Vector with in a hashmap

I have made an object firm and stored it in a HashMap with FirmId as the key. Now I have a a table with fields firm_id, code and count so in this I want to create a vector and store this table in it. Then whereever the firm_id matches in the HashMap I want to save the vector in that HashMap. Is this possible? How?

Crosspost http://forum.java.sun.com/thread.jspa?threadID=758181&messageID=4330541#4330541

Similar Messages

How to create Vector with reference to Collection

hello experts,
can someone let me know how to create vector with reference to Collection interface.
Collection is an interface. and we cant create an instance of it. i'm not clear of what to pass in that constructor.
Vector v = new Vector (Collection c);
what are the possible objects of 'c'
post some example code please.
thanks

Ever heard of reading the javadocs?
"Collection is an interface. and we cant create an instance of it." - you don't understand interfaces, then.
// I certainly can create a Collection - here's one
Collection c = new ArrayList();
// Now I'll add some Strings to my Collection.
c.add("foo");
c.add("bar");
c.add("baz");
// Now I'll make a Vector out of it.
Vector v = new Vector(c);%

Can i save a vector with gradient mesh as isolated .PNG?

Hi,
Can i save a vector with gradient mesh as isolated .PNG?
It has some effects, so if i'm taking it out from the blue background it becomes darker.
Any advice? I need it isolated png for using it in an iOS app.
Many thanks

I am using Illustrator CS6, on Mac.
I can't copy and paste the "cloud" into a new document to save it, because it looses the effect of those filters (since the background is no longer behind it).
Sorry if im not explaining it right, i'm a beginner in illustrator. Can i group both the "cloud" and the blue background, to get just one shape: the realistic white cloud?
P.S: i can make a link with the .esp file of the clouds, if it helps.

Replacing vectors with better collection

Hi,
My Netbeans IDE is giving me a hint that vectors (which I am using to build custom table models from AbstractTableModel) are obsolete.
What should I replace vectors with, or what collection should I use to build custom table models, any example will be appreciated.
Thanks

jverd wrote:
Use ArrayList instead of Vector.
However, interaction with legacy GUI APIs is one commons place where you have to use Vector. I'm not sure if AbstractTableModel falls into that category, but you can find out easily enough.Unlike DefaultTableModel, AbstractTableModel makes no assumptions about how the data must be stored. That is why it is useful. It can be used to adapt other data structures to TableModel without the need to copy the data.

Element-by-element multiplication of a vector with matrix rows

I want to element-by-element multiply a Vector with the rows of a Matrix ,in the most efficient way. Anybody knows if there is a sub vi for this in LW7.0 ?
(The Inputs are a Matrix; and a Vector with the same size as Matrix's # of columns ; the output is a Matrix with the same dimension as input Matrix. Every row of the output Matrix is the product of element-by-element multiplication of input vector with the correspondind input Matrix's row )
Thanks

(Yes, the 2D linear evaluation is basically the same as the 1D evaluation except for the dimension if the array. NI could merge them into one and make the array input polymorphic with respect to size. )
I "think" you want a plain multiply (not a polynomial evaluation). You can do it (A) one row at a time or (B) one column at a time, but A might possibly be slightly more efficient. Do all three (including the one in the next message) and race them with your real data! Message Edited by altenbach on 03-14-2005 07:47 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
MatrixTimesVector.gif ‏5 KB

Why do images/vectors with effects get rasterised when clipped in Illustrator

Why do images/vectors with effects get rasterised when clipped in Illustrator@

Which version
which system?
What exactly did you do?
What exactly happened?
What exactly is wrong with that?
Can you show a screenshot?

