generate random string in java
import java.util.Random;
public class Generator {
public static String generateRandomPassword(int len) {
String chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijk"
+"lmnopqrstuvwxyz!@#$%&";
Random rnd = new Random();
StringBuilder sb = new StringBuilder(len);
for (int i = 0; i < len; i++)
sb.append(chars.charAt(rnd.nextInt(chars.length())));
return sb.toString();
}
}java generate random string and number
import java.util.Random;
public class passGen{
// Version 1.0
private static final String dCase = "abcdefghijklmnopqrstuvwxyz";
private static final String uCase = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
private static final String sChar = "!@#$%^&*";
private static final String intChar = "0123456789";
private static Random r = new Random();
private static StringBuilder pass = new StringBuilder();
public static void main (String[] args) {
System.out.println ("Generating pass...");
while (pass.length () != 16){
int rPick = r.nextInt(4);
if (rPick == 0){
int spot = r.nextInt(26);
pass.append(dCase.charAt(spot));
} else if (rPick == 1) {
int spot = r.nextInt(26);
pass.append(uCase.charAt(spot));
} else if (rPick == 2) {
int spot = r.nextInt(8);
pass.append(sChar.charAt(spot));
} else {
int spot = r.nextInt(10);
pass.append(intChar.charAt(spot));
}
}
System.out.println ("Generated Pass: " + pass.toString());
}
}Copyright © 2021 Codeinu
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