Search Results

Search found 46178 results on 1848 pages for 'java home'.

Page 994/1848 | < Previous Page | 990 991 992 993 994 995 996 997 998 999 1000 1001  | Next Page >

  • Hold most of the object in cache/memory insted of database?

    - by feiroox
    Hi All, It just occurred to me why not to have most of the objects in a cache(memory) when an application start. if it's not that large web application. Or to have a settings for how much I want to put in the cache/memory. I just guess it could require to have something like below 1 GB RAM or a lot less. Everything in order to speed up the application even more by not querying database. Is it good idea?

    Read the article

  • Is map/collection order stable between calls?

    - by John
    If I have a hash map and iterate over the objects repeatedly, is it correct that I'm not guaranteed the same order for every call? For example, could the following print two lines that differ from each other: Map<String,Integer> map = new HashMap<String,Integer>() {{ put("a", 1); put("b", 2); put("c", 3); }}; System.out.println(map); System.out.println(map); And is this the case for sets and collections in general? If so, what's the best way in case you have to iterate twice over the same collection in the same order (regardless of what order that is)? I guess converting to a list.

    Read the article

  • Positioning child panels using FlowLayout

    - by extro
    I have two panels: main_panel child_panel The main_panel layout is set using: main_panel.setLayout(flowlayout) I then added child_panel to main_panel: main_panel.add(child_panel) The child_panel gets added to main_panel but its position is at the cross-section of horizontal midpoint and top vertical section of screen. I want child_panel to be at the top left corner, something I could have done by using child_panel.setlocation(a,b) method, if I have set the layout of main_panel as null. I have used FlowLayout here because I want components in the JPanel to keep adjusting with the size of JFrame. So can I add child_panel to main_panel at the exact location I want, even if I set the Layout of main_panel as not null?

    Read the article

  • Enforce "equals" in an interface

    - by Fredrik
    I have an interface and I want everyone who implements this interface to implements an overrridden "equals" method. Is there a way to make sure that happens? The way I guess this will happen is that the class that implements my interface will automatically get the equals from Object therefore making the interface happy.

    Read the article

  • Netbeans configuration problem

    - by Yatendra Goel
    I am using Netbeans 6.8 The problem is that the projects explorer (that displays all the projects and their contents) displays each package as a node. For instance, if there is package hierarchy like this; com.mycompany.myproject.package1.package1.1 then it displays 5 nodes for the five packages which is very disturbing while development. Is there any way by which I can configure it(Netbeans) so that it groups all the subpackages of a package under one node and displays the subpackages only when I expand the package node?

    Read the article

  • Why does eclipse give me errors when i try to run sample application?

    - by ylen
    I dont know why the sample application from the android website gives me 300+ errors when i try to run it in ecplise galileo. The application i am trying is Bluetoothchat it is straight from the sdk sample folder so it shouldn't contain any. I have added android.jar and I do have an emulator. I have tried HelloWorld and it worked..Could someone help me? Thanks

    Read the article

  • Running 2 threads simultaneously

    - by lamsaitat
    In the case of an IM client. I have made 2 separate threads to handle sending packets (by std io) and receiving packets. The question is how to make these 2 threads run simultaneously so that I can keep prompting for input while at the same time be ready to receive packets at any time? I have already tried setting a timer but the data is always lost receiving.

    Read the article

  • Censoring selected words (replacing them with ****) using a single replaceAll?

    - by aioobe
    I'd like to censor some words in a string by replacing each character in the word with a "*". Basically I would want to do String s = "lorem ipsum dolor sit"; s = s.replaceAll("ipsum|sit", $0.length() number of *)); so that the resulting s equals "lorem ***** dolor ***". I know how to do this with repeated replaceAll invokations, but I'm wondering, is this possible to do with a single replaceAll?

    Read the article

  • Lucene MultiFieldQueryParser which column of the three generated the hit

    - by user549432
    I am using Lucene MultiFieldQueryParser and the implementation is as shown below QueryParser parser = new MultiFieldQueryParser (Version.LUCENE_30,new String[] {"First Name","Middle Name","Last Name"}, standardAnalyzer); Query query = parser.parse(queryString); and using it to find a match for the input string in my DB columns First Name, Middle Name and Last name . I am able to get the hits with normal search and fuzzy search - The only problem I am facing is finding which column of the three generated the hit - Can you pls help me here - Thanks

    Read the article

  • Resultset To List

    - by Gnaniyar Zubair
    I want to convert my Resultset to List in my JSP page. and want to display all the values. This is my query: SELECT userId, userName FROM user; I have executed that using preparedstatement and got the Resultset. But how to convert it as a List and want to display the result like this: userID userName ------------------ 1001 user-X 1006 user-Y 1007 user-Z

    Read the article

  • Simple servlet or filter to process form

    - by David
    Is there a simple framework for processing form submissions via a servlet? For my needs, a framework like STRUTS seems like over kill. My ideal processor would be a servlet that converts form elements into a bean object, possibly using typing information in the form to help with the conversion. Does something like this exist or is there another solution out there geared toward simpler needs? Thanks!

