Questions tagged as 'java'

Tagged questions
1
answer

priority queue java

I have a problem, I am doing a project, it consists of entering data of a person (name, age and place (distance)) when giving the data for example: Person 1: so-and-so, 32 years old, 34 kilometers Person 2: Jorge, 54 years old, 44 kilomete...
asked by 04.11.2017 / 05:36
0
answers

Problem to put data from a SQLite database to a ListView with Java and android Studio

Sorry I have a problem wanting to add data to a database, actually the data seems to be entered but I can not show them in a list View, I would like to know what the problem is because the console does not throw any problems And neither mistakes...
asked by 06.11.2017 / 18:07
2
answers

how to create a custom constructor in Java?

In a class called Coins, the following members are present: to. Two private string variables called country and currency, the value of the variables it must be typed from the keyboard. The code to request this value must write it in the class of...
asked by 05.11.2017 / 00:05
0
answers

How to generate a dually linked circular list automatically

Good, I have a question as I generate a list doubly linked circulate automatically (give me some data and the number of nodes that I must create). I have the code to enter All, but I do not think this one will help me public void insertarNo...
asked by 06.11.2017 / 04:39
3
answers

Problem with a while loop

Good, given the following code, it resumes that although you write as high -1 and as width 30, you still execute code and I would leave, in this example, the last thing. I want to know how to prohibit the minor that 1 and the greater than 20...
asked by 03.11.2017 / 18:33
0
answers

Use the gmail api with java

I'm doing a spring project that allows me to use the gmail api to send and read emails from my app. On my local PC when I use the app for the first time, it redirects me to the google page and I select the account with which I want to connect, t...
asked by 03.11.2017 / 18:50
1
answer

Save data from a JCheckBox in SQL Server?

I have the following JCheckBox: and I need to collect the data of each of them to insert in the table with a "yes" if they select it, and "null" if they did not select it, someone has an idea how can I do that ???? Here I leave the c...
asked by 30.10.2017 / 02:30
1
answer

How to get the speed of the processor and the rest of the hardware information?

I already use the build class but it does not give me the information I need, just like the HardwarePropertiesManager class. It gives me some other information that if it served me as the OS version, etc. but the main thing I need is the amount...
asked by 30.10.2017 / 02:44
1
answer

Error: Variable auxi is already defined in method main (String [])

I continue with my programming studies and I have generated a problem in my code, it tells me that the auxi variable is already defined in one method, but the intent use to invoke the arrayList, the funny thing is that I do not throw that er...
asked by 31.10.2017 / 02:04
1
answer

Multi-table with Criteria

Guys I need an example of how to make a multitask in criteria, even though I do not find, I leave a query as an example, I only look for an example not a solution to my query, but the query is that way: SELECT * FROM PER_TIPO_REL_SERV TR, PER_...
asked by 30.10.2017 / 10:24