All Questions

3
answers

Help with ArrayList in Java

Schedule a list using the ArrayList class The list must contain at least 8 attributes. So far I have the Class already created with its attributes, empty constructor, constructors, getter and setter and finally toString. My class is called Ca...
asked on 13.11.2018 / 18:37
2
answers

SQL MAX of multiple columns

I have this table: ID NUM TIPO CANTIDAD FECHA 451 225 36 60000 2018-05-16 452 225 37 60000 2018-05-16 453 225 38 00001 2018-05-07 454 225 39 60000 2...
asked on 17.11.2018 / 19:56
1
answer

Segmentation fault in Assembler 8086 NASM SASM?

A program written in assembly language 8086 with SASM is throwing me an error of "Program received signal SIGSEGV, SEGMENTATION FAULT" when executing it I attach the code %include "io.inc" section .data vector db 1,2,3,4,5,6,7,8,1,2,3,4,5...
asked on 19.11.2018 / 10:46
2
answers

Warning: mysqli :: query (): Could not fetch mysqli

Show me this error:    "Warning: mysqli :: query (): Could not fetch mysqli in   C: \ xampp \ htdocs \ prac_01 \ html \ php \ table.php on line 28       Fatal error: Uncaught Error: Call to a member function fetch_assoc ()   on null in C: \...
asked on 19.11.2018 / 12:21
2
answers

Is it correct to mix variables int and double making casts?

Is it a bad practice that I perform in this program mixing variables / constants of type int with others of type double? Should I declare them all as double and not do as much cast? Thank you. #include <iostream> using std::cout; usi...
asked on 27.04.2016 / 18:11
2
answers

About DEFAULT CURRENT_TIMESTAMP!

Good afternoon everyone again, Guys now I'm fighting with default insert the date in a table of my mySql. Table Appointment. Of course, the client does not have to enter the date, but I am interested in knowing when the appointment request was e...
asked on 02.06.2016 / 19:25
2
answers

Create a board in Java

They let me do a project in Java that resembles the Minesweeper game, I have to make a board that has to take a square dimension, and also a character without uncovering and uncovered character, it has to look like the following: So far...
asked on 17.05.2016 / 22:26
2
answers

Open and close a plot within a while

I'm trying to plot a signal with Matplotlib and the plot is within while . What I want is that every time I go through the while a graph is opened and then either immediately or after a time that I can control it will close. I have...
asked on 22.04.2016 / 08:19
1
answer

Doubt with a MYSQL query

As the title says it is a doubt because I'm not sure it can be done, but hey, there it goes: Let's say that I make a join of two tables, one has ads (spots) and the other ad units, the query looks like this: SELECT Blocs.Numbloc, Spots.Nom...
asked on 27.04.2016 / 17:54
1
answer

How to remove a div without affecting a div equal jquery?

At the moment of doing click in a button add in jquery this generates a append with 4 inputs and two buttons, a button eliminates the row which works well, but there is another boton that must to be deleted alo...
asked on 27.11.2018 / 18:39