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ARRAYLIST
Hi,
I need to create a method which selects a random word from my array list at random...at the moment it prints out what is in the array list...
public class Bank { public static void main(String[] args) { String[] words = {"Garage", "Swindon", "Newspaper", "Chocoloate"}; List<String> wordList = Arrays.asList(words); for (String e : wordList) { System.out.println(e); } }
Re: ARRAYLIST
You need to actually generate the random number and only print out the specific element.
To generate a random number:
Random Class
To print out a specific element of an array list:
System.out.println(myArrayList.get(index));
Re: ARRAYLIST
It comes up with cannot find symbol variable index?
Re: ARRAYLIST
You have to declare the variable and set it with the result you get from using the Random class.
Re: ARRAYLIST
Further to helloworld922's contribution,
Assuming 'generator' is an instance of
java.util.Random
int index = generator.nextInt( n ), where 'n' is the length of your arraylist.
Then print out the arraylist element at the position, 'index'.
I hope this helps.
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