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  • Is there a method I can override on a JavaScript object to control what is displayed by console.log?

    - by agnoster
    I'm thinking in particular of Chrome, though Firebug would be interesting to. I've tried toString() and valueOf(), but neither of those seem to be used. Interestingly, if I take a function it'll display the function definition - but then if I add a toString() method it will show null! var a = function(){}; console.log(a); // output: function (){} a.toString = function(){ return 'a'; }; console.log(a); // output: null a.valueOf = function(){ return 'v'; }; console.log(a); // output: null Any ideas?

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  • How to get data from dynamically created EditText views and insert it into an array?

    - by Snwspeckle
    So basically what I need my program to do at this point is that when I click the submit button, I need to loop through each dynamic row of the ListView and grab the value in the EditText view and then insert that into an array which I will do further calculations after. Here is my code right now. package com.hello_world; import java.util.ArrayList; import com.hello_world.ByteInputActivity.MyAdapter.ViewHolder; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.util.Log; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnFocusChangeListener; import android.view.View.OnKeyListener; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.ListView; import android.widget.TextView; public class ByteInputActivity extends Activity { private ListView myList; private MyAdapter myAdapter; private Integer resQuestions; private Integer indexVal = 0; private View caption; ViewHolder holder; ArrayList<Integer> intArrayList = new ArrayList<Integer>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.fieldlist); //Gets number of questions from MainActivity Bundle extras = getIntent().getExtras(); if(extras !=null) { resQuestions = extras.getInt("index"); } myList = (ListView) findViewById(R.id.FieldList); myList.setItemsCanFocus(true); myAdapter = new MyAdapter(); myList.setAdapter(myAdapter); Button submit = (Button) findViewById(R.id.btn_New); submit.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { for (int i = 0; i < myList.getCount() ; i++) { View vListSortOrder; vListSortOrder = myList.getChildAt(i); String temp = holder.caption.getText().toString(); Log.e("VALUES", "" +temp); } } }); } public class MyAdapter extends BaseAdapter { private LayoutInflater mInflater; public ArrayList myItems = new ArrayList(); public MyAdapter() { mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); for (int i = 0; i < resQuestions; i++) { ListItem listItem = new ListItem(); listItem.caption = "Index " + i; listItem.indexText = "Index " + i; myItems.add(listItem); indexVal += 1; } notifyDataSetChanged(); } public int getCount() { return myItems.size(); } public Object getItem(int position) { return position; } public long getItemId(int position) { return position; } public View getView(int position, View convertView, ViewGroup parent) { if (convertView == null) { holder = new ViewHolder(); convertView = mInflater.inflate(R.layout.item, null); holder.indexText = (TextView) convertView .findViewById(R.id.textView1); holder.caption = (EditText) convertView .findViewById(R.id.ItemCaption); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } //Fill EditText with the value you have in data source holder.caption.setText(""); holder.caption.setId(position); holder.indexText.setText("Index " + position); holder.indexText.setId(position); //we need to update adapter once we finish with editing holder.caption.setOnFocusChangeListener(new OnFocusChangeListener() { public void onFocusChange(View v, boolean hasFocus) { if (!hasFocus){ final int position = v.getId(); final EditText Caption = (EditText) v; myItems.set(position, Caption.getText().toString()); } } }); return convertView; } class ViewHolder { EditText caption; TextView indexText; } class ListItem { String caption; String indexText; } } }

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  • Searching in a TreeMap (Java)

    - by Kronen
    I need to do a search in a map of maps and return the keys this element belong. I think this implementation is very slow, can you help me to optimize it?. I need to use TreeSet and I can't use contains because they use compareTo, and equals/compareTo pair are implemented in an incompatible way and I can't change that. (sorry my bad english) Map m = new TreeSet(); public String getKeys(Element element) { for(Entry e : m.entrySet()) { mapSubKey = e.getValue(); for(Entry e2 : mapSubKey.entrySet()) { setElements = e2.getValue(); for(Element elem : setElements) if(elem.equals(element)) return "Key: " + e.getKey() + " SubKey: " + e2.getKey(); } } }

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  • database search function on an HTML page possible?

    - by synergy989
    Not sure if this is against stackoverflow rules as it's not a specific code question but I really need a little help. I want to know if it is possible to create a search feature (search box) on an HTML webpage that will query a database and return the results? Basically I have a database of products and their related categories. A user would come to the website, enter the category in the search field...somehow query the database and return the results on a new page. Note: the results page doesn't have to be HTML (could be PHP etc). If you could also include a little guidance on how (please nothing detailed, just need a direction). Thank you!

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  • Can anybody explain the working of following code...?

