Save map to file java

// Save map in file
Map<String, String> map = new HashMap<String, String>();
Properties properties = new Properties();

for (Map.Entry<String,String> entry : map.entrySet()) {
    properties.put(entry.getKey(), entry.getValue());
}

properties.store(new FileOutputStream("data.properties"), null);

// Load the map
Map<String, String> map_from_file = new HashMap<String, String>();
Properties properties = new Properties();
properties.load(new FileInputStream("data.properties"));

for (String key : properties.stringPropertyNames()) {
   map_from_file.put(key, properties.get(key).toString());
}

Source: stackoverflow.com

Similar codes

1 vote204 views1 answer
Can you use java in unity
Java
0 vote145 views1 answer
Le but de ce sujet est d´écrire un programme JAVA pour aider à la gestion de la billeterie des différentes salles d'un complexe cinématographique. Les places non numérotées sont vendues selon deux tarif
Java
1 vote140 views1 answer
Import javax.validation.Valid error
Java
1 vote131 views1 answer
Android how to don't show keyboard
Java
0 vote139 views1 answer
Java project with submodules
Java
0 vote159 views1 answer
Line break in android xml dynamically
Java
2 votes143 views1 answer
How to make java list
Java
1 vote155 views6 answers
Insertion sorting
Java
1 vote135 views1 answer
How to extract decimal vqalue from float in android studio
Java
0 vote130 views1 answer
Printing different lines in array java
Java