Search Results

Search found 2536 results on 102 pages for 'initialize'.

Page 56/102 | < Previous Page | 52 53 54 55 56 57 58 59 60 61 62 63  | Next Page >

  • Is it ever OK to throw a java.lang.Error?

    - by Abhijeet Kashnia
    I have a plugin module that goes into a web application. If the module does not load correctly, it does not make sense for the web application to go on, and the web application should probably not load at all, we would prefer this module to initialize correctly always. If I were to throw a runtime exception, it would get into the logs, and just get ignored since the application will continue anyway, and the end users would never know... I know that errors are meant to be thrown only under exceptional conditions, and they generally have to do with situations that the system cannot recover from, but what would you do in such a situation?

    Read the article

  • netbeans autocompletion when using singleton to retrieve object instead of new operator?

    - by fayer
    when i use the 'new' operator to instantiate a class, netbeans has no problem to autocomplete the members of the object. $instance = new Singleton(); $instance-> // shows test() method but when i use a singleton to retrieve an object it cannot autocomplete the members in the object retrieved. the getInstance code looks like this: public function test() { echo "hello"; } public static function getInstance() { if ( ! is_object(self::$_instance)) { self::$_instance = new self(); self::$_instance->initialize(); } return self::$_instance; } so i use: $instance = Singleton::getInstance(); $instance-> // no autocompletion! does anyone have the same problem? how do i work around it? thanks!

    Read the article

  • C++ containers on classes, returning pointers

    - by otneil
    Hello, I'm having some trouble to find the best way to accomplish what I have in mind due to my inexperience. I have a class where I need to a vector of objects. So my first question will be: is there any problem having this: vector< AnyType container* and then on the constructor initialize it with new (and deleting it on the destructor)? Another question is: if this vector is going to store objects, shouldn't it be more like vector< AnyTipe* so they could be dynamically created? In that case how would I return an object from a method and how to avoid memory leaks (trying to use only STL)?

    Read the article

  • Public static variables and Android activity life cycle management

    - by jsstp24n5
    According to the documentation the Android OS can kill the activity at the rear of the backstack. So, say for example I have an app and open the Main Activity (let's call it Activity A). In this public activity class I declare and initialize a public static variable (let's call it "foo"). In Activity A's onCreate() method I then change the value of "foo." From Activity A the user starts another activity within my app called Activity B. Variable "foo" is used in Activity B. Activity B is then paused after the user navigates to some other activities in other apps. Eventually, after a memory shortage occurs, Activity A then Activity B can be killed. After the user navigates back to my app it restarts (actually "recreates") activity B. What happens: 1) Will variable "foo" at this point have the value that was set to it when Activity A's onCreate() method ran? 2) Variable "foo" does not exist? 3) Variable "foo" exists and but is now the initialized value and not the value set in Activity A's onCreate() method?

    Read the article

  • How to localize static content in database with Django

    - by man with python
    My app has tables for languages and countries (actually django-countries at the moment, but open for suggestions). The tables are populated when I initialize the database and remain static after that. What would be the ideal localization mechanism for the contents of these tables, so that I can show the country and language names to users in their chosen site language? I'm aware of projects like django-multilingual and transdb, but IMO they are more suitable for dynamic content, i.e. stuff that's supposed to be modified. Please englighten me!

    Read the article

  • C# Generics Casting

    - by Nippysaurus
    Visual sutdio 2008 has the ability to automatically create unit test stubs. I have used this to create some basic unit tests, but I am confused by something: private class bla : BaseStoreItem { // } /// <summary> ///A test for StoreData ///</summary> public void StoreDataTestHelper<T>() where T : BaseStoreItem { FileStore<T> target = new FileStore<T>(); // TODO: Initialize to an appropriate value BaseStoreItem data = new bla(); target.StoreData(data); } [TestMethod()] public void StoreDataTest() { //Assert.Inconclusive("No appropriate type parameter is found to satisfies the type constraint(s) of T. " + // "Please call StoreDataTestHelper<T>() with appropriate type parameters."); StoreDataTestHelper<bla>(); } Why do I get "Error: Cannot convert type 'StorageUnitTests.FileStoreTest.bla' to 'T'" when T is type "bla"? I know "bla" is not a good function name, but its just an example.

