Posts by Luan R • 369 points
7 posts
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2
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answer88
viewsQ: Mysql, acess denied for user, using password: no
When creating a new project in Rails using mysql rails new exemplo -d mysql and then rake db:create I have the following error Acess denied for user 'root@localhost' (using password: NO) Please…
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0
votes1
answer88
viewsA: Mysql, acess denied for user, using password: no
The problem was solved by placing user and password of the database in the database.yml file, in the config folder of my project test: sudo gedit /var/www/teste/config/database.yml…
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1
votes1
answer606
viewsQ: Selecting data in Java Curl
I would like to know how to select data using gson library. BufferedReader reader = null; URL endereco = new…
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1
votes1
answer2615
viewsQ: Adjust Image Size with Java Imagery
I would like to resize an image to be shown in my jLabel. Here’s my code: BufferedImage imagem; Icon novaImg; try { String newPath = "file:///" + aleat(); // carrega imagem aleatória imagem =…
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6
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answers1880
viewsQ: Variables with Bigdecimal
I am trying to add a value in a variable of type Bigdecimal, however independent of the calculation it results in 0. Sample code: BigDecimal valorTotal = new BigDecimal(0); public void…
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7
votes2
answers338
viewsQ: Handle price in stock control
I’m making a stock control system in Java and came across a question about how to store prices. I’ve been reading that double and float are not good to store this kind of data and about a data loss…
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9
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answers1950
viewsQ: Close connection to database c#
I am making a login system and get the message of sql Exception when I try to create new account in the database: MySqlCommand usuaExiste = new MySqlCommand( "SELECT * FROM contas WHERE nome =…