Posts by Gabriel Silva • 169 points
19 posts
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viewsQ: How do I edit a list of objects within a txt file?
I am doing a job in college for the discipline of OOP in java. In this way it was requested a crud operating files ". txt". I’m having a hard time manipulating the list I put in there. I can provide…
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answer235
viewsQ: I’m having an error in stored Procedure , probably within IF
To procedure must insert a client with at least 10 characters in name, Uf(Federative unit) with 2 characters and monthly reindeer with more than 500.00. Follow the query: DELIMITER $$ CREATE…
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viewsQ: Error when pushing to Github
I need to perform a push of files from my machine to Github but I’m not getting. I leave below some lines of code that I used in cmd trying to accomplish the commit, push, git init and everything…
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answers43
viewsQ: I got an error trying to create my matrix. Error: Warning Passing argument 1 of " " from incompatible Pointer type
I’m trying to create a code with a 3x3 matrix. However, I haven’t touched C for a while and I needed to review this content. I believe that the failure of the program is some question related to…
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answer39
viewsQ: I cannot create a new client on the server
Good evening, I’m a student of JS, html. I’m trying to learn how I can make an inclusion on the server ( I’m sorry if I describe with the incorrect word or term any step). I have to create a website…
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answer32
viewsQ: I can’t change the background color of my table numbers
I am trying to create a table with 100 numbers that will carry out draws according to the amount of numbers I want. However I need to each draw be able to visualize the number that was drawn and for…
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answer203
viewsQ: JSON error. My code cannot read JSON
I should create a page that shows a catalog of albums provided in xml. Then I have to transform the catalog.xml into JSON and show it in a table with artist and title. The problem is that my code…
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viewsQ: Error when executing the program hangs. Circular list(Solved) However I’m still in doubt
I have an error that only appears during the execution of the program. I would like someone who has knowledge of why this occurs, can explain to me. #include<stdio.h> #include<stdlib.h>…
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viewsQ: Script error to make a market list
The problem: When running on Google Chrome, the browser accuses having an error in the function lerLista although I have not managed to solve I believe that it is a problem the capture of the field…
javascriptasked Gabriel Silva 169 -
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answer212
viewsQ: How can I do a <select> validation in Javascript to force one of the options to be checked?
Yes, I saw that it has many "SIMILAR" questions but none of the answers given seemed to work. That’s why I came here to show my doubt. Although I have tested many codes. I believe the error is…
javascriptasked Gabriel Silva 169 -
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answers791
viewsQ: How can I print a variable from within the Javascript script?
The doubt is exactly how I can "print" a value from within my Javascript code so I can track if the variable has the correct value. I’m learning Javascript in college and was writing a paper that…
javascriptasked Gabriel Silva 169 -
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viewsQ: I’m trying to write a JS code to test the value of "Very Good" to "Bad " in IQA(Air Quality Index)
The task consists of the following, measuring whether the IQA is good or bad. IQA is a measure of the Air Quality Index. This measurement is done in conjunction with the measurement of two gases:…
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viewsQ: Problems displaying an array of functionalities in a Main class
I have 3 classes involved in this error: Testaempresa, Empresa,. My idea is to create an array of employees within Company and print in Testaempresa. For this I made within Funcio a method called…
javaasked Gabriel Silva 169 -
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answer47
viewsQ: I cannot compile my program because I have an error that says "Nullpointerexception"
I’m trying to build a Java project according to the concepts of object-oriented programming. However the compiler(ECLIPSE) accuses an error in the line of my liigar function. It says it has a…
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answer38
viewsQ: The queue code has an error in the search. How can I fix it?
I use the search twice in my code and it is a binary search in order to respect the criteria imposed in the header of this exercise. But the doubt lies in the binary search module because the…
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viewsQ: Why does (a < x < b) produce a result other than ((a < x) and (x < b))?
List all fields of all products whose cost plus 30% is greater than 8 and less than 10. That was my answer: SELECT * FROM `produtos` WHERE (8 < (pcusto*1.3) < 10); This is the feedback: SELECT…
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viewsA: How to use an external (ready) CSS style in HTML code?
The problem was solved with a change in the folders where the html code is. With this adjustment I could decrease the CSS path by 1x and so I could use it correctly in my code. From now on, thank…
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viewsQ: How to use an external (ready) CSS style in HTML code?
My question is this, I have a code HTML which I am using to learn in my course’s classes. So after my course’s CSS wanted to use one of the templates used during the explanation in my code. I put…
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answer276
viewsQ: Help in Mysql Phpmyadmin How to insert a table in a database?
How do I insert a table into a abanco ? I am a beginner mysql user and beginner in the world of programming. I made the following code: INSERT INTO banco1( CREATE TABLE Cliente ( id INT NOT NULL…