    Read the article

  • More than one JPanel in a Frame / having a brackground Image and another Layer with Components on the top

    - by user1905203
    I've got a JFrame with a JPanel in which there is a JLabel with an ImageIcon(). Everything's working perfectly, problem is i now want to add another JPanel with all the other stuff like buttons and so on to the JFrame. But it still shows the background Image on top and nothing with the second JPanel. Can someone help me? Here is an extract of my code: JFrame window = new JFrame("Http Download"); /* * Background Section */ JPanel panel1 = new JPanel(); JLabel lbl1 = new JLabel(); /* * Component Section */ JPanel panel2 = new JPanel(); JLabel lbl2 = new JLabel(); /* * Dimension Section */ Dimension windowSize = new Dimension(800, 600); Dimension screen = Toolkit.getDefaultToolkit().getScreenSize(); public HTTPDownloadGUI() { window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); panel1.setLayout(null); panel1.setSize(windowSize); panel1.setOpaque(false); panel2.setLayout(null); panel2.setSize(windowSize); panel2.setOpaque(false); lbl1.setSize(windowSize); lbl1.setLocation(0, 0); lbl1.setIcon(new ImageIcon(getClass().getResource("bg1.png"))); panel1.add(lbl1); lbl2.setBounds(0, 0, 100, 100); //lbl2.setIcon(new ImageIcon(getClass().getResource("bg2.png"))); lbl2.setBackground(Color.GREEN); panel2.add(lbl2); panel1.add(panel2); window.add(panel1); int X = (screen.width / 2) - (windowSize.width / 2); int Y = (screen.height / 2) - (windowSize.height / 2); window.setBounds(X,Y , windowSize.width, windowSize.height); window.setVisible(true); }

    Read the article

  • Eclipse and SVN: Missing .project file.

    - by DHC
    Hi, I'm working on a uni project with a few other people using SVN. Much to my annoyance the .project file was removed from the repository since "it contains platform specific information". However, this has obviously broken my setup in Eclipse, giving me the error: Problems occurred opening the selected resources. The project description file (.project) for '___' is missing. This file contains important information about the project. The project will not function properly until this file is restored. Any suggestions? Thank you.

    Read the article

  • Best way to create a Unique ID field for an enum

    - by jax
    What is the best way to get a Unique ID from an ENUM that will stay consistent between repeated execution of the program? Currently I am doing this manually by passing an ID to the enum constructor. I don't really want to do this is I can help it. Another option would be to use a static field that gets incremented for each enum value. The problem is that if later I decide to move the enum fields around or delete some this will cause problems with my program as the ID will be saved into user preferences. The ID can be any basic type or a String.

    Read the article

  • Sending message to multiple contacts of mobile by providing search facility in J2ME

    - by learn
    I wan to send the message to multiple contacts in the contactlist for(int j=0;j<vector.size();j++){ listofContacts=new ListofContacts(); listofContacts=(ListofContacts)vector.elementAt(j); list.setFitPolicy(1); list.append(listofContacts.contactname + " "+ listofContacts.contactno,null); System.out.println(listofContacts.contactname + " "+ listofContacts.contactno); } here i have taken all the contacts of contact list in vector and the listofcontacts is the class containing the name and number. To show the list of contacts for selection i am using list control with multiple choice. The code is working fine and message is sent to all the contacts which are selected by the user but as we know there may be 1000 of contacts in phonebook and in these case to select a particular user we have to scroll down the list. Now how to keep the search facility so that we can directly go to the required contact and if it is not possible with the list control which control is to be used so that multiple contacts can be selected and also search facility is available.

    Read the article

  • Spring singleton lifecycle

    - by EugeneP
    Reading this When a bean is a singleton, only one shared instance of the bean will be managed and all requests for beans with an id or ids matching that bean definition will result in that one specific bean instance being returned. Will be managed... What does that mean? If there's only one object, than any modification to this object will result in that every another attempt to get this bean will return a modified instance??

    Read the article

  • Need help making this code more efficient

    - by Rendicahya
    I always use this method to easily read the content of a file. Is it efficient enough? Is 1024 good for the buffer size? public static String read(File file) { FileInputStream stream = null; StringBuilder str = new StringBuilder(); try { stream = new FileInputStream(file); } catch (FileNotFoundException e) { } FileChannel channel = stream.getChannel(); ByteBuffer buffer = ByteBuffer.allocate(1024); try { while (channel.read(buffer) != -1) { buffer.flip(); while (buffer.hasRemaining()) { str.append((char) buffer.get()); } buffer.rewind(); } } catch (IOException e) { } finally { try { channel.close(); stream.close(); } catch (IOException e) { } } return str.toString(); }

    Read the article

  • displaying a dialog using an activity?

    - by ricardo123
    what am i doing wrong here or what do i need to add? package dialog.com; import android.app.Activity; import android.app.AlertDialog; import android.content.DialogInterface; import android.app.Dialog; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.Toast; public class Dialog extends Activity { CharSequence [] items = { "google", "apple", "microsoft" }; boolean [] itemschecked = new boolean [items.length]; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button btn = (Button) findViewById(R.id.btn_dialog); btn.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { showDialog(0); } }); } @Override protected Dialog onCreateDialog(int id) { switch(id) { case 0: return new AlertDialog.Builder(this) .setIcon(R.drawable.icon) .setTitle("This is a Dialog with some simple text...") .setPositiveButton("ok", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichbutton) { Toast.makeText(getBaseContext(), "OK Clicked!", Toast.LENGTH_SHORT).show(); } }); .setNegativeButton("cancel",new DialogInterface.OnclickListener() { public void onClick(DialogInterface dialog, int whichButton) {Toast.makeText(getBaseContext(), "cancel clicked!", Toast.LENGTH_SHORT).show(); } }); .setMultiChoiceItems(itemschecked, new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(dialoginterface dialog, int which, boolean isChecked) { Toast.makeText(getBaseContext(), items[which] + (isChecked ? " checked!": "unchecked!"), Toast.LENGTH_SHORT).show(); } } ) .create(); } return null: }}}

    Read the article

< Previous Page | 990 991 992 993 994 995 996 997 998 999 1000 1001  | Next Page >