JPasswordField password the method getText is deprecated

Hi guys,
The following code works, but for some reason, I get a small yellow line under it [I'm useing eclipse as my IDE] indicating:
The method getText() from the type JPassword is deprecated
WHY? any suggestions, or alternative to correct it?
the code:
     private JTextField username;
     private JPasswordField password;
password.setEchoChar('*');
     if (username.getText().equalsIgnoreCase("admin") && password.getText().equals("807SereNo#2"))
//invoke ...
the yellow line, indicating an err is under password.getText().

// if (username.getText().equalsIgnoreCase("admin") && password.getText().equals("807SereNo#2"))
change to
String password = new String(password.getPassword());
if (username.getText().equalsIgnoreCase("admin") && password.equals("807SereNo#2"))
and will work fine I think.

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Hi there,
I have a DataInputStream object (code below). The code works great but I get a warning message below the code: dis.readLine()
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does anyone have an alternative to eliminate the warning?
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Name of the method.

Good day,
Within a class, the name of the class can bet determined via a call to the "getClass().getName()" method, right ?
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================
class magic {
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Good day,
By all means, I'm far from being an expert or even being to point to consider myself "at ease" with Java.
Simply put, I have few applets sources that are using the "simple" things such as the following :
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When compiled with SDK v1.3, there is a mention that the API is deprecated. I looked into the deprecated APIs and functions documentation, and I must admit, I'm completely lost in that jungle!
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Method getService is deprecated

Hi,
I have made a portal application using EPCF in eclipse for EP60 SP2 but get the following error in the portal:
com.sapportals.portal.prt.component.PortalComponentException: Error in service call of Portal Component
Component : RIGSenderParProject02.RIGSenderParComponent02
Component class : RIGSenderParParckage02.RIGSenderParComponent02
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Caused by: java.lang.ClassCastException: com.sapportals.portal.prt.service.epcftoolbox.EpcfToolbox
at RIGSenderParParckage02.RIGSenderParComponent02$SenderDynPage.doProcessBeforeOutput(RIGSenderParComponent02.java:60)
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The method getService(String) from the type IPortalComponentRequest is deprecated
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Thanks in advance,
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Thanks John, this removed the "deprecated" warning in eclipse, but I still get the same ClassCastException error at runtime:
Caused by: java.lang.ClassCastException: com.sapportals.portal.prt.service.epcftoolbox.EpcfToolbox
at RIGSenderParParckage02.RIGSenderParComponent02$SenderDynPage.doProcessBeforeOutput(RIGSenderParComponent02.java:60)
The class name I get returned is "com.sapportals.portal.prt.service.epcftoolbox.EpcfToolbox", both when I use my original code and the coding from John.
Any ideas how I can get rid of the ClassCastException error?
Thanks,
best regards,
David

Alternative required for IService Configure Method which is Deprecated.

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and also the Class Used as parameter(IServiceConfiguration) in this method is marked as deprecated.
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Hi ,
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Thanks.

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java.util.Date date1 = new java.util.Date();
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Hi ,
I have created a subtype zcats of business object CATS and delegated it .
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I have include the method Approve1 of business object zcats in a standard task .
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Can someone please help me with this .
Points would surely be awarded .

