question: public static final void readFully ( InputStream i , byte b [ ] , int off , int len ) throws IOException { if ( len < 0 ) { throw new IndexOutOfBoundsException ( ) ; } int n = 0 ; while ( n < len ) { int count = i . read ( b , off + n , len - n ) ; if ( count < 0 ) { throw new EOFException ( ) ; } n += count ; } }
target:  The read fully method from data input stream is very useful for all types of streams...