CODEWITHSUNDEEP
javastringrandom
Derek Davis
Derek Davis

Reputation: 23

how to generate random strings?

Here is a piece of code that I am working with, however, I want to generate random responses with regards to the strings that I have set up. How best to approach this? Perhaps just to clarify, I need my "Hello", "Good day", "bye", "farewell" to be output randomly as opposed to the order in which they are listed. 

public void run() {
    String importantInfo[] = {
          "Hello",
          "Good day",
          "bye",
          "farewell"
    };

    Random random = new Random();

    for (int i = 0; i < importantInfo.length; i++) {
        drop.put(importantInfo[i]);
        try {
            Thread.sleep(random.nextInt(5000));
        } catch (InterruptedException e) {}
    }
    drop.put("DONE");
}

Upvotes: 2

Views: 796

Answers (2)

Scott
Scott

Reputation: 21

Go get apache-commons for RandomUtils and call nextInt(4).

There are also random string , long, and float methods available.

Upvotes: 2

copeg
copeg

Reputation: 8348

Presuming "strings I have set up" refers to the importantInfo variable, and random response is a random item from that array: select a random number from the Random object and use this value as the index to your string array. 

String randomString = importantInfo[random.nextInt(importantInfo.length)];

Upvotes: 7

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