BEGIN_METHOD APPROVE1 CHANGING CONTAINER.
DATA: WORKITEMID_IMP LIKE OBJECT-KEY-ITEMID.
DATA: WI_CHCKWI LIKE SWWWIHEAD-WI_ID.
DATA: WORKITEM TYPE SWC_OBJECT.
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    SWC_GET_PROPERTY WORKITEM 'WorkitemReference' WI_CHCKWI.
    IF SY-SUBRC EQ 0 AND NOT WI_CHCKWI IS INITIAL.
      WORKITEMID_IMP = WI_CHCKWI.
    ENDIF.
    CALL FUNCTION 'CATS_WF_APPROVAL'
      EXPORTING
        WORKITEMID_IMP = WORKITEMID_IMP
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END_METHOD.
hi ,
the above is the code in the method .
At the first step of execution underlined above , the work item id is appearing blank .
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Back up all data if you haven’t already done so. There are ways to back up, even if you can’t log in. Before proceeding,you must be sure you can restore everything to the state it’s in now. If you’re not sure you can do that, STOP.
The procedure below may spare you the need for a clean reinstallation of OS X. If you don't feel comfortable carrying it out, don't. try.
Briefly, you need to delete the following file:
/var/audit/current
If you already know how to do that, you can skip the rest of this message. Do it, and try again to log in.
Boot in single-user mode by holding down the key combination command-S at the startup chime. If you’re using an external USB keyboard, it must be plugged directly into a built-in port on the Mac, not into a hub. Release the keys when you see a black screen with scrolling white text. In this mode, there’s no graphical interface; just a command line. Initially, you can’t make any changes to files.
When the text stops scrolling, and you see a line ending in a pound sign (“#”), type the following command:
mount -uw /
You must type the command exactly as given, with no mistakes. If you don’t feel able to do that, STOP. At this stage, no harm will be done if you make a mistake, but later, it will be. Press the return key.
Next, type the following command:
rm -i /var/audit/current
Press return. You should get the following output:
remove /var/audit/current?
If that's not what you get, STOP. Type the single letter N, press return, and try again. Otherwise, type the single letter Y and pressreturn.
Finally, enter the command:
exit
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Credit for this solution to ASC user AnthonyTW.

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How use the method hasPermission in weblogic server 6.1

Hello everybody !
In my application web ,i restrict access to some ressources (some jsp)
to some specified groups .
So,i create permissions in the file web.xml , as indicated in the doc
6.0 .
For example only the user : system can access to all the jsp , and the
others users no .
Now ,in my code ,I would like to use the method hasPermission in order
to modify my application according to the differents groups of users .
But my problem is that i don't know the parameter aclName !
For the parameter permission I use the syntax "new
weblogic.security.acl.PermissionImpl(".../x.jsp") .
For the parameter sep (char),i use : '.' .
But i don't find the parameter aclName .
When i was in weblogic 5.1 ,i created permission in the file
weblogicURL.policy with the syntax : " Permission
weblogic.security.acl.URLAcl "weblogic.url",".../x.jsp" " and after
i gave "weblogic.url" as parameter for aclName .
But in version 6.0, I try web.xml, web ? but nothing is good .
Is there any person which have an idea or the solution ?
All the sugestions are welcome !
Thanks by advance !
Good bye .

hi,
maybe a better approach could be to use roles instead of permissons.
Your menu.jsp could look like this:
<%
if(request.isUserInRole("super-user"))
%>
... code HTML where the button "Creation" is created
<%
%>
You can map the role 'super-user' to an individual principal or a
user group in weblogic.xml. In that case only users that are in
the mapped group/principal will see the 'creation' link. So simply
add user 'system' to a group 'super-user'.
regards,
przemek
Marc Alfonsi schrieb:
Hi Kirann and everybody!
Thanks for your message .
I'm going to explain better than the first time .
I set up security-constraints in my web.xml .
For example only "system" can access to the directory Creation and
all its .jsp , and the others users no .
Now ,in my code , there is a jsp : menu.jsp which displays some
possibilities : creation of an employee , visualisation ...with HTML
code : button "Creation" which call a .jsp of the directory Creation .
Actually , if a user different of "system" try to click on the button
"Creation" there is a dialog box of login . The user writes its loggin
but the access is prohibited ( because security-constraint in web.xml
).It's normal but not very well .I would like that a user who don't
have access to the functionality "Creation" don't see the button
"Creation" !
So in menu.jsp , i would like to use the method hasPermission at the
location of the button "Creation" is created with HTML code :
<%
if weblogic.security.acl.Security.hasPermission(.....,new
weblogic.security.acl.PermissionImpl("/Creation/x.jsp"),'.')
%>
code HTML where the button "Creation" is created
<%
%>
But my problem is that i don't know the first parameter which
correspond
to aclName .
Any suggestions are welcome .
Thanks for help .

How can i change the method that get a Bitmap file and return 15 new Bitmaps so the new Bitmaps will be also PixelFormat Format8bppIndexed ?

