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 vote178 views1 answer
Define an array of size n in java
Java
0 vote201 views1 answer
Java 8 Functional Interfaces
Java
0 vote210 views1 answer
Setter getter array java
Java
1 vote209 views2 answers
Android studio java random number generator
Java
0 vote219 views1 answer
How to multiply a number by itself using for loop in java
Java
26 votes207 views4 answers
Loop list java
Java
0 vote193 views1 answer
Spring valid request body custom message
Java
0 vote181 views1 answer
Create date java
Java
0 vote226 views5 answers
Static block in java
Java
3 votes248 views2 answers
How to unistall java
Java