All Questions

2
answers

how does auto increment work in mysql?

I want to know how to add a column so that it is a primary key and auto-increment, but that the value is higher, eg:    ID: 3509. and not just 1,2,3,4 ... etc.     
asked on 01.11.2017 / 19:20
1
answer

Calculation via Javascript

I'm having trouble performing a price calculation for multiple products on the Front End. I have array of products and I need to add them through a function. Example: produto[0] = {produto:'Camisa',preco:'45,90'}; produto[0] = {pr...
asked on 07.11.2017 / 20:53
1
answer

Rounded border on Chrome buttons iOS

I recently updated my Macbook here and now all the buttons on my site are with the rounded border. I found it to be some CSS bug, but no, getting into my Windows computer is normal. Can anyone tell me what's going on?     
asked on 16.11.2017 / 19:14
1
answer

RegEx in Delphi

A help with regular expressions in Delphi 10 please. I need to check the following in string : Size ranging from a minimum of 6 characters to a maximum of 20 characters; Type of characters: a-z or A-Z or 0-9 or _ (underline character...
asked on 04.12.2017 / 15:25
3
answers

Retrieve input file name and assign input text

I have the following code with a% text_type% and a file type. See: <form action="#" method="post" enctype="multipart/form-data"> Name file: <input type="text" name="name" id="name"><br/><br/> <inpu...
asked on 06.06.2017 / 21:20
2
answers

Why is JSON not considered a markup language? And why is XML?

I was researching the differences between JSON and XML so I read that XML is a markup language but I did not read anything about JSON.     
asked on 01.06.2017 / 23:14
1
answer

How to group COUNTs for different queries in one?

I need to do a SQL query to count indications, I have the following querys : SELECT 'FACEBOOK', COUNT(id) FROM 'clientes' where indicacao like '%face%' SELECT 'Instagram', COUNT(id) FROM 'clientes' where indicacao like '%insta%' SELECT 'go...
asked on 24.11.2017 / 15:41
1
answer

Difference hashmap and arraylist

Could anyone explain the difference between HashMap and ArrayList ?     
asked on 05.06.2017 / 20:30
1
answer

this inside a constructor, what does it do? [duplicate]

Good, can someone tell me what this this does? public Tempo (){ this(0,0,0); } public Tempo (int h){ this(h,0,0); } public Tempo ( int h,int m){ this (h,m,0); } public Tempo (int h,int m , int s){ SetTime(h,m,s); }     
asked on 10.06.2017 / 12:04
2
answers

$ _GET get value from ID or name?

Does $_GET , or even $_POST , get ID values from input or name ? <form action="#" method="get" name="meuForm"> <input id="nome" name="nome" type="text" value="Teste"> <input id="email" name="email" typ...
asked on 03.07.2017 / 18:45