    Read the article

  • Add code before initialization of units in Delphi

    - by Alan Clark
    Is there a place where I can add code that will be executed before unit initialization? The reason I want to do this is I need to change the DecimalSeparator, this has to be done before the initialization of some units. I have put it in the project source, before Application.Initialize but it is too late by then. As I see it the only choice I have is to put it in the initialization of the unit that needs the DecimalSeparator to be changed, is this the case? Thanks in advance for any advice.

    Read the article

  • How do I add text to curved image?

    - by miki123
    $config['source_image'] = '/path/to/image/mypic.jpg'; $config['wm_text'] = 'Copyright 2006 - John Doe'; $config['wm_type'] = 'text'; $config['wm_font_path'] = './system/fonts/texb.ttf'; $config['wm_font_size'] = '16'; $config['wm_font_color'] = 'ffffff'; $config['wm_vrt_alignment'] = 'bottom'; $config['wm_hor_alignment'] = 'center'; $config['wm_padding'] = '20'; $this->image_lib->initialize($config); $this->image_lib->watermark(); This is water mark code in php, it is working fine when we add text to curve image like mug image, the letter is not overlap the curved image how can we overcome?

    Read the article

  • C static variables and intialization

    - by yCalleecharan
    Hi, If I have a global static variable x like in this code #include <stdio.h> #include <stdio.h> static int x; int main(void) { DO SOMETHING WITH x HERE x++; } What will be difference if I opted to initialize x to a value first say as in static int x = 0; before entering "main"? In my first case where I didn't assign a value to x, does the compiler implicitly know that x is to be set to zero as it's a static variable? I heard that we can do this with static variables. Thanks a lot...

    Read the article

  • RS-232 confusion under C++

    - by rock
    What's the problem in given code? Why it is not showing the output for rs232 when we connect it by the d-9 connector with the short of pin number 2 & 3 in that? #include <bios.h> #include <conio.h> #define COM1 0 #define DATA_READY 0x100 #define SETTINGS ( 0x80 | 0x02 | 0x00 | 0x00) int main(void) { int in, out, status; bioscom(0, SETTINGS, COM1); /*initialize the port*/ cprintf("Data sent to you: "); while (1) { status = bioscom(3, 0, COM1); /*wait until get a data*/ if (status & DATA_READY) if ((out = bioscom(2, 0, COM1) & 0x7F) != 0) /*input a data*/ putch(out); if (kbhit()) { if ((in = getch()) == 27) /* ASCII of Esc*/ break; bioscom(1, in, COM1); /*output a data*/ } } return 0; }

    Read the article

  • static, define, and const in C

    - by yCalleecharan
    Hi, I've read that static variables are used inside function when one doesn't want the variable value to change/initialize each time the function is called. But what about defining a variable static in the main program before "main" e.g. #include <stdio.h> static double m = 30000; int main(void) { value = m * 2 + 3; } Here the variable m has a constant value that won't get modified later in the main program. In the same line of thought what difference does it make to have these instead of using the static definition: const double m = 30000; or #define m 30000 //m or M and then making sure here to use double operations in the main code so as to convert m to the right data type. Thanks a lot...

    Read the article

  • hadoop mapper static initialisation

    - by rakeshr
    Hi, I have a code fragment in which I am using a static code block to initialize a variable. public static class JoinMap extends Mapper<IntWritable, MbrWritable, LongWritable, IntWritable> { ....... public static RTree rt = null; static { String rtreeFileName = "R.rtree"; rt = new RTree(rtreeFileName); } public void map(IntWritable key, MbrWritable mbr,Context context) throws IOException, InterruptedException { ......... List elements = rt.overlaps(mbr.getRect()); ....... } } My problem is that the variable rt in the above code fragment is not getting initialised. Can anybody suggest a fix or an alternate way to initialise the variable. I don't want to initialise it inside my map function since that slows down the entire process.

    Read the article

  • What is a good practice for handling SQL connections within a WCF call?

