[Commons lang3 topic] 003- randomstringutils topic

【commons-lang3 project 】003- RandomStringUtils project

〇、 Get ready

1、RandomStringUtils The main role

Provide and generate various Random string Method .

2、 Introduce dependencies

<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-lang3</artifactId>
    <version>3.12.0</version>
</dependency>

One 、 Random string

1、 Generates a random string of the specified length （ All character sets except alphanumeric ）

// 1、 Generates a random string of the specified length （ All character sets except alphanumeric ）
//  Select characters from all character sets , Excluding letters and numbers 
System.out.println(RandomStringUtils.random(5)); // 𥘿𦊿 Way 

2、 Generates a random string of the specified length （ Specify character set ）

// 2、 Generates a random string of the specified length （ Specify character set ）
//  grammar ：random(int count, boolean letters, boolean numbers)
// letters:  Alphabetic character set  numbers： Digital character set 
//  Random strings consist of letters and numbers 
System.out.println(RandomStringUtils.random(5, true, true)); // ny6Oh
//  Random strings consist of letters 
System.out.println(RandomStringUtils.random(5, true, false)); // edrYz
//  Random strings consist of numbers 
System.out.println(RandomStringUtils.random(5, false, true)); // edrYz
//  A random string consists of all character sets except alphanumeric （ Equate to random(int count)）
System.out.println(RandomStringUtils.random(5, false, false)); // ᷉줅𝥛뚣

3、 Generate a random string of the specified length from the specified character set array

// 3、 Generate a random string of the specified length from the specified character set array 
System.out.println(RandomStringUtils.random(5, 'A', 'B', '1', '2')); // 2B21B

4、 Generate a string of specified length from the specified character set

// 4、 Generate a string of specified length from the specified character set 
System.out.println(RandomStringUtils.random(5, "bkjfsdhjkkj32h54386tweuyfb345")); // 3u4e4

Two 、 Random alphabetic string

5、 Generate a random letter string of specified length

// 5、 Generate a random letter string of specified length 
//  amount to  random(count, true, false)
System.out.println(RandomStringUtils.randomAlphabetic(5)); // yaalN

6、 Generate a random letter string between two lengths

// 6、 Generate a random letter string between two lengths 
System.out.println(RandomStringUtils.randomAlphabetic(5, 10)); // uuIpdckTS

3、 ... and 、 Random number string

7、 Generate a random number string of specified length

// 13、 Generate a random number string of specified length 
System.out.println(RandomStringUtils.randomNumeric(5)); // 56789

8、 Generate a random number string between two lengths

// 14、 Generate a random number string between two lengths 
System.out.println(RandomStringUtils.randomNumeric(8, 16)); // 81179252

Four 、 Random alphabetic or numeric string

9、 Generate a random letter or number string of specified length

// 7、 Generate a random letter or number string of specified length 
//  amount to  random(count, true, true)
System.out.println(RandomStringUtils.randomAlphanumeric(5)); // n91KB

10、 Generate a random letter or number string between two lengths

// 8、 Generate a random letter or number string between two lengths 
System.out.println(RandomStringUtils.randomAlphanumeric(5, 10)); // vs5cw8Q

5、 ... and 、 Random ASCII Code string

11、 Generates a random of a specified length ASCII Code string

// 9、 Generates a random of a specified length  ASCII  Code string 
// ASCII  Code value between  [32,126]  Between , amount to  random(count, 32, 127, false, false)
System.out.println(RandomStringUtils.randomAscii(5)); // 7*>/#

12、 Generate random between two lengths ASCII Code string

// 10、 Generate random between two lengths  ASCII  Code string 
System.out.println(RandomStringUtils.randomAscii(8, 16)); // ;TD/+kHB2n$Dg

13、 Generate visible random of specified length ASCII Code string

// 11、 Generate visible random of specified length  ASCII  Code string 
//  That is, anything except spaces and control characters , amount to  random(count, 33, 126, false, false)
System.out.println(RandomStringUtils.randomGraph(5)); // ")N$R

14、 Generate visible random between two lengths ASCII Code string

// 12、 Generate visible random between two lengths  ASCII  Code string 
System.out.println(RandomStringUtils.randomGraph(8, 16)); // *?'u{iDDN=#{b&T

6、 ... and 、 Random string - Regular matching set

15、 Generates a random string of the specified length （ Character set matched from regular expression character class ）

