Read properties from an xml file !!

Using Properties class:

1. import java.io.File;
2. import java.io.FileInputStream;
3. import java.util.Enumeration;
4. import java.util.Properties;
5. 
   
6. public class ReadPropertiesXmlFile {
7. public static void main(String[] args) throws Exception {
8. File file = new File("D:\\prop.xml");
9. FileInputStream fileInput = new FileInputStream(file);
10. Properties properties = new Properties();
11. properties.loadFromXML(fileInput);
12. fileInput.close();
13. 
    
14. Enumeration enuKeys = properties.keys();
15. while (enuKeys.hasMoreElements()) {
16. String key = (String) enuKeys.nextElement();
17. String value = properties.getProperty(key);
18. System.out.println(key + ": " + value);
19. }
20. }
21. }

Output:
favoriteSeason: spring
favoriteDay: today
favoriteFruit: apple

prop.xml - file:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE properties SYSTEM "http://java.sun.com/dtd/properties.dtd">
<properties>
<comment>Here are some favorites</comment>
<entry key="favoriteSeason">spring</entry>
<entry key="favoriteFruit">apple</entry>
<entry key="favoriteDay">today</entry>

</properties>

Read the data from properties file !!

Using Properties class:

1. import java.io.File;
2. import java.io.FileInputStream;
3. import java.io.IOException;
4. import java.util.Enumeration;
5. import java.util.Properties;
6. 
   
7. public class ReadPropertiesFiles {
8. public static void main(String[] args) throws IOException {
9. 
   
10. File file = new File("D:\\contacts.properties");
11. FileInputStream fis = new FileInputStream(file);
12. Properties prop = new Properties();
13. prop.load(fis);
14. fis.close();
15. 
    
16. Enumeration enuKeys = prop.keys();
17. while (enuKeys.hasMoreElements()) {
18. String key = (String) enuKeys.nextElement();
19. String value = prop.getProperty(key);
20. System.out.println(key + " = " + value);
21. }
22. }
23. }

Output:
delhi = sumit
japan = chet
bangalore = raju
chennai = ishaan

Write data from properties to xml file !!

Using Properties class:

1. import java.io.File;
2. import java.io.FileOutputStream;
3. import java.util.Properties;
4. 
   
5. public class WritePropertiesXmlFile {
6. public static void main(String[] args) throws Exception {
7. Properties properties = new Properties();
8. properties.setProperty("suresh", "2000");
9. properties.setProperty("mahesh", "1200");
10. properties.setProperty("ritesh", "2100");
11. 
    
12. File file = new File("D:\\test2.xml");
13. FileOutputStream fileOut = new FileOutputStream(file);
14. properties.storeToXML(fileOut, "balance-sheet");
15. fileOut.close();
16. }
17. }

Output:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE properties SYSTEM "http://java.sun.com/dtd/properties.dtd">
<properties>
<comment>balance-sheet</comment>
<entry key="ritesh">2100</entry>
<entry key="suresh">2000</entry>
<entry key="ishaan">0000</entry>
<entry key="mahesh">1200</entry>
</properties>

Write the data in properties file !!

Using Properties class:

1. import java.io.File;
2. import java.io.FileOutputStream;
3. import java.io.IOException;
4. import java.util.Properties;
5. 
   
6. public class WritePropertiesFiles {
7. 
   
8. public static void main(String[] args) throws IOException {
9. Properties prop = new Properties();
10. prop.setProperty("bangalore", "raju");
11. prop.setProperty("delhi", "ritesh");
12. prop.setProperty("chennai", "ishaan");
13. prop.setProperty("japan", "chet");
14. 
    
15. File file = new File("D:\\contacts.properties");
16. FileOutputStream fileStream = new FileOutputStream(file);
17. prop.store(fileStream, "store the contacts");
18. fileStream.close();
19. }
20. }

Output:
#store the contacts
#Sun Apr 29 20:22:15 IST 2018
delhi=ritesh
japan=chet
chennai=ishaan
bangalore=raju