This is the method:
public static Bitmap[] get_images_with_clouds(Bitmap radar_image)
int e = 0;
int f = 0;
int image_clock_area_x = 0;
int image_clock_area_y = 0;
int image_clock_area_x1 = 140;
int image_clock_area_y1 = 21;
Bitmap[] localImages;
localImages = new Bitmap[15];
Bitmap image;
image = new Bitmap(Properties.Resources.radar_without_clouds);
BitmapData bmD = null;
BitmapData bmD2 = null;
try
bmD = image.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
bmD2 = radar_image.LockBits(new Rectangle(0, 0, radar_image.Width, radar_image.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
IntPtr sc0 = bmD.Scan0;
unsafe
int* p = (int*)sc0.ToPointer();
int* p2 = (int*)bmD2.Scan0.ToPointer();
for (e = image_clock_area_x; e < image_clock_area_x + image_clock_area_x1; e++)
for (f = image_clock_area_y; f < image_clock_area_y + image_clock_area_y1; f++)
Color clock_color = Color.FromArgb(p2[e + f * bmD2.Width]);
p[e + f * bmD.Width] = clock_color.ToArgb();
image.UnlockBits(bmD);
radar_image.UnlockBits(bmD2);
catch
try
image.UnlockBits(bmD);
catch
try
radar_image.UnlockBits(bmD2);
catch
int c;
for (c = 0; c < localImages.Length; c++)
localImages[c] = new Bitmap(image);
Bitmap new_image = new Bitmap(Properties.Resources.radar_without_clouds);
Bitmap new_image1 = new Bitmap(Properties.Resources.radar_without_clouds);
Bitmap localbmptest = black_and_white(new_image, radar_image);
Image image1 = black_and_white(new_image, radar_image);
image1.Save(@"c:\temp\testclouds666.jpg");
Bitmap clouds = new Bitmap(image1);
int x;
int y;
int a;
int b;
int d = 0;
Bitmap redImage;
redImage = new Bitmap(512, 512);
using (Graphics g = Graphics.FromImage(redImage))
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;
g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.Half;
g.Clear(Color.Red);
BitmapData bmData = null;
BitmapData bmData2 = null;
BitmapData bmDataArray = null;
try
bmData = clouds.LockBits(new Rectangle(0, 0, clouds.Width, clouds.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
bmData2 = radar_image.LockBits(new Rectangle(0, 0, radar_image.Width, radar_image.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
IntPtr scan0 = bmData.Scan0;
IntPtr scan02 = bmData2.Scan0;
unsafe
int* p = (int*)scan0.ToPointer();
int* p2 = (int*)scan02.ToPointer();
double h, mm;
for (d = 0; d < localImages.Length; d++)
bmDataArray = localImages[d].LockBits(new Rectangle(0, 0, localImages[d].Width, localImages[d].Height), ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
IntPtr scan0Array = bmDataArray.Scan0;
int* pArray = (int*)scan0Array.ToPointer();
for (a = 0; a < new_image.Width; a++)
for (b = 0; b < new_image.Height; b++)
Color color1 = Color.FromArgb(p[a + b * bmData.Width]);
Color color2 = Color.FromArgb(p2[a + b * bmData2.Width]);
if (color1.R != 0 || color1.G != 0 || color1.B != 0)
h = color2.GetHue();
mm = RadarAnalysis.Hue2MMPerHour(h);
if (mm >= treshhold_array[14 - d])
pArray[a + b * bmDataArray.Width] = color2.ToArgb();
localImages[d].UnlockBits(bmDataArray);
clouds.UnlockBits(bmData);
radar_image.UnlockBits(bmData2);
catch (Exception error)
try
clouds.UnlockBits(bmData);
catch
try
radar_image.UnlockBits(bmData2);
catch
try
localImages[d].UnlockBits(bmDataArray);
catch
Logger.Write("Error Exception ==> " + error);
MessageBox.Show("Error Exception ==> " + error);
return localImages;
In the end i'm getting 15 Bitmaps in localImages.
localImages is Bitmap[]
The method get a Bitmap and the Bitmap pixel format is: Format8bppIndexed
I want that in the end the 15 Bitmaps in localImages will be also pixel format of Format8bppIndexed.
The problem is that if i change everywhere in the method from: PixelFormat.Format32bppArgb to PixelFormat.Format8bppIndexed
I'm getting exception on the line:
pArray[a + b * bmDataArray.Width] = color2.ToArgb();
Attempted to read or write protected memory. This is often an indication that other memory is corrupt
System.AccessViolationException was unhandled
HResult=-2147467261
Message=Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Source=My Weather Station
StackTrace:
at mws.ImagesComparison.get_images_with_clouds(Bitmap radar_image) in d:\C-Sharp\Download File\Downloading-File-Project-Version-012\Downloading File\ImagesComparison.cs:line 469
at mws.ScanningClouds.backgroundWorker1_DoWork(Object sender, DoWorkEventArgs e) in d:\C-Sharp\Download File\Downloading-File-Project-Version-012\Downloading File\ScanningClouds.cs:line 695
at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)
at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)
at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Object[]& outArgs)
at System.Runtime.Remoting.Messaging.StackBuilderSink.AsyncProcessMessage(IMessage msg, IMessageSink replySink)
at System.Runtime.Remoting.Proxies.AgileAsyncWorkerItem.ThreadPoolCallBack(Object o)
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
InnerException:
Line 469 is: pArray[a + b * bmDataArray.Width] = color2.ToArgb();

