public static void printProp(Properties properties) {
    
    
    Set<Object> keys = properties.keySet();
    for (Object key : keys) {
    
    
        properties.get(key);
    }
}

public static void printProp2(Properties properties) {
    
    
    Set<Map.Entry<Object, Object>> entrySet = properties.entrySet();
    for (Map.Entry<Object, Object> entry : entrySet) {
    
    
        entry.getKey();
        entry.getValue();
    }
}

public static void printProp3(Properties properties) {
    
    
    Set<String> p = properties.stringPropertyNames();
    for (String key : p) {
    
    
        properties.getProperty(key);
    }
}

public static void printProp4(Properties properties) {
    
    
    Enumeration<?> e = properties.propertyNames();
    while (e.hasMoreElements()) {
    
    
        String key = (String) e.nextElement();
        String value = properties.getProperty(key);
    }
}