Enum thru vector with many diff types of obj?

lets say i have vector 'food' which contains a bunch of objects of different classes, like 'bread' and 'cheese', if i wanted to enumerate through them, how would i go about doing that? i know how to enumerate through a vector with the knowledge that all the objects in it are of the same class, like Food currentFood = (Food)enum.nextElement() , but i dont see how to make variable type dynamic

If you have a vector where all the elements are Food, then you can safely cast each element to Food and call Food methods on each element.
If one of the elements is a Bread, and Bread has a method that isn't present in Food, then you can't call that method without first checking to see if the element is a Bread and casting it. But ideally you should be designing such that this isn't an issue.
For example, Bread may have a bake() method, and ChocolateMilk may have a mix() method. But rather than using instanceof on each Food to see if it's a Bread or a ChocolateMilk, and then calling either bake() or mix(), it's better to have a method prepare() in the Food class. Then you just call prepare() on each object. It may be that Bake.prepare() does nothing more than invoke bake(), but the point is that the caller doesn't need to know that.
That may not be the best example.

Converting Vector with Floats to float[] typecast error?

Java Developers,
I am able to convert my String vector to a
String[] but just can't get the Vector with Floats to be converted to a float[] array. I have looked into google and java.sun.com Forums but still cant seem to find the answer. I would really appreciate your help!
This is how I am making the conversion from Vector(String) to String[]:
legendLabelsArray = new String[columnHeads.size()];
int k=0;
Iterator e = columnHeads.iterator();
while(e.hasNext()){
System.out.println("inside the enumerator");
legendLabelsArray[k] = e.next().toString();
System.out.println("Array elements at " + k + " are " + legendLabelsArray[k]);
System.out.println(k++);
How can I make something similar to work with a Vector with Floats to float[] instead of Strings?
Thanks,
Musaddiq
[email protected]

Something like this ...
float[] floatArray = new float[vectorOfFloats.size()];
int k=0;
Iterator e = vectorOfFloats.iterator();
while(e.hasNext()){
floatArray[k] = ((Float) e.next()).floatValue();
k++;

Vector with bytes to byte[ ]

I have a Vector with bytes as it elements:
Vector _buffer = new Vector();
byte a = 120;
byte b = 67;
byte c = 98;
_buffer.addElement(a);
_buffer.addElement(b);
_buffer.addElement(c);And I want to read it our into a byte[ ], so it is more easy to, for example, make a string of it. So I want to do this:
byte[] b = (byte[]) _buffer.toArray(new byte[0]);But this isn't working, probably because byte is a primitive, and the function Vector: public <T> T[] toArray(T[] a) works on classes (I am not sure about this...?)
The following is working:
Vector _buffer = new Vector();
Byte a = new Byte(120);
Byte b = new Byte(67);
Byte c = new Byte(98);
_buffer.addElement(a);
_buffer.addElement(b);
_buffer.addElement(c);
Byte[] b = (Byte[]) _buffer.toArray(new Byte[0]);But this isn't what I want, because even now I can't make a byte[] out of the Byte[]. Is there an easy way (loops off course, but maybe a more elegant way) to bridge this gap between primitives and classes?
Thanks in Advance

Geert wrote:
I don't see how to work with the ByteArrayInputStream...? The socket only returns me an InputStream, so how to convert it to an ByteArrayInputStream?I said ByteArrayOutputStream, not ByteArrayInputStream.
You're reading from the stream and adding the bytes to a Vector<Byte>, right? Instead of storing them in a Vector<Byte>, write them to the ByteArrayOutputStream instead. Then you can call toByteArray() to get a byte[].
EDIT: I should've limited my quote in reply #5 to this part:
I need to have a dynamical created array. Because the order of the List is important I thought I would need to use a Vector object.

