I updated java from jre 1.5.0.11 to jre1.6.01 and now my aplication returns 14 errors. Some of the errors are :
Canno find symbol
symbol:class regex.
Then I deleted that update but it still doesn't work. Don't know what to do. Do I need to reinstall all java package?
The 1. error is Contact.java:17: cannot find symbol
symbol : class Regex
loation: class Contact
Regex r=new Regex();
The class regex is made by me. I should tell that the my class is regex which importsjava.util.regex: import java.util.regex.*;
public class Regex {
//ulazne varijable
String patStr ="(\\+)*(385|0385|00385)*(\\s)*(\\W)*(0)*(\\W)*(\\s|\\d)*(\\d{3})(\\s|\\d|-)(\\d{3})(\\s|\\d)(\\D)";
String tekst="pope:098 9523 616 mob";
//izlazne varijabe
int start=-1;
int end=-1;
public void find() {
// Compile regular expression
try{
//Pattern p = Pattern.compile(patStr);
//Pattern p = Pattern.compile(patStr, Pattern.CASE_INSENSITIVE);
Pattern p = Pattern.compile(patStr, Pattern.UNICODE_CASE);
Matcher m = p.matcher(tekst);
boolean matchFound = m.find();// true
//System.out.println(matchFound);
if(matchFound==true){
// Get matching string
String match = m.group(); // b
// Get indices of matching string
start = m.start();// 2
end = m.end();// 3
// the end is index of the last matching character + 1
//System.out.println("start= "+start+" end= " + end);
}
else start=-1;
}catch(PatternSyntaxException pse){
System.out.println(pse.getMessage());
}
}
}
Sorry I' ve written rong Contact. class and Regex.class!
But why I don't need to set class path when I compile some other of my classes for example Mysql.class
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.*;
public class Mysql {
String email; // ulazna varijabla
String tel;// ulazna varijabla
String mob=null;
String place=null;
int reg=0;
String link=null;
float price=0;
String pic1;
String pic2;
String pic3;
public void save (){
//email="zdravko.eskinja@hrbi.hr";//za testne svrhe
//email="nikola.mikulic@hrbi.hr";// za testne svrhe
//tel=" 091 534 9329";
//id=5; //indeks podatka za testne svrhe
int InIt=0;// flag oznacava da li je upisivanje uspjelo ili vec postoji neki takava email
int id;// varijablakoja se sama postavlja - indeks podataka
try {
// The newInstance() call is a work around for some
// broken Java implementations
Class.forName("com.mysql.jdbc.Driver");
} catch (Exception ex) {
// handle the error
System.out.println("ForNameException: " + ex.getMessage());
}
Connection conn = null;
try {
conn =
DriverManager.getConnection("jdbc:mysql://localhost:3306/apartmani" ,"root","10000000");
// Do something with the Connection
Statement stmt = conn.createStatement();
ResultSet rs;
/* rs = stmt.executeQuery("select email from people where id=1");
while ( rs.next() ) {
String Pemail = rs.getString("email");
System.out.println(Pemail);
}
*/
rs=stmt.executeQuery("select max(id) from people"); // trazim redni broj zadnjeg podatka
Integer MaxValue = new Integer(-1);
if(rs.next()){
MaxValue = rs.getInt(1);
}
id=MaxValue+1;
PreparedStatement stmt2 = null;
stmt2 = conn.prepareStatement("INSERT INTO people VALUES ('"+id+"','"+email+"','"+tel+"',NULL,NULL,'"+reg+"',NULL,'"+price+"',?,?,?)");
stmt2.setString(1, pic1);
stmt2.setString(2, pic2);
stmt2.setString(3, pic3);
stmt2.executeUpdate();
ResultSet r2 = stmt2.getResultSet();
//stmt.executeUpdate("INSERT INTO people VALUES('"+id+"',+'"+email+"','"+tel+"',NULL,NULL,0,NULL,0,NULL,'"+pic2+"',NULL)");
conn.close();
InIt=1; //uspjelo je upisivanje u tablicu
System.out.println("InIt = " + InIt);
} catch (SQLException ex) {
// handle any errors
System.out.println("SQLException: " + ex.getMessage());
System.out.println("SQLState: " + ex.getSQLState());
System.out.println("VendorError: " + ex.getErrorCode());
}
} //zavr歛va metoda
} //zavr歛va klasa
> >I'm confused now! Regex is in C:\Program
> Files\Java\jdk1.5.0_11\src.zip >Exactly in
> java/util/regex. I imported it, but got the same
>
> use C:\Program
> Files\Java\jdk1.5.0_11\jre\lib\rt.jar
instead.
