but for some files I am getting en error as ">> Assertion (../link/dbg_stcomm.cc, line 271) while processing srsCallbacks.C at line 0. Error code 1. make:Fatal error". If I try to compile the whole source code without -g option my whole compilation is successfull. I have downloaded all the required patches for this. Previously I was using compiler 5.0 and I was not getting any error with -g option. Can u just tell me why am I facing this problem specifically with forte5.1 and not with 5.0. How can I resolve this problem so as to compile the whole source code with -g option?

Hi,
I think you will need patch:
Patch-ID# 109490-01
Synopsis: C++ 5.1: Patch for Forte Development 6 C++ compiler
As it appears that you are hitting bug id # 4312608
"Assertion: (../links/dbg_stcomm.cc, line 271)"
Can you confirm whether you are having this patch by doing:
"CC -V" or "showrev -p"
Thanks,
Gopinath.
Sun - DTS.

Problem in compiling home interface

my home interface is this:
package examples;
public interface HelloHome extends javax.ejb.EJBHome
Hello create() throws java.rmi.RemoteException, javax.ejb.CreateException;
and on compiling i get the following error message:
cannot resolve symbol
symbol: class Hello
location: interface examples.HelloHome
Hello create() throws java.rmi.Exception,
^ javax.ejb.CreateException;
I have just started on ejbs can someone help.
thank you.

Does anyone have an answer for this query? I'm experiencing the exact same problem...
Please give some insight into this situation. Maybe it's something very simple, but when you start out like me even the smallest problem is a big one.
thanX in advance for any help given

Problem in compiling packages

I am new to Java. I am currently using Java in developing a simple system. However, my system need to import other external classes.
The main problem is i dont know how to compile this file when they are in separate folder (i am using windows). Let say the main .java is in one folder and other external .java in other folders. I knew this can be done with the use of package. the problem is when i try to compile, there is a problem.
I used to refer from the below link for many times, but still cannot get it.
http://java.sun.com/j2se/1.3/docs/tooldocs/win32/javac.html
can anyone provide me the most simple way of:
1. import from external classes into my main system
e.g: import com.jrefinery.report.Element;
2. how to compile all .java from different directory
3. after i compile, i need the .class files place in other directory
advanced thanks to those who able to provide help.
Sosan

Here's what I would do.
1. Create a directory to hold my packaged classes. For example c:\myjava\classes.
2. Create another directory to hold my source code. For example c:\myjava\source\project1. If you want to divide up the source code into multiple directories, that's ok.
3. Before compiling, "cd c:\myjava\source"
4. Compile with "javac -classpath c:\myjava\classes -d c:\myjava\classes project1\*.java project1\dir1\*.java" (This command assumes some of your .java files are in the dir1 directory.)
The -d options means put the packaged classes into this directory. It will create directories as needed in the classes directory. For example com\jrefinery.

Problem in compiling the sample applet

hello: im installed jdk 1.2.2 now i wanna folow the instruction written in the
PDF document.i did everything as it is but when i arrived to the step
"compiling the sample applet" i issue the command
" javac -g src/com/sun/javacard/samples/helloWorld/*.java"
but it doesn't work it give me a message that the command is not known.
i changed the directory where i issue the command from to c:\jdk1.1.6\bin
then he find it but i have an other problem is that he makes to error:
"package.javacard.framework not found in the import"
"import javacard.framework.*"
the second errer :
"superclass com.sun.javacard.samples.HelloWorld.applet of class com.sun.javacard.samples.HelloWorld.HelloWorld not found"
"public class HelloWorld extends applet"
i don't know why it doesn't work eventhought i folowed the steps as they are written .
can some one help me because i can"t pass to the next step if i couldn't compile those files.
thank you very much

See http://forum.java.sun.com/thread.jsp?forum=7&thread=203737

Problems to compile

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