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

0 vote126 views1 answer
Get value from 2d array java
Java
0 vote126 views1 answer
Inline intent to jump new activity
Java
0 vote119 views1 answer
What is marshalling and unmarshalling in java
Java
20 votes138 views6 answers
Throw error java
Java
11 votes125 views6 answers
How to print in java
Java
0 vote116 views1 answer
Java string to byte array utf8
Java
5 votes102 views4 answers
Cors spring boot
Java Spring
0 vote124 views1 answer
Pioneer meaning
Java
13 votes123 views2 answers
What is junit
Java
0 vote129 views1 answer
Intellij disable welcome screen
Java