RE: Bizzare bug with my class and sharing values between different instances
Hi,
In the future, please mark off-topic (i.e. not having to do with Tomcat,
which is the case with your general Java question) subjects as such by
prepending [OFF-TOPIC] to the subject line. Thanks,
Yoav Shapira
Millennium Research Informatics
-Original Message-
From: Isen,Ciji [mailto:[EMAIL PROTECTED]
Sent: Friday, August 06, 2004 5:33 PM
To: Tomcat Users List
Subject: Re: Bizzare bug with my class and sharing values between
different
instances
I dont think a static member is what you wanted. What you seem to want
to is to store a data object.
That be the case there is no point making them static. remove the
static
key word in.
private static int iNum;
private static String sString;
and try.
Gig 'em,
Ciji Isen
ps: If you where to use an IDE like Eclipse or so I think it would have
suggested this as you write it.
Thomas Joseph Olaes wrote:
Hello, list!
I am currently busting my brain over this problem... I have the
following
class:
package net.olaes;
import java.lang.String;
public class NumAndString {
private static int iNum;
private static String sString;
public NumAndString(int iNum, String sString){
this.iNum = iNum;
this.sString = sString;
}
public int getNum(){
return this.iNum;
}
public String getString(){
return this.sString;
}
}
When I try to do the following in my JSP:
Vector v = new Vector();
v.add(new NumAndString(1, a));
v.add(new NumAndString(2, b));
v.add(new NumAndString(3, c));
Iterator i = v.iterator();
while(i.hasNext()){
NumAndString nasThisOne = (NumAndString) i.next();
out.println(nasThisOne.getNum());
out.println(nasThisOne.getString());
}
I get:
3
c
3
c
3
c
I don't understand what I'm doing wrong, my gut says to check my class
definition, but I don't even know how to google up this problem
because I've never seen it before.
Anywho, I'll keep checking the net for my problem, but if anyone has a
quickie solution to my class up above, please help.
Thank you very much for your time and assistance in advance.
-TJ
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RE: Bizzare bug with my class and sharing values between different instances
Your intended instance members are static. That means that all
instances of the class share them. That's not what you want.
Benjamin J. Armintor
Operations Systems Specialist
ITS-Systems: Mainframe Group
University of Texas - Austin
tele: (512) 232-6562
email: [EMAIL PROTECTED]
-Original Message-
From: Thomas Joseph Olaes [mailto:[EMAIL PROTECTED]
Sent: Friday, August 06, 2004 4:05 PM
To: [EMAIL PROTECTED]
Subject: Bizzare bug with my class and sharing values between different
instances
Hello, list!
I am currently busting my brain over this problem... I have the
following class:
package net.olaes;
import java.lang.String;
public class NumAndString {
private static int iNum;
private static String sString;
public NumAndString(int iNum, String sString){
this.iNum = iNum;
this.sString = sString;
}
public int getNum(){
return this.iNum;
}
public String getString(){
return this.sString;
}
}
When I try to do the following in my JSP:
Vector v = new Vector();
v.add(new NumAndString(1, a));
v.add(new NumAndString(2, b));
v.add(new NumAndString(3, c));
Iterator i = v.iterator();
while(i.hasNext()){
NumAndString nasThisOne = (NumAndString) i.next();
out.println(nasThisOne.getNum());
out.println(nasThisOne.getString());
}
I get:
3
c
3
c
3
c
I don't understand what I'm doing wrong, my gut says to check my class
definition, but I don't even know how to google up this problem because
I've never seen it before.
Anywho, I'll keep checking the net for my problem, but if anyone has a
quickie solution to my class up above, please help.
Thank you very much for your time and assistance in advance.
-TJ
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
RE: Bizzare bug with my class and sharing values between different instances
The problem is that your data members are static. That means that for each
instance of the class, they all point to the same data member.
Robert S. Harper
801.265.8800 ex. 255
-Original Message-
From: Thomas Joseph Olaes [mailto:[EMAIL PROTECTED]
Sent: Friday, August 06, 2004 3:05 PM
To: [EMAIL PROTECTED]
Subject: Bizzare bug with my class and sharing values between different
instances
Hello, list!
I am currently busting my brain over this problem... I have the following
class:
package net.olaes;
import java.lang.String;
public class NumAndString {
private static int iNum;
private static String sString;
public NumAndString(int iNum, String sString){
this.iNum = iNum;
this.sString = sString;
}
public int getNum(){
return this.iNum;
}
public String getString(){
return this.sString;
}
}
When I try to do the following in my JSP:
Vector v = new Vector();
v.add(new NumAndString(1, a));
v.add(new NumAndString(2, b));
v.add(new NumAndString(3, c));
Iterator i = v.iterator();
while(i.hasNext()){
NumAndString nasThisOne = (NumAndString) i.next();
out.println(nasThisOne.getNum());
out.println(nasThisOne.getString());
}
I get:
3
c
3
c
3
c
I don't understand what I'm doing wrong, my gut says to check my class
definition, but I don't even know how to google up this problem
because I've never seen it before.
Anywho, I'll keep checking the net for my problem, but if anyone has a
quickie solution to my class up above, please help.
Thank you very much for your time and assistance in advance.