    - by Siddhi
    Can anybody explain the working of following code...? interface myInterface{} public class Main { public static void main(String[] args) { System.out.println(new myInterface(){public String toString(){return "myInterfacetoString";}}); System.out.println(new myInterface(){public String myFunction(){return "myInterfacemyFunction";}}); } } Output is... myInterfacetoString primitivedemo.Main$2@9304b1 All answers saying that myInterface in println() statement is anonymous class. But as I already declared it as an interface, why does it allow me to create anonymous class of same name....? again...if these are anonymous classes then class main should allow me to give any name to these anonymous classes..But if try to do so..I'm getting compilation error

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  • between syntax, are there any equal function

    - by gcc
    /* char **mainp=malloc(sizeof(char *)*2); mainp[0]=malloc(sizeof(char)*300); mainp[1]=malloc(sizeof(char )*300); */ *I have some input about propositional calculus *After calculating some math funtion-removing paranthesis-changing"&" with ","-replacing "|" with"," I have >> (1) P,-Q,Q,-R is stored in mainp[0] R,A,P,B,F is stored in mainp[1] *My question is: Between comma , I have want to compare two pointer array. If there is any equal two or more functions(Q,-R is function representation) ,function which you will show me how to write must return int. According to example (1),function will return 1 (I expect like that) /*I have som thought://which function should I have use:*/ in for loop if( strspn(mainp[0][i])==1 ) increment d; continue; or in for loop srtcmp(mainp[0][i],mainp[1]);

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  • Switching back into the middle of a function in Actionscript

    - by J.Ded.
    I need to return to my original function after capturing an event (downloading something) with another function. The original function needs to return a value, which depends on the downloaded data. So, I'd like to pause original function for the time needed for the download and the eventhandler function to complete it's work, and resume it afterwards. The obvious way is to set a flag value (both the original function and the eventhandler are within the same class) and make the original function check it until the eventhandler function changes the flag. But that would be wasteful, and my AS is slow enough already:) [other parts of the application utilise some heavy graphics]. Is there another way? Like an event that gets captured "in the middle" of the function? Or some other form of flow control?

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  • Hibernate mysql groupe by day whith 0 entities

    - by Touhami
    I have this function i need to do that in sql (hibernate or mysql) or a java function that interpert the array of results select DAY(affaire.docCreationDate), count(affaire.docfullName) from CRMAffaireCode.AffaireClass as affaire where affaire.docfullName like 'CRMAffaire.Affaire%' and affaire.docCreationDate = '" + startDate + " 00:00:00' and affaire.docCreationDate <= '" + endDate + " 23:59:59' GROUP BY DAY(affaire.docCreationDate)" i have this entitie count in my table 2012-10-05 3 2012-10-06 0 2012-10-07 7 2012-10-08 13 2012-10-09 9 2012-10-10 0 2012-10-11 0 2012-10-12 3 the request return me this values 5 3 7 7 8 13 9 9 12 3 in this way i loose three lignes that have 0 as value, i need a request that return me this 5 3 6 0 7 7 8 13 9 9 10 0 11 0 12 3

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  • singleton pattern in java- lazy Intialization

    - by flash
    public static MySingleton getInstance() { if (_instance==null) { synchronized (MySingleton.class) { _instance = new MySingleton(); } } return _instance; } 1.is there a flaw with the above implementation of the getInstance method? 2.What is the difference between the two implementations.? public static synchronized MySingleton getInstance() { if (_instance==null) { _instance = new MySingleton(); } return _instance; } I have seen a lot of answers on the singleton pattern in stackoverflow but the question I have posted is to know mainly difference of 'synchronize' at method and block level in this particular case.

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  • NSString inheritance

    - by Stef
    Hi, I'm doing an useless thing for my first step in Obj-C @interface String : NSString { int m_isnull; } - (id) init; - (int) isNull; @end @implementation String - (id) init { self = [super init]; m_isnull=1; return self; } - (int) isNull { return m_isnull; } @end test : String *a; a=@"ok"; Works fine, but just 2 little questions 1) When I'm compiling I have this warning warning: incompatible Objective-C types assigning 'struct NSString *', expected 'struct String *' I don't know how to avoid it !? 2) a=@"ok" is a fastest way to initialize a string, but when I'm debugging, I don't stop by at my init constructor why ?

