Java generates random Numbers for alphanumeric combinations
- 2020-04-01 02:50:47
- OfStack
package com.test;
import java.util.Random;
public class GenerateRandomNumber {
public static void main(String[] args) {
System.out.println(" The generated 10 Is a random number: " + getCharAndNumr(10));
}
public static String getCharAndNumr(int length) {
String val = "";
Random random = new Random();
for (int i = 0; i < length; i++) {
//Output letters or Numbers
String charOrNum = random.nextInt(2) % 2 == 0 ? "char" : "num";
//string
if ("char".equalsIgnoreCase(charOrNum)) {
//Uppercase or lowercase
int choice = random.nextInt(2) % 2 == 0 ? 65 : 97;
val += (char) (choice + random.nextInt(26));
} else if ("num".equalsIgnoreCase(charOrNum)) { //digital
val += String.valueOf(random.nextInt(10));
}
}
return val;
}
}