    - by Rising Star
    Suppose I want to create a (stateless) WCF service with three methods exposed on an endpoint: performSqlOperationA(), performSqlOperationB(), and performSqlOperationC(). Each method inserts data into a SQL database. The way I've seen things done at my office, each method would begin with code to initialize a SqlConnection object. Each method would end with code to safely dispose it. What is a good practice for coding these WCF methods so that the SqlConnection object is initialized and disposed in each method without having to do these things in each method? I know that I can have the connection initialized in the constructor for the class for the WCF methods, but I don't know about disposing it... The calls cannot be wrapped in a using block. One solution I'm familiar with is PostSharp, which allows me to set an attribute which causes specific code to automatically run at the beginning and end of each method call, but it would be greatly preferable to do this with only the .net framework.

    Read the article

  • storing an integer constant other than zero in a pointer variable

    - by benjamin button
    int main() { int *d=0; printf("%d\n",*d); return 0; } this works fine. >cc legal.c > ./a.out 0 if i change the statement int *d=0; to int *d=1; i see the error. cc: "legal.c", line 6: error 1522: Cannot initialize a pointer with an integer constant other than zero. so its obvious that it will allow only zero.i want to know what happens inside the memory when we do this int *d=0 which is making it valid syntax. I am just asking this out of curiosity!

    Read the article

  • how to use TinyMCE(rich text editor) in google-maps info window..

    - by zjm1126
    this is the demo rar file:http://omploader.org/vM3U1bA when i drag the red block to the google-maps ,it will be changed to a marker, and it will has TinyMCE when you click the info window, but my program is : it can not be written when i click it the second time, the first time: the second time(can not be written): and my code is : <!DOCTYPE html PUBLIC "-//WAPFORUM//DTD XHTML Mobile 1.0//EN" "http://www.wapforum.org/DTD/xhtml-mobile10.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta name="viewport" content="width=device-width,minimum-scale=0.3,maximum-scale=5.0,user-scalable=yes"> </head> <body onload="initialize()" onunload="GUnload()"> <style type="text/css"> *{ margin:0; padding:0; } </style> <!--<div style="width:100px;height:100px;background:blue;"> </div>--> <div id="map_canvas" style="width: 500px; height: 300px;"></div> <div class=b style="width: 20px; height: 20px;background:red;position:absolute;left:700px;top:200px;"></div> <div class=b style="width: 20px; height: 20px;background:red;position:absolute;left:700px;top:200px;"></div> <script src="jquery-1.4.2.js" type="text/javascript"></script> <script type="text/javascript" src="tiny_mce.js"></script> <script src="jquery-ui-1.8rc3.custom.min.js" type="text/javascript"></script> <script src="http://maps.google.com/maps?file=api&amp;v=2&amp;key=ABQIAAAA-7cuV3vqp7w6zUNiN_F4uBRi_j0U6kJrkFvY4-OX2XYmEAa76BSNz0ifabgugotzJgrxyodPDmheRA&sensor=false"type="text/javascript"></script> <script type="text/javascript"> var aFn; //********** function initialize() { if (GBrowserIsCompatible()) { var map = new GMap2(document.getElementById("map_canvas")); var center=new GLatLng(39.9493, 116.3975); map.setCenter(center, 13); aFn=function(x,y){ var point =new GPoint(x,y) point = map.fromContainerPixelToLatLng(point); //console.log(point.x+" "+point.y) var marker = new GMarker(point,{draggable:true}); var a=$( '<form method="post" action="" style="height:100px;overflow:hidden;width:220px;">'+ '<textarea id="" class="mce" name="content" cols="22" rows="5" style="border:none">sss</textarea>'+ '</form>') a.click(function(){ // }) GEvent.addListener(marker, "click", function() { marker.openInfoWindowHtml(a[0]); }); /****************** GEvent.addListener(marker, 'click', function() { marker.openInfoWindowHtml('<div contentEditable="true" ' + 'style="height: 100px; overflow: auto;">' + 'wwww</div>'); }); ***************/ map.addOverlay(marker); /********** var marker = new GMarker(point, {draggable: true}); GEvent.addListener(marker, "dragstart", function() { map.closeInfoWindow(); }); GEvent.addListener(marker, "dragend", function() { marker.openInfoWindowHtml("????..."); }); map.addOverlay(marker); //*/ } $(".b").draggable({ revert: true, revertDuration: 0 }); $("#map_canvas").droppable({ drop: function(event,ui) { //console.log(ui.offset.left+' '+ui.offset.top) aFn(event.pageX-$("#map_canvas").offset().left,event.pageY-$("#map_canvas").offset().top); } }); } } //********** $(".mce").live("click", function(){ var once=0; mce(); }); function mce(once){ if(once)return; tinyMCE.init({ // General options mode : "textareas", theme : "advanced", plugins : "safari,pagebreak,style,layer,table,save,advhr,advimage,advlink,emotions,iespell,inlinepopups,insertdatetime,preview,media,searchreplace,print,contextmenu,paste,directionality,fullscreen,noneditable,visualchars,nonbreaking,xhtmlxtras,template", // Theme options theme_advanced_buttons1 : "bold,forecolor,|,justifyleft,justifycenter,justifyright,|,fontsizeselect", theme_advanced_buttons2 : "", theme_advanced_buttons3 : "", theme_advanced_buttons4 : "", theme_advanced_toolbar_location : "top", theme_advanced_toolbar_align : "left", theme_advanced_statusbar_location : "bottom", theme_advanced_resizing : true, // Example content CSS (should be your site CSS) content_css : "css/example.css", // Drop lists for link/image/media/template dialogs template_external_list_url : "js/template_list.js", external_link_list_url : "js/link_list.js", external_image_list_url : "js/image_list.js", media_external_list_url : "js/media_list.js", // Replace values for the template plugin template_replace_values : { username : "Some User", staffid : "991234" } }); once=1; } //********** </script> </body> </html>

