generate random alphanumeric string using stringbuilder and stream

Johnico answered on August 18, 2022 Popularity 1/10 Helpfulness 1/10

answer generate random alphanumeric string using stringbuilder and stream

generate random alphanumeric string using stringbuilder and stream

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package Supplement;

import java.util.Random;
import java.util.stream.Stream;

public class StreamUtils {
	public static void main(String[] args) {
		String a = "abc1234567890";
		int b = 4;

		for(int i = 0; i <= 100; i++) {
			System.out.println(getCode(a, b));
		}


	}

	public static String getCode(String oldBncDigitsInString, int goodOleCount) {
		StringBuilder stringBuilder = new StringBuilder();
		Stream.generate(() -> new Random().nextInt(oldBncDigitsInString.length())).distinct().limit(goodOleCount)
				.forEach(i -> stringBuilder.append(oldBncDigitsInString.charAt(i)));
		return stringBuilder.toString();
	}
}

Popularity 1/10 Helpfulness 1/10 Language whatever

Source: Grepper

Tags: generate random stream using whatever

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Contributed on Aug 18 2022

Johnico

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generate random alphanumeric string using stringbuilder and stream

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