There is never (well almost never) any need to specify the rt.jar to use since both java and javac pick it up automatically.
> which command..
Reply #8!
> I think there is no need to set
> path.. they are in the sam directory
But it won't hurt to try it will it?
> I'm quite sure that it worked before my java update,
I'm not because nothing should change expect the PATH (not the classpath) to the jre/bin directory.
> so my only idea is to reinstall jre, jdk and all
> connected to java.
Which is silly!
> Yes I restarted it if you mean that.
> For Sabre150:
> Wrote this:
> > javac -classpath
> C:\projects\aplication\Frita1005\Contact.java Contact
> .java
>
> Got the same
THAT IS NOT WHAT I SAID TO DO!
I give up. You obviously don't listen.
>javac -classpath C:\projects\aplication\Frita1005\Contact.java Contact .java
Sir,
Do the following :
1 - open MS-DOS
2 - type : cd C:\projects\aplication\Frita1005\ then press [Enter]
3 - compile like the following: javac -classpath . *.java
4 - tell us what happens plz
Copy of Mysql.java:7: class Mysql is public, should be declared in a file named Mysql.java
public class Mysql {
Mysql.java:7: duplicate class: Mysql
public class Mysql {
Note: Glavni.java uses or overrides a deprecated API.
Note: Recompile with -Xlint: deprecation for details.
2 errors
> not that the same
> I got 14 errors like can't find symbol
> symbol class regex
If you only got warnings when you compiled with
javac -classpath . *.java
then all your java classes compiled OK.
What command are you typing and what is the full error set?
C:\projects\aplication\Frita1005>javac Contact.java
Contact.java:17: cannot find symbol
symbol : class Regex
location: class Contact
Regex r=new Regex();
^
Contact.java:17: cannot find symbol
symbol : class Regex
location: class Contact
Regex r=new Regex();
^
Contact.java:105: operator + cannot be applied to Regex.start,int
phone =LineBuff.substring(r.start+1,r.en
d-1);//izdvajam adresu i smje
stam je u zasebni string
^
Contact.java:105: cannot find symbol
symbol : method substring(<nulltype>,int)
location: class java.lang.String
phone =LineBuff.substring(r.start+1,r.en
d-1);//izdvajam adresu i smje
stam je u zasebni string
^
Contact.java:139: operator + cannot be applied to Regex.start,int
pic=line.substring(r.start+9,r.end-1);
^
Contact.java:139: cannot find symbol
symbol : method substring(<nulltype>,int)
location: class java.lang.String
pic=line.substring(r.start+9,r.end-1);
^
Contact.java:157: operator + cannot be applied to Regex.start,int
sirina=whb.substring(r.start+7,r.end);
^
Contact.java:166: operator + cannot be applied to Regex.start,int
visina=whb.substring(r.start+8,r.end);
^
Contact.java:204: operator + cannot be applied to Regex.start,int
Sflag+=(r.start+1);
^
Contact.java:204: inconvertible types
found: <nulltype>
required: int
Sflag+=(r.start+1);
^
Contact.java:205: operator + cannot be applied to Regex.start,int
PomT=PomT.substring(r.start+1);
^
Contact.java:205: cannot find symbol
symbol : method substring(<nulltype>)
location: class java.lang.String
PomT=PomT.substring(r.start+1);
^
Contact.java:292: cannot find symbol
symbol : class Mysql
location: class Contact
Mysql DB=new Mysql();
^
Contact.java:292: cannot find symbol
symbol : class Mysql
location: class Contact
Mysql DB=new Mysql();
^
14 errors
C:\projects\aplication\Frita1005>
> I listenn, but don't understand. What I messed up now?
To break it down
1) javac says compile
2) -classpath .says use this directory (that is what the . signifies) to find any classes that are not system classes
3) *.javaAll my java files in this directory.
Thank you guys, but I'm obviously to dumb to get it. I see that generated .class files but when I run class java which uses method from Contact I get this:
C:\projects\aplication\Frita1005>java Testing
Exception in thread "main" java.lang.NoClassDefFoundError: Testing
C:\projects\aplication\Frita1005>
