Randomness

Main.java

package com.company;

public class Main {

    public static void main(String[] args) {

        int range = 100;
        for(int i = 1; i <= 20; i++){
            int number = (int)(range * Math.random()) + 1;
            System.out.format("%-10s", number);
            if(i % 5 == 0){
                System.out.println("");
            }
        }

    }
}