Questions tagged as 'java'

Tagged questions
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How to connect to a middleware in java to do POST, GET and PUT with JSON? [closed]

they ask me to do POST, GET and PUT with a JSON to a middleware server, they gave me a URL to make my connection and send a JSON to then do the respective GET yPUT, the POST, GET and PUT have an address every one For example: POST / Net / Person...
asked by 27.09.2018 / 11:16
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Problem java.lang.nullpointerexception [duplicated]

I am doing the implementation of the prim algorithm     s = q2.poll (). getVal (); if(visited[s]==false) { mst.add(q.poll()); } else { while(visited[s]==true) { q.poll();...
asked by 06.10.2018 / 23:12
2
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Remove Switch case by a for?

I do not know how to face the following: I have the following code part: for(int i = 0; i < 2; i++){ ArrayList<String> dade = new ArrayList<String>(); switch (i) { case 0:...
asked by 16.10.2018 / 13:33
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Problem with java exercise [closed]

package sistemastiquetes; import java.util.Scanner; public class SistemasTiquetes { public static void main(String[] args) { Scanner scanner = new Scanner (System.in); String ciudadOrigen,ciudadDestino,nombreCompleto,edad...
asked by 15.03.2018 / 03:52
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Compile Cordova JDK 8u191 or 8u192

I have problems compiling an ionic3 app, I have read that if you have many java JDK versions that complicates it, you could give me your opinion based on your experiences on which JDK I should install. Thank you in advance.     
asked by 21.12.2018 / 18:15
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AdMob ads really do not appear

the ads do not appear to me, if I put a test id, yes. Is it true that for the real ads to appear first the app must be uploaded to the PlayStore ?? Test ads work, but not really. The ids I put them with XXX to not show them but they are th...
asked by 26.12.2018 / 18:58
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GENERATE RANDOM NUMBERS IN A VECTOR N JAVA

fellow nights, I'm learning programming, so I'm struggling with something. My problem is that I have a vector and I ask for numbers. But my current problem is that for example if I want to ask for 1000 numbers to my program, I want you to giv...
asked by 13.12.2018 / 08:06
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Error starting service with JBoss

I am working with Hibernate 4.3, JSF 2.0 and JBoss 7.0.1, and when launching the project view I get the following exception: 19:44:23,592 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-5) MSC00001: Failed to start service jboss.deplo...
asked by 29.09.2016 / 03:19
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How can I change the status of a checkbox in java? [closed]

I have a delete a whole checkbox that when pressed it selects all the records and when I click it, it deletes them but after deleting them the checkbox stays with the brand and I want to remove it but I do not know how to put the checkbox to its...
asked by 22.12.2016 / 22:41
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How to make this parameter builder [closed]

Bet Properties: User ID, String type, searchable. Identifier of the user who makes the bet. Date of the bet, of LocalDateTime type, consultable. Record the moment in which make the bet. Match, type MatchFutbol (This comes in another cl...
asked by 15.10.2016 / 18:57