// 15、 Generates a random string of the specified length （ Character set matched from regular expression character class ）
//  Select characters from the character set matched by the regular expression character class , No spaces and control characters 
System.out.println(RandomStringUtils.randomPrint(5)); // L*bh1

16、 Generate a random string between two lengths （ Character set matched from regular expression character class ）

// 16、 Generate a random string between two lengths （ Character set matched from regular expression character class ）
//  Select characters from the character set matched by the regular expression character class , No spaces and control characters 
System.out.println(RandomStringUtils.randomPrint(8, 16)); // 4D-.4V\ZH

7、 ... and 、 Complete code

package com.zibo.zibo2022.random_string_utils.main;

import org.apache.commons.lang3.RandomStringUtils;

public class Main {
    

    public static void main(String[] args) {
    
        // start
        // 1、 Generates a random string of the specified length （ All character sets except alphanumeric ）
        //  Select characters from all character sets , Excluding letters and numbers 
        System.out.println(RandomStringUtils.random(5)); // 𥘿𦊿 Way 

        // 2、 Generates a random string of the specified length （ Specify character set ）
        //  grammar ：random(int count, boolean letters, boolean numbers)
        // letters:  Alphabetic character set  numbers： Digital character set 
        //  Random strings consist of letters and numbers 
        System.out.println(RandomStringUtils.random(5, true, true)); // ny6Oh
        //  Random strings consist of letters 
        System.out.println(RandomStringUtils.random(5, true, false)); // edrYz
        //  Random strings consist of numbers 
        System.out.println(RandomStringUtils.random(5, false, true)); // edrYz
        //  A random string consists of all character sets except alphanumeric （ Equate to random(int count)）
        System.out.println(RandomStringUtils.random(5, false, false)); // ᷉줅𝥛뚣

        // 3、 Generate a random string of the specified length from the specified character set array 
        System.out.println(RandomStringUtils.random(5, 'A', 'B', '1', '2')); // 2B21B

        // 4、 Generate a string of specified length from the specified character set 
        System.out.println(RandomStringUtils.random(5, "bkjfsdhjkkj32h54386tweuyfb345")); // 3u4e4

        // 5、 Generate a random letter string of specified length 
        //  amount to  random(count, true, false)
        System.out.println(RandomStringUtils.randomAlphabetic(5)); // yaalN

        // 6、 Generate a random letter string between two lengths 
        System.out.println(RandomStringUtils.randomAlphabetic(5, 10)); // uuIpdckTS

        // 7、 Generate a random letter or number string of specified length 
        //  amount to  random(count, true, true)
        System.out.println(RandomStringUtils.randomAlphanumeric(5)); // n91KB

        // 8、 Generate a random letter or number string between two lengths 
        System.out.println(RandomStringUtils.randomAlphanumeric(5, 10)); // vs5cw8Q

        // 9、 Generates a random of a specified length  ASCII  Code string 
        // ASCII  Code value between  [32,126]  Between , amount to  random(count, 32, 127, false, false)
        System.out.println(RandomStringUtils.randomAscii(5)); // 7*>/#

        // 10、 Generate random between two lengths  ASCII  Code string 
        System.out.println(RandomStringUtils.randomAscii(8, 16)); // ;TD/+kHB2n$Dg

        // 11、 Generate visible random of specified length  ASCII  Code string 
        //  That is, anything except spaces and control characters , amount to  random(count, 33, 126, false, false)
        System.out.println(RandomStringUtils.randomGraph(5)); // ")N$R

        // 12、 Generate visible random between two lengths  ASCII  Code string 
        System.out.println(RandomStringUtils.randomGraph(8, 16)); // *?'u{iDDN=#{b&T

        // 13、 Generate a random number string of specified length 
        System.out.println(RandomStringUtils.randomNumeric(5)); // 56789

        // 14、 Generate a random number string between two lengths 
        System.out.println(RandomStringUtils.randomNumeric(8, 16)); // 81179252

        // 15、 Generates a random string of the specified length （ Character set matched from regular expression character class ）
        //  Select characters from the character set matched by the regular expression character class , No spaces and control characters 
        System.out.println(RandomStringUtils.randomPrint(5)); // L*bh1

        // 16、 Generate a random string between two lengths （ Character set matched from regular expression character class ）
        //  Select characters from the character set matched by the regular expression character class , No spaces and control characters 
        System.out.println(RandomStringUtils.randomPrint(8, 16)); // 4D-.4V\ZH
        // end
    }

}