FileOutputStream in Java Example

The FileOutputStream class is used for creating or writing into the file. For more advanced file output, we use the RandomAccessFile class. A FileOutputStream object can be created using one of the following constructors:

• FileOutputStream(String name)

• FileOutputStream(File file)

• FileOutputStream(FileDescriptor fd)

The first constructor takes a String parameter, which specifies the name of the file to be used for output. The second constructor takes a File object parameter, which specifies the output file. The third constructor takes a FileDescriptor object as its only parameter.

import java.io.*; 
 class FileOutputStreamJavaExample 
 { 
          public static void main(String args[]) throws IOException 
         { 
               int i; 
               BufferedReader vv=new BufferedReader(new InputStreamReader(System.in)); 
               FileOutputStream hh; 
                try 
                    { 
                          hh=new FileOutputStream("ecomputernotes.bat"); 
                    } 
                         catch(IOException e) 
                           { 
                               System.out.println("File can not be created"); 
                               return; 
                           } 
                               try 
                                 { 
                                     System.out.println("Enter lines of text, # to quit"); 
                                     do 
                                         { 
                                               i=vv.read(); 
                                               hh.write(i); 
                                          }while(i !='#'); 
                                  } 
                                               catch(FileNotFoundException e) 
                                            { 
                                                System.out.println("File error"); 
                                             } 
                                                 hh.close(); 
          }                                                                             
    }