Updating property value in properties file without deleting other values

Question

Content of First properties   name elango country india phone 12345   I want change country from india to america  This is my code   import java io    public class UpdateProperty        public static void main String args    throws Exception                   FileOutputStream out   new FileOutputStream  First properties            FileInputStream in   new FileInputStream  First properties            Properties props   new Properties            props load in           in close            props setProperty  country    america            props store out  null           out close               Output content of First properties   country america   The other properties are deleted  I want update a particular property value  without deleting the other properties

User · Answer

You can use Apache Commons Configuration library. The best part of this is, it won't even mess up the properties file and keeps it intact (even comments).

Javadoc

PropertiesConfiguration conf = new PropertiesConfiguration("propFile.properties");
conf.setProperty("key", "value");
conf.save();

User · Answer

Open the  output stream and store properties after you have closed the input stream   FileInputStream in   new FileInputStream  First properties    Properties props   new Properties    props load in   in close     FileOutputStream out   new FileOutputStream  First properties    props setProperty  country    america    props store out  null   out close

User · Answer

Properties prop   new Properties    prop load          FileInputStream  prop setProperty  key    value    prop store          FileOutputStream

[java] Updating property value in properties file without deleting other values

Examples related to java

Examples related to properties