Is there functionality to generate a random character in Java?

Question

Does Java have any functionality to generate random characters or strings? Or must one simply pick a random integer and convert that integer\'s ascii code to a character?

Answer 1

In fact mentioned methods don't generate real random char. To generate real random char you should give it a random seed! in example time in millisecond. this code generate 10 random char and then Convert it to String:

import java.util.Random;
public class MyClass {
    public static void main() {

     String randomKey;

    char[] tempArray={0,0,0,0,0,0,0,0,0,0};  //ten characters

    long seed=System.currentTimeMillis();
    Random random=new Random(seed);
    for (int aux=0; aux<10;aux++){

        tempArray[aux]=(char) random.nextInt(255);
        System.out.println(tempArray[aux]);
    }

    randomKey=String.copyValueOf(tempArray);  


      System.out.println(randomKey);
    }
}