CODEWITHSUNDEEP
androidarraysstringrandom
Sapp
Sapp

Reputation: 1803

Randomly displaying strings -

I have a set of strings labeled st1, st2, st3, etc...until st9. I want to have a method that randomly shows one of those strings based off a randomly generated number...could someone please show me how to do this?

Thanks!

Upvotes: 0

Views: 679

Answers (3)

Nick H
Nick H

Reputation: 11535

If you have a set of strings defined in strings.xml then it will look more like this:

import java.util.Random

Random rand = new Random();

int[] myarray = new int[]{
   R.strings.my_string_1,
   R.strings.my_string_2,
   R.strings.my_string_3,
   R.strings.my_string_4
};
int myrand = rand.nextInt(myarray.length-1);
System.out.println(getText(myarray[myrand]));

This assumes that you're doing this in an Activity where the getText method is available.

Upvotes: 0

OmnipotentEntity
OmnipotentEntity

Reputation: 17131

You'll want to place them in an array and access the member of the array that your generated random number tells you to.

Android generally means java so:

import java.util.Random

Random rand = new Random();


String[] myarray = new String[]{st1, st2, st3, st4, st5, st6, st7, st8, st9};
int myrand = rand.nextInt(8);
System.out.println(myarray[myrand]);

Forgive me any minor syntax errors, it's been a while since I've programmed in Java.

Upvotes: 3

jcomeau_ictx
jcomeau_ictx

Reputation: 38432

put your strings into an array, pick a random integer between zero and the length of the string array, and use the number to index into the array.

Upvotes: 1

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