Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.Random;

public class Main {
    public static String getRandomKey(int length) {
        String str = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
        Random random = new Random();
        StringBuffer sb = new StringBuffer();

        for (int i = 0; i < length; ++i) {
            int number = random.nextInt(str.length() - 1);//[0,62)

            sb.append(str.charAt(number));
        }
        return sb.toString();
    }
}