Java Random String getRandomStringOfLetters(int length)

Description

Generates a random string of characters.

License

Open Source License

Declaration

public static String getRandomStringOfLetters(int length) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.Random;

public class Main {
    private static final Random _RANDOM = new Random();

    /**// ww w . j ava2 s  .co m
     * Generates a random string of characters.
     */
    public static String getRandomStringOfLetters(int length) {
        StringBuilder buf = new StringBuilder();
        for (int i = 0; i < length; i++)
            buf.append(nextLetter());
        return buf.toString();
    }

    /**
     * Generates a random letter.
     */
    public static char nextLetter() {
        return (char) (nextInt(26) + 65);
    }

    /**
     * Generates a random integer between 0 (inclusive) and the requested bound (exclusive).
     */
    public static int nextInt(int bound) {
        return _RANDOM.nextInt(bound);
    }
}

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