Random Number Selection Help

Hello All,
I have a question about the random number generator. I am trying to create a random process that will select between two numbers, which happen to be doubles, either 0.5 or -0.5. Yes, I want the random the calculation to either add .5 or subtract .5. So far I can only get the random number to add by .5 and never subtract by -.5. Help please!
class RandomTrialSets
public static void main (String[]args)
Random myRandom = new Random();
double randomOne = myRandom.nextDouble() * 0 + .5;
double randomTrials;
for (randomTrials = 5; randomTrials !=10; randomTrials += RandomOne)
System.out.println("it took this many times to complete the trial" + randomTrials);
Edited by: s_cheplick12 on Dec 14, 2009 8:19 PM

sabre150 wrote:
s_cheplick12 wrote:
I will try out both of your suggestions and write back in a little bit if they work. I want to the program to randomly ADD .5 or SUBTRACT .5 to each trial. So you want my second solution or Enceph's solution.
I thought it would look something like this (but this does not work):
double randomOne = myRandom.nextDouble(-.5 || .5)An interesting syntax!Sabre,
I tried out using your two suggestions, and they did not work the way I wanted. I'll try the boolean suggestion mentioned above, and write back how that worked out.
double randomOne = myRandom.nextDouble(-.5 || .5)
I actually think that if Java did have the power to read code that way it would be great.

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