I don't get what is it asking for.
Could you please explain the second and third requirements, thank you.
package com.codegym.task.task39.task3911;
/*
Rollback
*/
public class Solution {
public static void main(String[] args) {
/*int n = 3;
for (int i = 1; i < 7; i++) {
software.addNewVersion(i, "Description of version #" + i);
}
System.out.println("Printing all versions ");
for (Map.Entry entry : software.getVersionHistoryMap().entrySet()) {
System.out.println(entry.getKey() + " :: " + entry.getValue());
}
System.out.println("The current version is " + software.getCurrentVersion());
System.out.println("ROLLING BACK to version " + n);
software.rollback(n);
System.out.println("\nPrinting all versions ");
for (Map.Entry entry : software.getVersionHistoryMap().entrySet()) {
System.out.println(entry.getKey() + " :: " + entry.getValue());
}
System.out.println("The current version is " + software.getCurrentVersion());*/
}
}