Java Random String getRandomString(int strLength)

Description

get Random String

License

Apache License

Declaration

public static String getRandomString(int strLength) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.util.Random;

public class Main {

    public static String getRandomString(int strLength) {
        StringBuffer buffer = new StringBuffer();
        Random random = new Random();

        for (int i = 0; i < strLength; ++i) {
            int charInt;
            char c;
            if (random.nextBoolean()) {
                charInt = 48 + random.nextInt(10);
                c = (char) charInt;
                buffer.append(c);//from  w  w  w. j  a v a2 s  .  c  om
            } else {
                if (random.nextBoolean()) {
                    charInt = 65 + random.nextInt(26);
                } else {
                    charInt = 97 + random.nextInt(26);
                }

                if (charInt == 79) {
                    charInt = 111;
                }

                c = (char) charInt;
                buffer.append(c);
            }
        }

        return buffer.toString();
    }
}

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8. getRandomString(Random rnd, int minLength, int maxLength)
9. getRandomString(String paramString, int paramLength)