How to remove file path encoding %20 in java

I am tring to create a xml file in a specific path using java. Problem is if I give file path with space it is encoding with '%20' in the blank spaces. Kindly help me to solve this issue.

File path given by me - "F:/Backup Files/testng2.xml"
After encoding - "F:/Backup%20Files/testng2.xml"

Code:

 TransformerFactory transformerFactory = TransformerFactory.newInstance();
 Transformer transformer = transformerFactory.newTransformer();
 DOMSource source = new DOMSource(doc);
 StreamResult result = new StreamResult(new File("F:/Backup Files/testng2.xml"));       
 transformer.transform(source, result);
 System.out.println("File saved successfully");

Error:

javax.xml.transform.TransformerException: java.io.FileNotFoundException: F:\Backup%20Files\testng2.xml (The system cannot find the path specified)
    at org.apache.xalan.transformer.TransformerIdentityImpl.createResultContentHandler(TransformerIdentityImpl.java:297)
    at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:330)
    at FrameworkKeywords.ConfigurationFunctions.generateTestngXmlFile(ConfigurationFunctions.java:87)
    at FrameworkKeywords.ConfigurationFunctions.main(ConfigurationFunctions.java:29)
Caused by: java.io.FileNotFoundException: F:\Backup%20Files\testng2.xml (The system cannot find the path specified)
    at java.io.FileOutputStream.open0(Native Method)
    at java.io.FileOutputStream.open(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at org.apache.xalan.transformer.TransformerIdentityImpl.createResultContentHandler(TransformerIdentityImpl.java:287)
    ... 3 more
---------
java.io.FileNotFoundException: F:\Backup%20Files\testng2.xml (The system cannot find the path specified)
    at java.io.FileOutputStream.open0(Native Method)
    at java.io.FileOutputStream.open(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at java.io.FileOutputStream.<init>(Unknown Source)
    at org.apache.xalan.transformer.TransformerIdentityImpl.createResultContentHandler(TransformerIdentityImpl.java:287)
    at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:330)
    at FrameworkKeywords.ConfigurationFunctions.generateTestngXmlFile(ConfigurationFunctions.java:87)
    at FrameworkKeywords.ConfigurationFunctions.main(ConfigurationFunctions.java:29)

Try adding .getAbsolutePath() to your File, as follows:

    TransformerFactory transformerFactory = TransformerFactory.newInstance();
    Transformer transformer = transformerFactory.newTransformer();
    DOMSource source = new DOMSource(doc);
    StreamResult result = new StreamResult(new File("F:/Backup Files/testng2.xml").getAbsolutePath());        
    transformer.transform(source, result);
    System.out.println("File saved successfully");