import java.io.File;import java.io.IOException;public class FileConstants {	public static void main(String args[]) {		System.out.println(File.separator);		System.out.println(File.separatorChar);		System.out.println(File.pathSeparator);		System.out.println(File.pathSeparatorChar);		try {			String filename = "testing.txt";			String finalfile = "";			String workingDir = System.getProperty("user.dir");			finalfile = workingDir + File.separator + filename;			System.out.println("Final filepath : " + finalfile);			File file = new File(finalfile);			if (file.createNewFile()) {				System.out.println("Done");			} else {				System.out.println("File already exists!");			}		} catch (IOException e) {			e.printStackTrace();		}				try {			 	    	  String filename = "testing.txt";	    	  String finalfile = "";	    	  String workingDir = System.getProperty("user.dir");	 	    	  String your_os = System.getProperty("os.name").toLowerCase();	    	  if(your_os.indexOf("win") >= 0){	    		  finalfile = workingDir + "\\" + filename;	    	  }else if(your_os.indexOf( "nix") >=0 || your_os.indexOf( "nux") >=0){	    		  finalfile = workingDir + "/" + filename;	    	  }else{	    		  finalfile = workingDir + "{others}" + filename;	    	  }	 	    	  System.out.println("Final filepath : " + finalfile);	    	  File file = new File(finalfile);	 		  if (file.createNewFile()){		     System.out.println("Done");		  }else{		     System.out.println("File already exists!");		  }	 	    	} catch (IOException e) {		     e.printStackTrace();		}	}}