I have an OOP-related question, when should I use return in a method?!
Since when I pass an object to the method and the modifications are made to it, I do not need to return, example below:
Method call:
this.ordenaArquivo(this.ar...
I'm trying to generate a Java file crawler with the help of Lucene.
Follow this guide to iMasters and tried to adapt to version 4.7.0 , the problem is that at some point the search is not working.
I checked the index file and both the infor...
I would like to create a button that causes a input to appear for sending images.
This button can be used multiple times. When the user clicks the submit button, those images must be sent to the server without reloading the page....
I have a list with two or more Strings:
[Panel, Control]
Now comes the problem:
for (int i = 0; i < lista.size(); i++){
String linha = "";
while ((linha = leitura.readLine()) != null){
if (linha.contaens(lista.get(i)))...
According to the definition of this site :
CARDINALITY
It is the maximum and minimum number of occurrences of an entity that are
associated with the occurrences of another entity that participates in the
relationship. That is...
I have a Java desktop application w / DB MySQL running on 100 company branches for over 6 years. Today at the head office we need some information from the branch database. I'm developing a web service Rest, to perform this integration.
The f...
Hello I have a question in my college project, in scope it says like this:
"Users and passwords can be stored in the database, using the bank's own encryption."
Is the crypto in both default by MD5?
In that case I need to use the MD5 crypto...
I'm generating a bar code using Barbecue, but where I'm going to print the code is rather low or the paper is 8 cm wide and the information I have to generate the barcode has 44 digits.
I've tried to scale my generated code but I can not....
Is it possible to create a Button through code rather than design mode (xml)?
For example: I'll create a screen with a EditText , type a number, and click a Button .
After this, x (number entered) EditText is cr...
I'm doing a job and I created a page that simulates a profile, so when a user is logged in, he can enter that page and take a picture to be saved there. So as soon as the photo is taken the imageView receives it, after the user leaves the profil...