How to write and read data in a file using IO and different streams in java? -

how write , read data in file using io , different streams in java ?

i trying write data in abc.txt file whic inside file (say xyz) , using input/ output stream of byte , char stream ??

give broad explanation please ?

this have far:

import java.io.*;  class writedata1 {      public static void main(string[] args) throws ioexception {          system.out.println("tryimg write in text");          printstream ps = new printstream(system.out);          ps.println("hi");          ps.println("its show time");          ps.close();      }  } 

if using printstream should pass file argument.

   printstream ps = new printstream( new file("abc.txt"));