Questions tagged as 'java'

Tagged questions
1
answer

Read file .txt (With accents) in java

I'm trying to read a file with .txt extension to copy the words to another file. The problem is that if the original file has accents or special characters, the program does not work. public static void main(String[] args) { St...
asked by 25.10.2017 / 10:07
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Variable within FOR - Java

I get 0 in the variables contApproved and contSuspendido at the end of the for. How can I do to obtain the result I accumulate in the for? import java.util.Scanner; class NotaDeClase{ private double nota; private static Scanner...
asked by 01.11.2017 / 16:30
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Generate getters and setters in ECLIPSE

It turns out that I have to work with this IDE due to force majeure and I have been trying to solve this error for a while, I'm sure it's silly but in net beans I never had any problems, thanks in advance     
asked by 24.02.2018 / 22:23
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how can I resolve an error ... @ 15db9742

I'm practicing and I get an error    interpolacion.interpolacion@15db9742 package interpolacion; public class interpolacion { public static void Interpo(double X, float[] rango_X, float[] rango_Y ){ int Leng , xp1; f...
asked by 10.07.2017 / 02:52
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how do I get out of the if and return to the beginning of the loop?

enters the while loop, if I enter the correct value which in this case is 3, leaves the loop, but if not, I enter the if, and I do not leave there even if I enter the 3 again, how do I get out of the if and return to the beginning of the while?...
asked by 22.07.2017 / 04:17
4
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How to add an element to ArrayList

Hello Good afternoon, I went because I have a question if you could help me. I want to create a ArrayList of a class, have a dynamic array of objects of a class, I'm doing it in the following way: ArrayList<Persona> pruebas =...
asked by 23.02.2018 / 17:42
2
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Maximize Frame

I'm doing a game in java, but when I run the Frames I get a small window and I maximize it and it maximizes me, but the idea is to get it out the size it is, I edit in the properties of the Frame and I maximize the size and it does not give me...
asked by 20.07.2017 / 04:03
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Problems updating database with java, Field does not have a default value

Good morning, I have a java program that updates data or inserts data into a table within a database. The program worked perfectly until today, in the table I had created by default through the java program, I added new columns to update them...
asked by 24.04.2017 / 23:05
3
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Validate a date received from html5 Date in java and send it to Mysql

I have this code that works very well, it receives input parameters from a DOM and sends them through ajax to an endpoint that sends them to the DB at the same time. the theme comes here, I want to validate two dates, one for planes and one for...
asked by 13.04.2017 / 15:04
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How to limit the number of characters in a JTextField in Java? [closed]

I would like to limit the number of characters that are entered in a JTextField in java     
asked by 19.04.2017 / 03:02