Thorsten Hi,
Too complicated for me i will try to look on it.
Also if you will have time later maybe you could look at it too ?
For now what i tried was to get the returned 15 new Bitmaps to a local array:
bitmaps = ImagesComparison.get_images_with_clouds(b1);
for (int i = 0; i < bitmaps.Length; i++)
ConvertTo1or8Bit.ColorToGrayscale(bitmaps[i]);
break;
Then make a convertion with a new class trying to convert the Bitmaps to 8 bit in the memory without saving them first to the hard disk. This is the new class:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Drawing.Imaging;
using System.Drawing;
using System.IO;
namespace mws
class ConvertTo1or8Bit
public ConvertTo1or8Bit()
public static Bitmap ColorToGrayscale(Bitmap bmp)
int w = bmp.Width,
h = bmp.Height,
r, ic, oc, bmpStride, outputStride, bytesPerPixel;
PixelFormat pfIn = bmp.PixelFormat;
ColorPalette palette;
Bitmap output;
BitmapData bmpData, outputData;
//Create the new bitmap
output = new Bitmap(w, h, PixelFormat.Format8bppIndexed);
//Build a grayscale color Palette
palette = output.Palette;
for (int i = 0; i < 256; i++)
Color tmp = Color.FromArgb(255, i, i, i);
palette.Entries[i] = Color.FromArgb(255, i, i, i);
output.Palette = palette;
//No need to convert formats if already in 8 bit
if (pfIn == PixelFormat.Format8bppIndexed)
output = (Bitmap)bmp.Clone();
//Make sure the palette is a grayscale palette and not some other
//8-bit indexed palette
output.Palette = palette;
return output;
//Get the number of bytes per pixel
switch (pfIn)
case PixelFormat.Format24bppRgb: bytesPerPixel = 3; break;
case PixelFormat.Format32bppArgb: bytesPerPixel = 4; break;
case PixelFormat.Format32bppRgb: bytesPerPixel = 4; break;
default: throw new InvalidOperationException("Image format not supported");
//Lock the images
bmpData = bmp.LockBits(new Rectangle(0, 0, w, h), ImageLockMode.ReadOnly,
pfIn);
outputData = output.LockBits(new Rectangle(0, 0, w, h), ImageLockMode.WriteOnly,
PixelFormat.Format8bppIndexed);
bmpStride = bmpData.Stride;
outputStride = outputData.Stride;
//Traverse each pixel of the image
unsafe
byte* bmpPtr = (byte*)bmpData.Scan0.ToPointer(),
outputPtr = (byte*)outputData.Scan0.ToPointer();
if (bytesPerPixel == 3)
//Convert the pixel to it's luminance using the formula:
// L = .299*R + .587*G + .114*B
//Note that ic is the input column and oc is the output column
for (r = 0; r < h; r++)
for (ic = oc = 0; oc < w; ic += 3, ++oc)
outputPtr[r * outputStride + oc] = (byte)(int)
(0.299f * bmpPtr[r * bmpStride + ic] +
0.587f * bmpPtr[r * bmpStride + ic + 1] +
0.114f * bmpPtr[r * bmpStride + ic + 2]);
else //bytesPerPixel == 4
//Convert the pixel to it's luminance using the formula:
// L = alpha * (.299*R + .587*G + .114*B)
//Note that ic is the input column and oc is the output column
for (r = 0; r < h; r++)
for (ic = oc = 0; oc < w; ic += 4, ++oc)
outputPtr[r * outputStride + oc] = (byte)(int)
((bmpPtr[r * bmpStride + ic] / 255.0f) *
(0.299f * bmpPtr[r * bmpStride + ic + 1] +
0.587f * bmpPtr[r * bmpStride + ic + 2] +
0.114f * bmpPtr[r * bmpStride + ic + 3]));
//Unlock the images
bmp.UnlockBits(bmpData);
output.UnlockBits(outputData);
return output;
But they are still 32 bit. So i guess i didn't realy understand yet how to do it.