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  • Where to declare variable? C#

    - by user1303781
    I am trying to make an average function... 'Total' adds them, then 'Total' is divided by n, the number of entries... No matter where I put 'double Total;', I get an error message. In this example I get... Use of unassigned local variable 'Total' If I put it before the comment, both references show up as error... I'm sure it's something simple..... namespace frmAssignment3 { class StatisticalFunctions { public static class Statistics { //public static double Average(List<MachineData.MachineRecord> argMachineDataList) public static double Average(List<double> argMachineDataList) { double Total; int n; for (n = 1; n <= argMachineDataList.Count; n++) { Total = argMachineDataList[n]; } return Total / n; } public static double StDevSample(List<MachineData.MachineRecord> argMachineDataList) { return -1; } } } }

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  • traverse a string char by char javascript

    - by mikeandike
    function SimpleSymbols(str) { var letter =['a','b','c','d','e','f','g','h','i','j', 'k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']; var newstr = ""; for (var i = 0; i<str.length; i++){ if (str.charAt(i).toLowerCase() in letter){ newstr += "M"; } else{ newstr += "X"; } } return newstr; } If str is "Argument goes here" it returns XXXXXXXXX. WHy doesn't it return MMMMMMMMMM?

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  • activating the class need help.... :)

    - by asm_debuger
    this is my code... i dont anderstend way the class dont work... import java.awt.BorderLayout; import java.awt.Button; import java.awt.Color; import java.awt.GridLayout; import java.awt.Panel; public class Caldesinger { public Panel p1=new Panel(); public Button[] arr=new Button[20]; public String[] name = {"9","8","7","6","5","4","3","2","1","0","+","-","*","/",".","cos","sin","=","pow"}; public Caldesinger() { for (int i = 0; i < arr.length; i++) { this.arr[i]=new Button(""+name[i]); } } public Panel getP1() { return p1; } public void setP1(Panel p1) { this.p1 = p1; } public Button[] getArr() { return arr; } public void setArr(Button[] arr) { this.arr = arr; } public Object c() { this.p1.setLayout(new GridLayout(4,15)); for (int i = 0; i < arr.length; i++) { arr[i].setBackground(Color.LIGHT_GRAY); arr[i].setForeground(Color.orange); p1.add(arr[i]); } this.p1.setLayout(new GridLayout(4,15)); return this; } } the class desinge the applet this is the main: import java.applet.Applet; import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class Mainapp extends Applet implements ActionListener { Caldesinger desinge=new Caldesinger (); public void init() { this.setLayout(new BorderLayout()); this.desinge.c(); } public void ActionPerformed(ActionEvent arg0) { for (int i = 0; i <20; i++) { if(arg0.getSource()== this.desinge.arr[i]); } } } way the method c does not work? the method desinge the applet

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  • How to get a List ordered by the List it's filtered by?

    - by DaveDev
    I have a method as follows. It returns a list of MyTypes which appear to be ordered by myType.Id ascending by default. public List<MyType> GetMyTypes(List<int> ids) { return (from myType in db.MyTypes where ids.Contains(myType.Id) select new MyType { MyValue = myType.MyValue }).ToList(); } So if ids contains 302 300 301 the List returned contains items in ascending order. What do I need to do to return List<MyType> in the order of ids? Thanks edit: I've tried orderby ids.IndexOf(myType.Id) but it throws the exception Method 'Int32 IndexOf(Int32)' has no supported translation to SQL.

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  • How can you generate the same MD5 Hashcode in C# and Java?

    - by Sem Dendoncker
    Hi, I have a function that generates a MD5 hash in C# like this: MD5 md5 = new MD5CryptoServiceProvider(); byte[] result = md5.ComputeHash(data); StringBuilder sb = new StringBuilder(); for (int i = 0; i < result.Length; i++) { sb.Append(result[i].ToString("X2")); } return sb.ToString(); In java my function looks like this: MessageDigest m = MessageDigest.getInstance("MD5"); m.update(bytes,0,bytes.length); String hashcode = new BigInteger(1,m.digest()).toString(16); return hashcode; While the C# code generates: "02945C9171FBFEF0296D22B0607D522D" the java codes generates: "5a700e63fa29a8eae77ebe0443d59239". Is there a way to generate the same md5 hash for the same bytearray? Cheers

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  • javascript call url from different domain

    - by user246114
    Hi, I want to post some data via javascript to another domain. Something like: http://www.othersite.com/submitfunnyname?name=blah The other site (othersite.com) has a REST interface that you can call (well actually this is a get example) to submit a funny name to them. Can I do this already with javascript? I'm a little confused on this - I know if that service wants to return some data, I'd need to use something like JSON-P - even though here I'm submitting some data, I guess the service will return some message structure letting me know the result, so it would have to be JSON-P, right? Thanks

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  • Most efficient way to Update with Linq2Sql