-TJ
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: Bizzare bug with my class and sharing values between different instances
- remove the static keyword,
package net.olaes;
import java.lang.String;
public class NumAndString {
private int iNum; //should NOT be static
private String sString;
public NumAndString(int iNum, String sString){
this.iNum = iNum;
this.sString = sString;
}
- Original Message -
From: Thomas Joseph Olaes [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, August 06, 2004 4:05 PM
Subject: Bizzare bug with my class and sharing values between different instances
Hello, list!
I am currently busting my brain over this problem... I have the following class:
package net.olaes;
import java.lang.String;
public class NumAndString {
private static int iNum;
private static String sString;
public NumAndString(int iNum, String sString){
this.iNum = iNum;
this.sString = sString;
}
public int getNum(){
return this.iNum;
}
public String getString(){
return this.sString;
}
}
When I try to do the following in my JSP:
Vector v = new Vector();
v.add(new NumAndString(1, a));
v.add(new NumAndString(2, b));
v.add(new NumAndString(3, c));
Iterator i = v.iterator();
while(i.hasNext()){
NumAndString nasThisOne = (NumAndString) i.next();
out.println(nasThisOne.getNum());
out.println(nasThisOne.getString());
}
I get:
3
c
3
c
3
c
I don't understand what I'm doing wrong, my gut says to check my class
definition, but I don't even know how to google up this problem
because I've never seen it before.
Anywho, I'll keep checking the net for my problem, but if anyone has a
quickie solution to my class up above, please help.
Thank you very much for your time and assistance in advance.
-TJ
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: Bizzare bug with my class and sharing values between different instances
I dont think a static member is what you wanted. What you seem to want
to is to store a data object.
That be the case there is no point making them static. remove the static
key word in.
private static int iNum;
private static String sString;
and try.
Gig 'em,
Ciji Isen
ps: If you where to use an IDE like Eclipse or so I think it would have
suggested this as you write it.
Thomas Joseph Olaes wrote:
Hello, list!
I am currently busting my brain over this problem... I have the following class:
package net.olaes;
import java.lang.String;
public class NumAndString {
private static int iNum;
private static String sString;
public NumAndString(int iNum, String sString){
this.iNum = iNum;
this.sString = sString;
}
public int getNum(){
return this.iNum;
}
public String getString(){
return this.sString;
}
}
When I try to do the following in my JSP:
Vector v = new Vector();
v.add(new NumAndString(1, a));
v.add(new NumAndString(2, b));
v.add(new NumAndString(3, c));
Iterator i = v.iterator();
while(i.hasNext()){
NumAndString nasThisOne = (NumAndString) i.next();
out.println(nasThisOne.getNum());
out.println(nasThisOne.getString());
}
I get:
3
c
3
c
3
c
I don't understand what I'm doing wrong, my gut says to check my class
definition, but I don't even know how to google up this problem
because I've never seen it before.
Anywho, I'll keep checking the net for my problem, but if anyone has a
quickie solution to my class up above, please help.
Thank you very much for your time and assistance in advance.
-TJ
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: Bizzare bug with my class and sharing values between different instances
Thanks alot everyone!
For some reason I thought I had to declare a class variable static so
the different functions inside would be able to access the variable.
-TJ
On Fri, 06 Aug 2004 16:32:40 -0500, Isen,Ciji [EMAIL PROTECTED] wrote:
I dont think a static member is what you wanted. What you seem to want
to is to store a data object.
That be the case there is no point making them static. remove the static
key word in.
private static int iNum;
private static String sString;
and try.
Gig 'em,
Ciji Isen
ps: If you where to use an IDE like Eclipse or so I think it would have
suggested this as you write it.
Thomas Joseph Olaes wrote:
Hello, list!
I am currently busting my brain over this problem... I have the following class:
package net.olaes;
import java.lang.String;
public class NumAndString {
private static int iNum;
private static String sString;
public NumAndString(int iNum, String sString){
this.iNum = iNum;
this.sString = sString;
}
public int getNum(){
return this.iNum;
}
public String getString(){
return this.sString;
}
}
When I try to do the following in my JSP:
Vector v = new Vector();
v.add(new NumAndString(1, a));
v.add(new NumAndString(2, b));
v.add(new NumAndString(3, c));
Iterator i = v.iterator();
while(i.hasNext()){
NumAndString nasThisOne = (NumAndString) i.next();
out.println(nasThisOne.getNum());
out.println(nasThisOne.getString());
}
I get:
3
c
3
c
3
c
I don't understand what I'm doing wrong, my gut says to check my class
definition, but I don't even know how to google up this problem
because I've never seen it before.
Anywho, I'll keep checking the net for my problem, but if anyone has a
quickie solution to my class up above, please help.
Thank you very much for your time and assistance in advance.
-TJ
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: Re: Bizzare bug with my class and sharing values between different instances
On Fri, Aug 06, 2004 at 02:57:21PM -0700, Thomas Joseph Olaes wrote: : For some reason I thought I had to declare a class variable static so : the different functions inside would be able to access the variable. Only if those methods themselves are static. static data = class data = used in a static context non-static data = (per-)object data = individual to the object -QM -- software -- http://www.brandxdev.net tech news -- http://www.RoarNetworX.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