Purpose of declaring the method or class or static and as instance

what is the purpose of declaring a method in a class or the class itself as static.
Does it mean we cannot create a copy of that class or method if we declare it as static.
if so then why do they dont want that class to be created as a copy ?
Why do they want to declare a class as static
please provide some conceptual undersatnding regarding the static and instance class with one example

Static methods are often used for the implementation of utility methods. Please have a look at the class CL_ABAP_CHAR_UTILITIES for example.
You use the methods of this class in the same way as you would use a function in ABAP (like
LINES( itab )
). You use it in a static way because the functionality is always the same no matter in what context you are calling the function.
The purpose of instance methods is that their logic is in some way related to an attribute of the object instance that you use to call it.
For example, you create an instance of object PO (a purchase order) called MY_PO. Then the method
MY_PO->ADD_POSITION
would add a position to a concrete PO that has a unique number etc. But if the object has a static method DELETE_POSITION then it just deletes the current position of a PO, regardless on which concrete PO you are acting at the moment.
I hope this clarifies it for you.
Regards,
Mark

How to call a java method so I can pass a file into the method

I want to pass a file into a java method method from the main method. Can anyone give me some help as to how I pass the file into the method - do I pass the file name ? are there any special points I need to put in the methods signature etc ?
FileReader file = new FileReader("Scores");
BufferedReader infile = new BufferedReader(file);
Where am I supposed to put the above text - in the main method or the one I want to pass the file into to?
Thanks

It's a matter of personal preference really. I would encapsulate all of the file-parsing logic in a separate class that implements an interface so that if in the future you want to start taking the integers from another source, e.g. a db, you wouldn't need to drastically alter your main application code. Probably something like this, (with an assumption that the numbers are delimited by a comma and a realisation that my file-handling routine sucks):
public class MyApp{
public static void main(String[] args){
IntegerGather g = new FileIntegerGatherer();
Integer[] result = g.getIntegers(args[0]);
public interface IntegerGatherer{
public Integer[] getIntegers(String location);
import java.io.*;
public class FileIntegerGatherer implements IntegerGatherer{
public Integer[] getIntegers(String location){
FileInputStream fs=null;
try{
File f = new File(location);
fs = new FileInputStream(f);
byte[] in = new byte[1024];
StringBuffer sb = new StringBuffer();
while((fs.read(in))!=-1){
sb.append(new String(in));
StringTokenizer st = new StringTokenizer(sb.toString(),",");
Integer[] result = new Integer[st.countTokens()];
int count = 0;
while(st.hasMoreTokens()){
result[count]=Integer.valueOf(st.nextToken());
count++;
catch(IOException e){
//something sensible here
finally{
if(fs!=null){
try{
fs.close();
catch(IOException f){
return result;
Once compiled you could invoke it as java MyApp c:\myInts.txt
Sorry if there are typos in there, I don't have an ide open ;->

JPasswordField password the method getText is deprecated

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