1

answer

I have the following scenario, I have a table and I need to make a select with an order by RAND (). But I'd like to put some conditions for example:
TABELA
ID | NOME | IDADE | GRUPO
Data
1 | Hiago | 20 | 1
2 | Igor | 15| 1
3 | Ana| 18...

asked by
21.11.2015 / 02:02

2

answers

I am trying to generate float values between -1 and 1 to test if they are within the defined limits in order to create a vector with the amount of data I want only that I am only able to generate% between 0 and 1 through the function f...

asked by
23.11.2018 / 10:01

4

answers

When using this function Math.floor((Math.random() * 10) + 1) I get a random number from 1 to 10. We assume that each number has a 10% chance so we have a 50% Odd or Even chance, but what if I wanted to manipulate those chances, so that t...

asked by
04.04.2017 / 20:26

2

answers

I can not return any number. Ex: If you use "minor 1500" and "greater 5000", it was to appear in this range if you did not enter while , only it is not returning anything.
public int aleatoriar(int maior, int menor) {
int retorno...

asked by
14.03.2015 / 20:03

2

answers

I'm studying the Java programming language and found an obstacle, by some chance I can not compile this code
import java.util.Random;
public class Random {
public static void main(String[] args){
Random num = new Random();...

asked by
18.07.2016 / 21:50

4

answers

How to generate a number float between two numbers?
Eg: A random number between -270.33 and -47.5.

asked by
13.05.2016 / 23:49

1

answer

When I studied pseudocode, I learned that when you call a function and create a variable, it only "exists" when I call that function, for example.
funcao teste():
x = 10
retorna x
In case, when I called my test function, it woul...

asked by
12.03.2018 / 00:11

2

answers

I was reading about random numbers not being so random and I saw one way out was to feed a seed with srand((unsigned)time(NULL) );
To test I generated a vector of 100,000 positions and ordered it, but it only has the number 32767...

asked by
09.09.2016 / 01:47

2

answers

Let's say I have an empty array of size 8.
int A[8];
And so I intend to populate it with random values whose I would have a function similar to rand();
However, I call rand() for each element of the array, so all eleme...

asked by
20.05.2015 / 00:42

3

answers

Well, initially I do not understand much of a list in C #, but I have a list of type int that will always have 4 elements that are: 1, 2, 3 e 4 , I'm assigning them with .Add , if someone knows another Give me a little help...

asked by
10.09.2015 / 06:20