Month: October 2022

[Solved] How to change the order properties are serialized in C#

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You can order them by using Order on DataMember like this: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Runtime.Serialization; namespace Mvm.SATWeb.Domain { [Serializable, DataContract] public class puntoDeAtencion { public puntoDeAtencion() { } [DataMember(Order = 0)] public string codigoPuntoAtencion { get; set; } [DataMember(Order = 1)] public decimal montoIngreso { get; set; } [DataMember(Order … Read more

[Solved] ‘void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)’ on a null object reference &

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So for the menu item, we do in this way 1) To specify the options menu for an activity, override onCreateOptionsMenu(). In this method, you can inflate your menu resource:- @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.game_menu, menu); return true; } 2)Handling click events: You can match this ID against known … Read more

[Solved] Finding The Area Of A Triangle

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The reason you’re not getting a correct answer is because you are not finding the sides correctly. However, after finding the side length you can get the answer. Here is what I did: public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.println(“Enter three points for a triangle:”); //Store the values in an … Read more

[Solved] How to compare List of Long and return the number of matches [closed]

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You can try something like this: Collection<Integer> id = Arrays.asList(2316, 2317, 2318); Collection<Integer> existingId = Arrays.asList(1004, 1762, 1892, 1342, 1942, 2316); Collection<Integer> similar = new HashSet<Integer>( id ); similar.removeAll( existingId ); System.out.println(“Different:”+similar); System.out.println(“#of items that are differnt:”+similar.size()); 1 solved How to compare List of Long and return the number of matches [closed]

[Solved] How to properly save Downloaded Images to app specified folder

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Try This: File RootFile; File root = Environment.getExternalStorageDirectory(); File dir = new File(root.getAbsolutePath() + “/MyAppFolder/”); String title=” <your title>”; if (!dir.exists()) { dir.mkdirs(); } RootFile = new File(dir, title); solved How to properly save Downloaded Images to app specified folder

[Solved] How to know what r,g,b values to use for get other colours to paint a JFrame dynamically?

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Your current approach is indeed not easily generalizable. The hard-coded parts of the buttons for “blue” and “green”, and especially the special methods like blueToGreen make it impossible to extend the number of colors with reasonable effort. (You don’t want to create methods blueToYellow, blueToRed, blueToTheThirdColorFromThisListForWhichIDontKnowAName …). There are many possible ways of generalizing this. … Read more

[Solved] Toogle icon (play/pause), and stop when another button is clicked

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Well, after a lot of research i could get something that for now it’s ok for me. I just want to share if anybody else gets my same problem This are my scripts (i needed to use 2) <script language=”javascript”> var currentsound; function play_pause(player) { var myAudio = document.getElementById(player); if(myAudio.paused) { myAudio.play(); } else{ myAudio.pause(); … Read more

[Solved] NumberFormatException: Invalid long: “588657600000-0400” [closed]

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What about split the input string in 2 values ? Date foo2 = new Date(Long.parseLong(“-588657600000”) + Long.parseLong(“-0400”)); btw, that date is : Mon May 07 16:59:59 BRT 1951 hehehe EDIT : this dont check the input values, and assume allways will have the minus import java.util.Date; public class MiMiMi { public static void main(String[] args) … Read more

[Solved] How to make two dimensional LinkedList in java?

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from your question, I think (not 100% sure) you are looking for java.util.LinkedHashMap<K, V> in your case, it would be LinkedHashMap<String, Double> from java doc: Hash table and linked list implementation of the Map interface, with predictable iteration order. This implementation differs from HashMap in that it maintains a doubly-linked list running through all of … Read more

[Solved] How to design mathematical program which calculate the derivative of a function using python? [closed]

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Taking a function is easy… it’s just like any other argument. def example(somefunc): somefunc() example(someFunction) example(lambda x: x ** 2) Returning one is a little trickier, but not much. You can return a lambda: def example2(): return lambda x: x + 1 Or you can build an inner function, and return that def example3(): def … Read more