String selection and assigning

Question

String a="aaa";
String b="bbb";
String c="ccc";
String d="ddd";

String p,q,r,s;

How can I assign values to p,q,r,s randomly from a,b,c,d?

Like p should have value from a,b,c,d and similarly for q,r,s

But the value should not repeat.

Welcome to SO. See @BalusC's answer from here: http://stackoverflow.com/questions/4702036/take-n-random-elements-from-a-liste. Also, it helps to do a search (here or on Google), before posting new questions. — Perception, Feb 11 '12 at 12:47

score 3 · Accepted Answer · answered Feb 11 '12 at 12:46

The easiest way to do it is probably to just put all the strings in a array (or list, or similar), shuffle the list and assign the first value in the shuffled array to p, the second to q, etc.

Here's an example of how to do this:

String[] strings = new String[] {
    "aaa", "bbb", "ccc", "ddd"
};

Collections.shuffle(Arrays.asList(strings));

String p = strings[0],
       q = strings[1],
       r = strings[2],
       s = strings[3];

score 2 · Answer 2 · answered Feb 11 '12 at 12:46

2

Create an array of a,b,c,d, and use a random 0~3 index to get the value.

answered Feb 11 '12 at 12:46

xdazz

158,678
38
247
274

score 0 · Answer 3 · answered Feb 11 '12 at 12:53

0

Add your Strings to a List<String> and then use java.util.Random class's nextInt(sizeOfList) method.

answered Feb 11 '12 at 12:53

Kuldeep Jain

8,409
8
48
73

String selection and assigning

3 Answers3