Без понятия, помогите пожалуйста разобраться!
package com.javarush.task.task20.task2003;
import java.io.*;
import java.util.*;
/*
Знакомство с properties
*/
public class Solution {
public static Map<String, String> runtimeStorage = new HashMap<>();
static Properties prop = new Properties();
public static void save(OutputStream outputStream) throws Exception {
prop.putAll(runtimeStorage);
prop.store(outputStream, null);
outputStream.close();
}
public static void load(InputStream inputStream) throws Exception {
prop.load(inputStream);
Set keys = prop.keySet();
Iterator itr = keys.iterator();
while(itr.hasNext()) {
String str = (String) itr.next();
runtimeStorage.put(str, prop.getProperty(str));
}
inputStream.close();
}
public static void main(String[] args) {}
}