Questions tagged as 'java'

Tagged questions
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Convert number of the day of the week into String of the day

I need to convert the number that corresponds to the day of the week into the String of the day into Java . Ex: 0 => Monday 1 => Tuesday     
asked by 31.08.2017 / 22:09
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How to extract String from a larger string separated by "/"

I have a string and I want to extract a substring see in my code: String link = "lojas/RJ/Macaé/Loja Modelo/pedidos_ativos/03-03-2018-8773"; String uf = link.substring(link.lastIndexOf("/",0),link.lastIndexOf("/",1)); String cidade =l...
asked by 20.03.2018 / 00:12
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Validation of log-in by vector (array) .java

I'm studying object-oriented vectors and I've decided to do some programming to get things done. It consists of registering n vectors that will be bank accounts with name, password, account and balance . Using only the console as an intera...
asked by 26.12.2018 / 13:56
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Understanding exercise of the book Use the Java Head

I did not understand the operation of the code below, maybe later in the book have better explanations or let something even pass in the review. I will detail the points in the code that I have doubts about. package qb5; public cla...
asked by 04.09.2018 / 02:54
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How to store split strings in an ArrayList?

I'm doing a job where I need to save the information for a checking account, I need to read the information in a file (text) and split this information to divide it into account code , name and balance . Also, I need to save this information...
asked by 31.03.2017 / 16:09
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How do I set a list of images in the listview - imageview from the page url?

The problem is that whenever I have a new image on the page specify I have to update the application with the new image URL set on the page.     
asked by 28.09.2017 / 11:54
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How do I adjust my application to the screen size of multiple devices? [duplicate]

Good afternoon, I'm developing an application in Android Studio and it fits well in my Motorola Moto X 2nd Generation. But in my Samsung Galaxy Note 3, Motorola Moto E and Motorola Moto G, it gets all messy, it's a mess! I would like to know h...
asked by 23.05.2015 / 20:21
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Android - How to export the database into a csv file?

I have an application that collects and stores information in a database, and the user can query that data within the application itself. However, I would like to insert a button to export the database to a .csv file. Has anyone done o...
asked by 13.04.2015 / 21:02
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Primeface uploadFile + graphicImage: Upload image and display without refresh

I'm starting to program the jsf + primefaces . A long time ago I worked with JSP (java 1.4) and I'm kind of lost. I want to upload an image and have it displayed right below it. images.xhtml <?xml version="1.0" encoding="UTF-8"?&...
asked by 10.03.2015 / 15:59
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Error consuming webservice soap on android

I have a web service whose wsdl is this : which rows the following if executed in the browser: <!-- Published by JAX-WS RI at http://jax-ws.dev.java.net. RI's version is Metro/2.2.0-1 (tags/2.2.0u1-7139; 2012-06-02T10:55:19+0000) JAXWS...
asked by 22.05.2015 / 17:15