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random selection.

I've been looking at the rnadom function but cant figure it out. I have three strings lets say:

String s1 = "something1";

String s2 = "something2";

String s3 = "something3";

well i cant figure out how i could randomly select one. Random(); doesnt look like it would work. And thats the only random way. I'm use to php coding were u do Random(1, 5) and it would select a random value between the two. I could get it in php but cant excatly understand the java random procedyre. Links to anything like this or a tutorial on this or a code snipplet o anything of help would be appricated.

[618 byte] By [bronze-starDukes] at [2007-11-26 12:12:32]

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# 1

Put the Strings in a List. Shuffle the list. Choose the first element.Alternatively. Put the Strings in an array. Choose a random number in the range of the array.

silverstar at 2007-7-7 14:12:33 >

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# 2

wold that be done with the random function?

bronzestar at 2007-7-7 14:12:33 >

# 3

Put the strings in an array instead. Generate a random number with a range relative to the number of elements in the array. Then use that random number to index into the array.Edit:I knew someone would beat me to it.Message was edited by: warnerja

platinumsta at 2007-7-7 14:12:33 >

# 4

String[] strings = new String[3]strings[0] = s1;//add the rest...String random = strings[(int)(Math.random()*2)];something like thatadd them to an

silverstar at 2007-7-7 14:12:33 >

# 5

thanks mkoryak ill try that.

bronzestar at 2007-7-7 14:12:33 >

# 6

*sigh*

silverstar at 2007-7-7 14:12:33 >

# 7

> Edit:> I knew someone would beat me to it.> That's nothing my reply 1 got beat by reply 4 apparently.

silverstar at 2007-7-7 14:12:33 >

# 8

no all were helpfull, but myoak gave me an example.

bronzestar at 2007-7-7 14:12:33 >

# 9

while you are at trying it, try to give me the dukesto everyone else who replied to this thread i have this to say:SUCKAS!

silverstar at 2007-7-7 14:12:33 >

# 10

> > String[] strings = new String[3]

> strings[0] = s1;

> //add the rest

> ...

> String random = strings[(int)(Math.random()*2)];

> something like that

> add them to an array

Don't use Math.random, use java.util.Random

http://java.sun.com/docs/books/effective/excursion-random.html

goldstar at 2007-7-7 14:12:33 >

# 11

> while you are at trying it, try to give me the dukes

> to everyone else who replied to this thread i have

> this to say:

> SUCKAS!

Except that your example uses a different class and is more complicated than needs be and it is brittle.

This is better.

String[] strings = new String[3]

strings[0] = s1;

//add the rest

...

Random r = new Random();

String random = strings[r.nextInt(strings.length)];

silverstar at 2007-7-7 14:12:33 >

# 12

I agree that your example is better, but I WROTE MINE FASTER SUCKA!!!ok, im done. sorry i had a long day

silverstar at 2007-7-7 14:12:33 >

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random selection.

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