File.listRoots() will list out all the available file system roots / drives in your current system.
Example
package com.mkyong.io;
import java.io.File;
public class App{
public static void main (String args[]) {
File[] rootDrive = File.listRoots();
for(File sysDrive : rootDrive){
System.out.println("Drive : " + sysDrive);
}
}
}
Output
Drive : A:\
Drive : C:\
Drive : D:\
Drive : E:\
Your writing is very useful, thank you very much.