[Solved] null pointer exception in java servlet [closed]

[ad_1] I got a “null pointer exception” fault in java servlet. Could someone tell me what happens? And how to avoid that? That happens when you’re trying to access/invoke some reference which is actually null. SomeObject someObject = null; someObject.doSomething(); // Throws NullPointerException. You need to make sure that you only access/invoke it when it … Read more

[Solved] spin the pin game – iphone sdk [closed]

[ad_1] Please read http://www.raywenderlich.com He has taken a lot of care in creating a great valuable resource for learning iPhone development, animation in particular. You’ll be ready in no time 😀 In a nutshell, there are three ways you can do this. use Cocos2D Use CoreAnimation Use UIView’s animation methods, but I’d favor the other … Read more

[Solved] How can I take an integer input from user and store it to an array? [closed]

[ad_1] Try changing the last line to: print str(number) This will change the list into a printable string representation. If you want to learn more about strings and formatting, check out Chapter 7 of the Python Tutorial. Actually, the whole tutorial is pretty awesome. 🙂 EDIT: David is correct in his comment below…print converts lists … Read more

[Solved] alert with background mask by jquery.? [closed]

[ad_1] On the demo you have custom built solution with a lot of options. Without using any plugins or custom scripts – you will not be able to customize alert dialog. very, very simple sample: .alert { width:200px; height:80px; margin:-40px 0 0 -100px; position:absolute; left:50%; top:50%; background:red; text-align:center; } $(‘#btnAlert’).click(function () { var $alertDiv = … Read more

[Solved] Autocomplete textbox with hyperlink

[ad_1] Let me give a snippet of code that i use function updateAutoSrch() { $(“#searchpro”).autocomplete({ source: function( request, response ) { $.ajax({ url: “search”, data: {proname: proname}, dataType: “json”, success: function( data ) { response( $.map( data, function( item ) { return { label: item.user_name, value: item.user_name, userid: item.user_id, profile_image_path: item.profile_image_path } })); } }); … Read more

[Solved] LINQ: Howto get person count by personid [closed]

[ad_1] Max : var biggestGrpOfPeopleHavingSamePersonId = people.GroupBy(x => x.personid).Max(x => x.Count()); Top : var top3peopleGroups = people.GroupBy(x => x.personid).OrderByDescending(x => x.Count()).Take(3); EDIT : The first query returns an element of type IGrouping<TKey,TValue> where TKey is of the same type of personid and TValue is of type Person. The second query returns an IEnumerable<> of objects … Read more

[Solved] How does this select in MongoDB [closed]

[ad_1] db.rendaxeducacao.aggregate([ {$math : {idh : 2000} // fiter only where idh=2000 }, {$group: { _id: 1, max_idheducacao : {$max : $idheducacao} // find max } }, {$project:{ // select cidade _id:0, cidade:1 } } ]) rendaxeducacao = collection [ad_2] solved How does this select in MongoDB [closed]

[Solved] Asp.net: Sorting with gridview and objectDataSource [closed]

[ad_1] Here is a question that has been previously answered. For the actual sorting, you would call collectionOfObjects.OrderBy(x => x.PropertyToSortOn); You could use a switch to change what to sort on based on what is passed into the method via the args. So it would look a little more like this switch(propertyName) { case “property1”: … Read more

[Solved] I accidentally updated my git android project and lost my changes which is not committed. Is there any way to recover my changes?

[ad_1] I understand your problem follow these steps to recover your local deleted file and code: Go to toolbar: VCS->Git->UnStash Changes From UnStash Changes pick recent Uncommitted changes Click to view button You will get a list of all files which get affected Now you can merge manually those files which are affected and one … Read more

[Solved] Cannot run a simple PHP file on the server [closed]

[ad_1] Have you installed PHP? – If so do the following: Start off by trying a simple script – call it say info.php: Ensure (assuming Apache) that you have it the web server configured – see http://php.net/manual/en/install.php If all this works then there is a problem with the script. [ad_2] solved Cannot run a simple … Read more