    Read the article

  • define method for instance of class

    - by aharon
    Let there be class Example defined as: class Example def initialize(test='hey') self.class.send(:define_method, :say_hello, lambda { test }) end end On calling Example.new; Example.new I get a warning: method redefined; discarding old say_hello. This, I conclude, must be because it defines a method in the actual class (which makes sense, from the syntax). And that, of course, would prove disastrous should there be multiple instances of Example with different values in their methods. Is there a way to create methods just for the instance of a class from inside that instance? Thanks so much.

    Read the article

  • Resharper: how to force introducing new private fields at the bottom of the class?

    - by Igor Brejc
    Resharper offers a very useful introduce and initialize field xxx action when you specify a new parameter in a constructor like: Constructor (int parameter) The only (minor) nuisance is that it puts the new field at the beginning of the class - and I'm a fan of putting private parts as far away as possible from the prying eyes of strangers ;). If, however, you already have some private fields in the class, Resharper will put the new field "correctly" (note the quotes, I don't want to start a flame war over this issue) next to those, even if they are at the end of the class. Is there a way to force Resharper to always put new fields at the end of the class? UPDATE: OK, I forgot to mention I know about the "Type Members Layout in Options" feature, but some concrete help on how to modify the template to achieve fields placement would be nice.

    Read the article

  • Python 3.0 - Dynamic Class Instance Naming

    - by Jon
    I want to use a while loop to initialize class objects with a simple incremented naming convention. The goal is to be able to scale the number of class objects at will and have the program generate the names automatically. (ex. h1...h100...h1000...) Each h1,h2,h3... being its own instance. Here is my first attempt... have been unable to find a good example. class Korker(object): def __init__(self,ident,roo): self.ident = ident self.roo = roo b = 1 hwinit = 'h' hwstart = 0 while b <= 10: showit = 'h' + str(b) print(showit) #showit seems to generate just fine as demonstrated by print str(showit) == Korker("test",2) #this is the line that fails b += 1 The errors I get range from a string error to a cannot use function type error.... Any help would be greatly appreciated.

    Read the article

  • Ruby execute code in class getting inherited to

    - by AdamB
    I'm trying to be able to have a global exception capture where I can add extra information when an error happens. I have two classes, "crawler" and "amazon". What I want to do is be able to call "crawl", execute a function in amazon, and use the exception handling in the crawl function. Here are the two classes I have: require 'mechanize' class Crawler Mechanize.html_parser = Nokogiri::HTML def initialize @agent = Mechanize.new end def crawl puts "crawling" begin #execute code in Amazon class here? rescue Exception => e puts "Exception: #{e.message}" puts "On url: #{@current_url}" puts e.backtrace end end def get(url) @current_url = url @agent.get(url) end end class Amazon < Crawler #some code with errors def stuff page = get("http://www.amazon.com") puts page.parser.xpath("//asldkfjasdlkj").first['href'] end end a = Amazon.new a.crawl Is there a way I can call "stuff" inside of "crawl" so I can use that exception handling over the entire stuff function? Is there a better way to accomplish this?

