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Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured in ...

I got failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured in spring boot   I am working on spring boot import batch processing with gradle, YML properties file, but ...

Executing Stored Procedure using Spring JDBC Template

Technology: Spring-jdbc is the abstraction framework, it take care the below following list:   1) Defining connection parameters 2) Open Connection 3) Specify the statement 4) Prepare and execute statement/prepared statement ...

How to Split String From a Javascript File into Two Array String

I want split string from file into two array string......   file contain this-   Bangladesh= 109.408 India= 92.7478 Pakistan= 200.550 USA= 1.29221 Europe= 1.16989 UK= 1 SA= 4.85180 Australia= 1.90035 Can...

What is Containerization in Java?

Running software in containers is gaining in popularity for developers. Containers are typically collections of pieces of software and environment, running together in a single system. Developers take these systems and test them in the form of co...

How to Insert an Excel Table into Oracle Database

        Am trying to insert am excel table into oracle database and when i try i get issuesmy table to the database doesnt get formatted correct                     ...

How to Use Class For Sending Notification In Android?

I wanna create a library for sending a notification to my android app but i don't know how it works and what kind of data I should give to the function in the class. this is my code for sending a notification but I don't know how to put i...

How to Convert Json String to Json Object Containing XML

I want to convert json string to json object. I am using the following method.   public List<BusinessProcess> convertJsonToObject(String json)             throws JsonParseException, J...

How to Implemented Bulk Read from CouchBase in Java Code

I have written a code in Java to read multiple documents in bulk from a Bucket in CouchBase. I have made it functional somehow, but I don't understand how it works.    I'm making my project on NetBeans IDE. I copied this c...

How to Translate a C# Code into Java Language?

I need to translate this c# code into java, please     string sourceAddress = @"input.txt";   string astAddress = @"AddressSymbolTable.txt";   firstPass(sou...

How to Write a Two Pass Assembler Code in JAVA

I need a two-pass assembler code in java that takes input as assembly language code from text file and convert it to binary code according to the two flow charts in morris mano book Computer System Architecture.

How to Resolve Invoation Target Exception Error in JAVA

public class MainGUI extends Application {          public void start(Stage primaryStage) {                  class deck {      &nbs...

Complex Software Algorithm Problem (Java/C#)

Hi,   Can someone please assist in solving the attached complex software algorithm problem as attached (using Java or C#)   Thank you in advance

Drawing a circle on ImageView2 in same coordinates as ImageView1 if i tap a place in ImageView 1 and Vice versa

I'm trying to make find the difference game app, but I never made anything like that and since I'm a new to development I'm stuck well baby Steps are always needed to learn xD **I read in some documentation that i have to get ea...

Java and Its Role in Shaping Big Data and IoTs Future

Data is, beyond question, among the most pivotal factors when it comes to running a successful business. This rising popularity of the potential of data has served as the gateway to the adoption of Big Data. While it throws open the window to use...

Encryption and Decryption Code Transposition Algorithm in JAVA

I need to make some simple edits on trans-position encryption and decryption code, anyone interested please say

Accounting for Unaccounted Time Spent Serving a Request in JAVA

We have an API which returns xml results based on queries, the server is running Tomcat 7.0.53. I've been trying to determine how much time is spent processing and serving the request, and there is a significant amount of time (104ms, on aver...

How to Solve Diamond Interface Inheritance Problem in JAVA?

Hello. I'm trying to solve the following problem. I have 4 interfaces that are in a diamond shape and 2 classes. The requirements is to make the method calls work, while keeping f1 as the interface of x. Can you guys give me a hand? ...

Top 7 New Tools that Every Java Developer Should Know Today

Platform independence! It’s one the major reasons of the ever popularity of the Java language. It’s no wonder that organizations of all sizes and types are integrating it into their processes, not to mention the fact that Android is r...

How to start implementing a project ?

Hi, I'm senior computer information systems student, I'm trying to enhance my programming skills in OOP and data structures. I've created a simple application for each algorithm I've learned it's theory in the college such a...

How to Fix Java Code for Developing Product Calculator?

Write a program requesting a number (n), then ask n numbers more and print their product (use "for"!). The requested "n" number must be integer and positive. (The multiplied numbers must not be positive!)   The resu...

How to Change Array List to Integer or Double in JAVA Program

Hi   How can I change an array list to integer or double?   this is my code and i want show answer like a number and i use it not just print it...   import java.util.*; public class JavaApplication28 { p...

How to Instantiate JAVA Interface if Implementation is not Available?

If I have the interface accessible from all modules, but implementation cannot be accessible, how can I instantiate this from other modules?   If I have 3 modules, one module is accessible to all which has my interface, and the other 2...

How to Fix Null Pointer Exception When calling Implementation Via Interface from Another Module

When I try to call an implementation from another module via interface, I get null pointer exception   I need help! I get nullpointer exception, after deployment. I have an interface AirlineClient in 'com.airline.model.hook...

How to Create Response in Controller Class for Success & Internal Server Error

I want to code for success and internal server error response message in my controller class. I need format of code. Please anyone please help me I'm using springs. The message should be like this:      ...

Create a Delete Method for API : Error Method Map Undefined

@DeleteMapping("/term/{id}") public ResponseEntity <?> deleteTerm (@PathVariable(value="id")Long termId) { return ((Object) termService.findById(Id)).map(term -> { termService.delete(term); return Resp...

How can I Control the Cache for a Subpage?

I am starting on web-security and I have to control the cache on the portal, this portal has many urls. I understand that I need to set the header with this: response.setHeader("Cache-Control","no-cache,no-store,must-revalid...