    - by pranay
    can I update my employee record as given in below function or i have to make query of employee collection first and than i update data public int updateEmployee(App3_EMPLOYEE employee) { DBContextDataContext db = new DBContextDataContext(); db.App3_EMPLOYEEs.Attach(employee); db.SubmitChanges(); return employee.PKEY; } or i have to do this public int updateEmployee(App3_EMPLOYEE employee) { DBContextDataContext db = new DBContextDataContext(); App3_EMPLOYEE emp = db.App3_EMPLOYEEs.Single(e => e.PKEY == employee.PKEY); db.App3_EMPLOYEEs.Attach(employee,emp); db.SubmitChanges(); return employee.PKEY; } But i dont want to use second option is there any efficient way to update data

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  • Rails: saving a string on an object -- syntax problem?

    - by Veep
    Hey there, I am trying to write a simple function to clean a filename string and update the object. When I save a test string it works, but when I try to save the string variable I've created, nothing happens. But when I return the string, the output seems to be correct! What am I missing? def clean_filename clean_name = filename clean_name.gsub! /^.*(\\|\/)/, '' clean_name.gsub! /[^A-Za-z0-9\.\-]/, '_' clean_name.gsub!(/\_+/, ' ') #update_attribute(:filename, "test") #<-- correctly sets filename to test #update_attribute(:filename, clean_name) #<-- no effect????? WTF #return clean_name <-- seems to returns the correct string end Thank you very much.

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  • extracting string occurrence in c

    - by David78
    I have a string from a text file that look something like this: long_str = "returns between paragraphs 20102/34.23" - 9203 1232 "test" "basic HTML" Note: Quotes are part of the string. int match(char *long_str){ char * str; if ((str = strchr(long_str, '"')) != NULL) str++; // last " ? else return 1; return 0; } Using strstr I'm trying to get the whole substring between the last two quotes: "basic HTML". I'm just not quite sure what would be a good and efficient way of getting that match. I'm open to any other ideas on how to approach this. Thanks

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  • AJAX Panel not throwing exceptions

    - by Grant
    Hi, i have just noticed something strange in some asp.net markup. I have a standard form with a couple of textboxes and a submit button. When clicked the code behind will attempt to perform some logic and then return. If the input values are not valid it used to throw an exception. The moment i wrapped the controls in an AJAX update panel and try to submit bad data, no exception is thrown and the panel returns like nothing was wrong. Does anyone know how to return this to the previous behavior whilst keeping the update panel?

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  • Dividing n-bit binary integers

    - by Julian
    Was wondering if anyone could help me with creating a pseudocode for how to go about dividing n-bit binary integers. Here is what I'm thinking could possibly work right now, could someone correct this if I'm wrong: divide (x,y) if x=0: return (0,0) //(quotient, remainder) (q,r) = divide(floor(x/2), y) q=2q, r=2r if x is odd: r = r+1 if r >= y: r = r-y, q = q+1 return (q,r) Would you guys say that this general pseudocode algorithm would accomplish the intended task of dividing n-bit numbers or am I missing something in my psuedocode before I start coding up something that's wrong?

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  • How do I put these: @{$subset}, [@ext_subset], [$last_item] in PHP?

    - by Alex
    I'm having trouble translating a subroutine from Perl to PHP (I'm new to Perl). The entire subroutine is as follows: sub find_all_subsets { if (1 == scalar (@_)) {return [@_]} else { my @all_subsets = () ; my $last_item = pop (@_) ; my @first_subsets = find_all_subsets (@_) ; foreach my $subset (@first_subsets) { push (@all_subsets, $subset) ; my @ext_subset = @{$subset} ; push (@ext_subset, $last_item) ; push (@all_subsets, [@ext_subset]) ; } push (@all_subsets, [$last_item]) ; return (@all_subsets) ; } } My problem is that I really don't quite understand the Perl syntax, so I'm having trouble writing these @{$subset}, [@ext_subset] and [$last_item] in PHP. Thanks and sorry if the question is stupid.

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  • Misunderstanding function pointer - passing it as an argument

    - by Stef
    I want to pass a member function of class A to class B via a function pointer as argument. Please advise whether this road is leading somewhere and help me fill the pothole. #include <iostream> using namespace std; class A{ public: int dosomeA(int x){ cout<< "doing some A to "<<x <<endl; return(0); } }; class B{ public: B(int (*ptr)(int)){ptr(0);}; }; int main() { A a; int (*APtr)(int)=&A::dosomeA; B b(APtr); return 0; } This brilliant piece of code leaves me with the compiler error: cannot convert int (A::*)(int)' toint (*)(int)' in initialization Firstly I want it to compile. Secondly I don't want dosomeA to be STATIC.

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