Help with generics - extending hashmap

I'm trying to extend the HashMap class to accept multiple values per key. I'd like .put(key,value) to put a single key/value pair. I'd like .get(key) to return a Vector<V> of all the values associated with key, and .get(key, index) to return a single value of type V for that key. I am using Eclipse 3.2 and Java 1.5.
The problem I am having is my .put(K key,V value) method won't compile, I get the error:
Name clash: The method put(K,V) of type OneToManyHashMap<K,V> has the same erasure as put(K,V> of type HashMap<K,V> but does not override it
My code (roughly):
public class OneToManyHashMap<K,V> extends HashMap<K, Vector<V>> {
    public V get(Object key, int index) { return get(key).get(index); }
    public V put(K key, V value) { ... }
    public V remove(Object key, int index) { return get(key)
}Yes, I know there is an extra > in the code. It's wasn't there when I typed the message and it's not there when I try and edit the message to remove it :(
Message was edited by:
jiggersplat

This is what was meant by a "has-a" relation:
public class OneToManyHashMap<K, V extends List<V>> {
    public Map<K, List<V>> map;
    public OneToManyHashMap() { map = new HashMap<K, List<V>>(); }
    public V get(K key, int index) { return map.get(key).get(index); }
    public void put(K key, V value) { map.get(key).add(value); }
    public void remove(K key, int index) { map.get(key).remove(index); }
}Needless to say, you will have to perform some checks to handle eventual NPE's.

How to cast vector to vector with out using loop. and how to override "operator =" of vector for this kind of condition.

Hi All How to TypeCast in vector<>... typedef struct ... to class...
//how to cast the vector to vector cast with out using loop
// is there any way?
//================ This is Type Definition for the class of ClsMytype=====================
typedef struct tagClsMytype
CString m_Name;
int m_Index;
double m_Value;
} xClsMytype;
//================ End of Type Definition for the class of ClsMytype=====================
class ClsMytype : public CObject
public:
ClsMytype(); // Constructor
virtual ~ClsMytype(); // Distructor
ClsMytype(const ClsMytype &e);//Copy Constructor
// =========================================
DECLARE_SERIAL(ClsMytype)
virtual void Serialize(CArchive& ar); /// Serialize
ClsMytype& operator=( const ClsMytype &e); //= operator for class
xClsMytype GetType(); // return the typedef struct of an object
ClsMytype& operator=( const xClsMytype &e);// = operator to use typedef struct
ClsMytype* operator->() { return this;};
operator ClsMytype*() { return this; };
//public veriable decleare
public:
CString m_Name;
int m_Index;
double m_Value;
typedef struct tagClsMyTypeCollection
vector <xClsMytype> m_t_Col;
} xClsMyTypeCollection;
class ClsMyTypeCollection : public CObject
public:
ClsMyTypeCollection(); // Constructor
virtual ~ClsMyTypeCollection(); // Distructor
ClsMyTypeCollection(const ClsMyTypeCollection &e);//Copy Constructor
DECLARE_SERIAL(ClsMyTypeCollection)
virtual void Serialize(CArchive& ar);
xClsMyTypeCollection GetType();
ClsMyTypeCollection& operator=( const xClsMyTypeCollection &e);
ClsMyTypeCollection& operator=( const ClsMyTypeCollection &e); //= operator for class
void Init(); // init all object
CString ToString(); // to convert value to string for the display or message proposed
ClsMyTypeCollection* operator->() { return this;}; // operator pointer to ->
operator ClsMyTypeCollection*() {return this;};
public:
vector <ClsMytype> m_t_Col;
//private veriable decleare
private:
//===================================================
ClsMytype& ClsMytype::operator=( const xClsMytype &e )
this->m_Name= e.m_Name;
this->m_Index= e.m_Index;
this->m_Value= e.m_Value;
return (*this);
//==========================Problem for the vector to vector cast
ClsMyTypeCollection& ClsMyTypeCollection::operator=( const xClsMyTypeCollection &e )
this->m_t_Col= (vector<ClsMytype>)e.m_t_Col; // how to cast
return (*this);
Thanks in Advance

Hi Smirt
You could do:
ClsMyTypeCollection* operator->() {
returnthis;};
// operator pointer to ->
operatorClsMyTypeCollection*()
{returnthis;};
public:
vector<ClsMytype>
m_t_Col;//??
The last line with "vector<xClsMytype>
m_t_Col;". It compiles but I doubt that is what you want.
Regards
Chong

Initializing Vectors with objects.