    Read the article

  • Amazon EC2 multiple servers share session state

    - by Theofanis Pantelides
    Hi everyone, I have a bunch of EC2 servers that are load balanced. Some of the servers are not sharing session, and users keep getting logged in and out. How can I make all the server share the one session, possibly even using a partitionresolver solution public class PartitionResolver : System.Web.IPartitionResolver { private String[] partitions; public void Initialize() { // create the partition connection string table // web1, web2 partitions = new String[] { "192.168.1.1" }; } public String ResolvePartition(Object key) { String oHost = System.Web.HttpContext.Current.Request.Url.Host.ToLower().Trim(); if (oHost.StartsWith("10.0.0") || oHost.Equals("localhost")) return "tcpip=127.0.0.1:42424"; String sid = (String)key; // hash the incoming session ID into // one of the available partitions Int32 partitionID = Math.Abs(sid.GetHashCode()) % partitions.Length; return ("tcpip=" + partitions[partitionID] + ":42424"); } } -theo

    Read the article

  • Balanced Search Tree Query, Asymtotic Analysis..

    - by AGeek
    Hi, The situation is as follows:- We have n number and we have print them in sorted order. We have access to balanced dictionary data structure, which supports the operations serach, insert, delete, minimum, maximum each in O(log n) time. We want to retrieve the numbers in sorted order in O(n log n) time using only the insert and in-order traversal. The answer to this is:- Sort() initialize(t) while(not EOF) read(x) insert(x,t); Traverse(t); Now the query is if we read the elements in time "n" and then traverse the elements in "log n"(in-order traversal) time,, then the total time for this algorithm (n+logn)time, according to me.. Please explain the follow up of this algorithm for the time calculation.. How it will sort the list in O(nlogn) time?? Thanks.

    Read the article

  • C pointer array scope and function calls

    - by juvenis
    I have this situation: { float foo[10]; for (int i = 0; i < 10; i++) { foo[i] = 1.0f; } object.function1(foo); // stores the float pointer to a const void* member of object } object.function2(); // uses the stored void pointer Are the contents of the float pointer unknown in the second function call? It seems that I get weird results when I run my program. But if I declare the float foo[10] to be const and initialize it in the declaration, I get correct results. Why is this happening?

    Read the article

  • Error showing is NullPointerException [duplicate]

