java - flush() method of printwriter doesnt work -

i trying write file, process can read. using printwiter write file. doesnt write file long dont terminate program. have eanbles autflush on, , explicitly flusing. code below -

import java.io.filewriter; import java.io.printwriter;  public class readfile {      public static void main(string[] args) {            try {                // create print writer              filewriter fw = new filewriter("d:\\springprojects\\resciliencemodel\\natural_resource.txt");               //bufferedwriter bw = new bufferedwriter(fw);               printwriter pw = new printwriter(fw, true);                // experiment methods               while(true)               {               pw.println(99);               pw.flush();               }             } catch (exception e) {               system.out.println("exception: " + e);             }     }  } 

two issues.

1. check while(true) loop, or won't end.

2. close() handle, or won't release resources.