How to generate the random alphanumeric string in Java
In this post we will give you information about How to generate the random alphanumeric string in Java. Hear we will give you detail about How to generate the random alphanumeric string in JavaAnd how to use it also give you demo for it if it is necessary.
This below example will help you to generate a random alphanumeric string of the specific length inby using the Math.random() method in Java.
// Java programpublic class RandomString { static String getAlphaNumericString(int n) { String AlphaNumericString = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "0123456789" + "abcdefghijklmnopqrstuvxyz"; StringBuilder sb = new StringBuilder(n); for (int i = 0; i < n; i++) { int index = (int)(AlphaNumericString.length()* Math.random()); sb.append(AlphaNumericString.charAt(index)); } return sb.toString(); } public static void main(String[] args) { // printing random string of length 12 System.out.println(RandomString.getAlphaNumericString(12)); }}Output:
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