Question

How to generate random digits characters in Java

Answer 1

public class MyClass {
    public static char get_random_characters(char ch1, char ch2) { 
        return (char)(ch1 + Math.random() * (ch2 - ch1 + 1)); 
    }
    public static void main(String args[]) {
       for (int i = 0; i < 20; i++) 
            System.out.println(get_random_characters('0', '9'));
    }
}


/*
run:

5
2
3
9
1
4
6
7
1
9
7
8
0
9
8
5
7
8
4
6

*/

 

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