Hi all,
I am investigating a problem and have narrowed down to a section of code where the Vector.get() method returns an empty string instead of null when the key queried doesn�t exist. I know I can alter the code to check for null or empty string but I wanted to find out why?
I am not sure if initializing a Vector variable with an existing object is the cause� Here is a line from the code:
Vector result = oracleWrapper.getCodeList (regionCode); //This call returns a vector.In test I ran this code a million times but couldn�t recreate it� but in production, after a few days (since the server bounce (JRun 4x)) of normal behaviour, it just starts returning empty string instead of null for keys that don�t exist in the Vector! Restarting the server is the solution for now!
What I want to find out:
1. Is initializing Vectors like in the snippet above fine?
2. Are there any known issues similar to this scenario?
3. Is call to a constructor explicitly required to guarantee its integrity?
Thanks a mill,
Jay

True and I have already removed the Vector from my list of suspects because this problem only happens after a few days of normal functioning and the vector still contains an incomplete string when the error starts. I am on the look for statements that may be resulting in memory leaks and temporarily have a Properties object in my list of suspects along with a few StringBuffers.
The code has a statement Properties props = null; and then after a few lines a value from a Vector object is put into it!
props= (Properties) result.elementAt(idx);I have load tested it but cant get it to break!
I have spent way too long on this and may be rewriting it would have been quicker! But can�t :(
I am soo stuck.

Illustrator saving vectors with different attributes than assigned prior to saving

I am having a problem whenever I save a document in Illustrator.
Near the edges of the page, I am placing a few rectangular vectors filled in only with black.
When I save the image as a .pdf, two of these get changed.
One on top, and one on bottom, at the exact same x placement.
Prior to saving, they are all completely identical with the same attributes.
I even deleted the old ones, replaced them with new ones, which I copied from other marks that were not messing up, and saved the .ai file as a .pdf again, but to no avail.
Please help as I have no idea what to do to fix this.
I have tried unchecking save as an illustrator editable file, save with layers, etc.
Any advice would be greatly appreciated.

BeeHiver wrote:
Well, I believe that it is simply the way that adobe was displaying it, because if I zoom in on the .pdf file, the added thickness disappears.
The same thing happens when I have the letter I in text, not sure why this happens, but I no longer think it is an issue.
That letter 'l' looking thicker is a known issue with a PDF file... as you've noticed, it clears up when you zoom in and also, it doesn't print like that...

Initializing Vector with ResultSet(too Slow!)

Hi
I'm createing a JTable with two Vectors. Im am initializing the Vectors in a while loop, but it is way to slow with large ResultSets.
Does anyone know how I can speed this process up?
Thanks!

Heres the full method Ive removed some of hte code in the for loop. But that makes no difference to the speed
private Vector getData(int columns[]) throws Exception
     rows = new Vector(queue.count);
     while (res.next())
             Vector newRow = new Vector(columns.length);
          for (int i = 0; i < columns.length; i++)
             newRow.addElement(res.getString(columns));
rows.addElement(newRow);
return rows;

Vector with raster edges in Fireworks.. Why?

I am new to Fireworks so I have one newbie question :)
If Fireworks is vector / raster program, why when I draw
something that is complete vector in it with a pen tool I get
pixelazation ?

t_o_m_M wrote:
> I am new to Fireworks so I have one newbie question :)
> If Fireworks is vector / raster program, why when I draw
something that is complete vector in it with a pen tool I get
pixelazation ?
I'm betting your screen displays things in pixels just like
mine does.
Fireworks is designed to display things as you will see them
on the
screen when they are exported. Aside from that, do you have
anti-aliasing turned on?
Linda Rathgeber [PVII] *Adobe Community Expert-Fireworks*
http://www.projectseven.com
Fireworks Newsgroup:
news://forums.projectseven.com/fireworks/
CSS Newsgroup: news://forums.projectseven.com/css/
http://www.adobe.com/communities/experts/

Vector with in a hashmap

Similar Messages

Maybe you are looking for