How to Call a Class (with parameters) into Another Class in Android

Android Studio:   Hi everyone. How's it going? I'm having trouble with calling the Matrix class into the Main Activity. Basically, when the lock button is pressed, the matrix class should run/be active. I'm not sur...

How to Call Parametrized Method from LibraryCollection Class to Main Class

Hi Everybody!!  I am working on library management system project. Below is my LibraryCollection class. I would like to call my checkOutMaterial() method in the main class.  I need help on how to call the method.  Any help wo...

How to Implement Java Concurrency Code

Java!! Concurrency Code   You have been given a simple API to buy and print postage. Write a program that submits each incoming order to the API and then prints the shipping label.   Unfortunately each call to the shippin...

How to Compare Two Text Files in Java Programming Application

How can I Compare Two Text Files each line with all line in other file separated by two colons in java programming. Text file content should like this: 1.txt : accountsservice :: 0.6.40-2ubuntu11.3 :: None :: amd64 :: None 2.txt : cron...

Unhandled exception type XmppStringprepException

import org.jivesoftware.smack.tcp.XMPPTCPConnection; import org.jivesoftware.smack.tcp.XMPPTCPConnectionConfiguration; import org.jxmpp.jid.DomainBareJid; import org.jxmpp.jid.EntityBareJid; import org.jxmpp.jid.Jid; import org.jxmpp.jid.i...

How to Implement Callback in Android to Communicate Between Classes & Fragments

Callback is a way to inform a class synchronous/ asynchronous when an event occurs. A simple way to create a generic callback is to use interface with a method in which JSON is passed.     So, In this tutorial, I will guide...

How to Detect Network Connectivity Using Observer in Android Device

If you want to check whether your device connected to Internet or not OR when it turn on/off then adding the observer is the best way. You have to add the observer in activity to check connection is on or off.     Let's...

Why my Andriod app crashes on some devices when clicked on button?

I just compiled an andriod app and its working fine via emulator and also tried using my device 7.0 but after trying to use the app on andriod 4.4 it crashed after clicking on a particular button..I have testes on firebase lab to get errors..test...

Where to Place Audio Files to Get Rid of Not Found Exception Error in JAVA Program?

  I am working on a game in java and I have a class that reads an audio file as InputStream and then plays that file through AudioPlayer. I keep getting a file not found exception. I have tried placing the audi...

How to Implement Room Database in Android using RxJava2?

The Room is basically an easier implementation of SQLite database and a part of Android Architecture components. We know that SQLite uses SQLite open helper class to manage SQLite database but Room provides migration by removing this implement...

How to Disable (delete) Permissions From App

Hi i want to disable (delete) these permissions from my app <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.INTERNET" /> <uses-permissi...

How to Solve Array Problem in Java?

Monk was surprised to see a new game called, "Conversion Game". In this game, two arrays of N integers A1,A2...AN and B1,B2...BN are playing against each other and Array A wants to convert itself in Ar...

Big View Notification - How to Apply Expanded Layout to Android Notification

There are two types of visual style which appear on the Notification, normal view and big view. So, here in this tutorial, we will see how to Apply Expanded Layout to Android Notification. Regarding Nig View Notification, you should aware tha...

How to write a function that looks up values from a table within a range?

In the database I have a table for Users, and one table that is used as lookup. it holds scores and values.  i.e 10 5 15 6 20 7 After form submission, on the Users table a value like 12 is persisted. What I need is, a function to g...

How to change gridView child background at given position in android from another activity?

I actually want to change particular background of grid view from another activity at user given position. But when i go to activity which contains grid view , add call gridView.getChildAt(position) i got an error .getGetChildAt() call on null ob...

Converting Java Apps to JavaScript Using CheerpJ

If you want to convert Java application into JavaScript, CheerpJ might be the best tool to do so. CheerpJ melds Java and Web development. It can convert Java applications or libraries into JavaScript and here comes the best part, to do so you don...

How to capture image from front camera in backend on button click using phonegap?

I Want to learn about how to capture image on login button click from the front camera of smartphone without knowing user and display the pic on the next page. For development I am currently using PhoneGap. Please help.

Show large resultset from database into jtable with scroll pagination in java swing

Hello all, I am very new to java, so please ignore if you think this question is stupid. A task has been assigned to me in which I have to extract data from h2 database table with **more than 1 crore rows (SAD) from one table.** And finally show...

How do you know whether to make a class, a subclass, an abstract class, or an interface?

I usually write code as I go along, but I noticed this takes more time in the long run especially when I lose track of what codes does what where, but I wanted to start planning my code by making UML class diagrams and mockups. However, like t...

Help with java defensive programming technique

I have a the following four classes..  FTPApplication- Models FTP commands in a modular, extendible way. This abstract class provides several methods used by both the client and server. ServerSession- Models an FTP session with a client...

Json textview to Json viewlist

public class ExistingCSheet extends AppCompatActivity { private TextView listing; String[] items; ListView lv; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanc...

How to Allow 2 Users One at a Time to Place Their Ships on a Board

Please check the code below and provide a solution for this:   package Gui; import java.util.Scanner; public class Board {     public static void main(String[] args) {         // TODO Auto-genera...

Design a registration.jsp page with input for user registration details

Design a registration.jsp page with input for user registration details like firstname, lastname, choose username, choose password, confirm password. After submitting this details, display the details onto the display.jsp page using struts

String-Print a string character then extract user entered letter match with that word and append it as different word

Problem- Its not entering the If loop in the code snippet, couldn't get what's wrong in this logic.   /* * To change this license header, choose License Headers in Project Properties. * To change this template file, ch...
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