Java Password Generate generatePassword(int length)

Description

Generates a random password with the specified length.

License

Apache License

Parameter

Parameter	Description
length	password length

Return

the generated password

Declaration

public static String generatePassword(int length) 

Method Source Code

//package com.java2s;
/**/*from w ww  .  ja  va  2  s.c om*/
 * Copyright 2012 NetDigital Sweden AB
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*/

import java.util.Random;

public class Main {
    private static String pwdChars = "0123456789ABCDEFGHIJKLMNOPQRSTUVXYZabcdefghijklmnopqrstuvxyz!";

    /**
     * Generates a random password with the specified length. The generated password contains
     * characters from the following set [A-Za-z0-9!].
     * 
     * @param length password length
     * @return the generated password
     */
    public static String generatePassword(int length) {
        StringBuffer pwd = new StringBuffer();
        Random rnd = new Random();

        for (int i = 0; i < length; i++) {
            pwd.append(pwdChars.charAt(rnd.nextInt(pwdChars.length())));
        }

        return pwd.toString();
    }
}

Related

1. generatePassword()
2. generatePassword()
3. generatePassword()
4. generatePassword()
5. generatePassword(int lenght)
6. generatePassword(int length)
7. generatePassword(int length, boolean special)
8. generatePassword(int length, String combination)
9. generatePassword(int minLen, int maxLen, int noOfCAPSAlpha, int noOfDigits, int noOfSplChars)