    - by user3659612
    This question already has an answer here: How to check a string against null in java? 11 answers I was trying to code a wifi scanner which does 20 scans but it shows NullPointerException at if(bssid[j].equals(null)){ My code is slightly huge package com.example.scanner; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStreamWriter; import java.text.SimpleDateFormat; import java.util.Date; import java.util.List; import android.annotation.SuppressLint; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.net.wifi.ScanResult; import android.net.wifi.WifiInfo; import android.net.wifi.WifiManager; import android.os.Bundle; import android.os.Environment; import android.support.v7.app.ActionBarActivity; import android.view.Menu; import android.view.View; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.ListView; import android.widget.Toast; public class MainActivity extends ActionBarActivity { WifiManager wifi; WifiScanReceiver wifireciever; WifiInfo info; Button scan, save; List<ScanResult> wifilist; ListView list; String wifis[]; String name; String[] ssid = new String[100]; String[] bssid = new String[100]; int[] lvl = new int[100]; int[] count = new int[100]; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.fragment_main); list=(ListView)findViewById(R.id.listView1); scan=(Button)findViewById(R.id.button1); save=(Button)findViewById(R.id.button2); scan.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub wifi=(WifiManager)getSystemService(Context.WIFI_SERVICE); if (wifi.isWifiEnabled()==false){ wifi.setWifiEnabled(true); } wifireciever = new WifiScanReceiver(); for (int i=0;i<20;i++){ registerReceiver(wifireciever, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)); wifi.startScan(); if (i==19){ Toast.makeText(getBaseContext(), "Scan Finish", Toast.LENGTH_LONG).show(); } } } }); save.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub savedata(); } }); } protected void savedata() { // TODO Auto-generated method stub try { File sdcard = Environment.getExternalStorageDirectory(); File directory = new File(sdcard.getAbsolutePath() + "/WIFI_RESULT"); directory.mkdirs(); name = new SimpleDateFormat("yyyy-MM-dd HH mm ss").format(new Date()); File file = new File(directory,name + "wifi_data.txt"); FileOutputStream fou = new FileOutputStream(file); OutputStreamWriter osw = new OutputStreamWriter(fou); try { for (int i =0; i < list.getCount(); i++){ osw.append(list.getItemAtPosition(i).toString()); } osw.flush(); osw.close(); Toast.makeText(getBaseContext(), "Saved", Toast.LENGTH_LONG).show(); } catch (IOException e){ e.printStackTrace(); } } catch (FileNotFoundException e){ e.printStackTrace(); } } class WifiScanReceiver extends BroadcastReceiver { @SuppressLint("UseValueOf") public void onReceive(Context c, Intent intent) { int a =0; wifi.startScan(); List<ScanResult> wifilist = wifi.getScanResults(); if (a<wifilist.size()){ a=wifilist.size(); } for(int j=0;j<wifilist.size();j++){ if(bssid[j].equals(null)){ ssid[j] = wifilist.get(j).SSID.toString(); bssid[j] = wifilist.get(j).BSSID.toString(); lvl[j] = wifilist.get(j).level; count[j]++; } else if (bssid[j].equals(wifilist.get(j).BSSID.toString())){ lvl[j] = lvl[j] + wifilist.get(j).level; count[j]++; } } wifis = new String[a]; for (int i =0; i<a; i++){ wifis[i] = ("\n" + ssid[i] + "\n AP Address" + bssid[i] + "\n Signal Strength:" + lvl[i]/count[i]).toString(); } list.setAdapter(new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_list_item_1,wifis)); } } protected void onDestroy() { unregisterReceiver(wifireciever); super.onPause(); } protected void onResume() { registerReceiver(wifireciever, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)); super.onResume(); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } } NullPointerException at that point mean my array bssid isn't initialize. So I just want to know how to initialize it in main activity so that I can use that string bssid anywhere.

    Read the article

  • ReportViewer datadinding (WPF)

    - by user512150
    I have a rdlc file and I try to show it using report viewer control in WPF. My DataSource is called 'OfficeDataSet' and DataSet used in report is called 'Address'. I try to initialize report viewer (I put it in WindowsFormsHost) like this: private void PrepareReport() { reportDataSource = new ReportDataSource(); officeDataSet = new OfficeDataSet(); adapter = new AddressTableAdapter(); adapter.Fill(officeDataSet.Address); reportDataSource.Name = "OfficeDataSet_Address"; reportDataSource.Value = officeDataSet.Address; viewerInstance.LocalReport.DataSources.Add(reportDataSource); viewerInstance.LocalReport.ReportEmbeddedResource = "WpfApplication1.Reports.TestReport.rdlc"; viewerInstance.Location = new System.Drawing.Point(0, 0); viewerInstance.RefreshReport(); } but I got the message "A data source instance has not been supplied for the data source 'Address'". Anybody know what can be wrong with this code? (I'm totally new in WPF and Reporting Services).

    Read the article

  • To "null" or not to "null" my class's attributes

    - by Helper Method
    When I write a class in Java, I like to initialize the attributes which are set to a default value directly and attributes which are set by the caller in the constructor, something like this: public class Stack<E> { private List<E> list; private size = 0; public Stack(int initialCapacity) { list = new ArrayList<E>(initialCapacity); } // remainder omitted } Now suppose I have a Tree class: public class Tree<E> { private Node<E> root = null; // no constructor needed, remainder omitted } Shall I set the root attribute to null, to mark that it is set to null by default, or omit the null value?

    Read the article

< Previous Page | 52 53 54 55 56 57 58 59 60 61 62 63  | Next Page >