J. E. N. I.
Program berikut menunjukkan contoh penulisan terhadap file:
import java. io.*;
class WriteFile { public static void main( String args []) throws IOException { System. out. println(" What is the name of the file to be written to?"); String filename; BufferedReader br = new BufferedReader( new
InputStreamReader( System. in)); filename = br. readLine(); System. out. println(" Enter data to write to " + filename +
"..."); System. out. println(" Type q $ to end."); FileOutputStream fos = null; try { fos = new FileOutputStream( filename); } catch( FileNotFoundException ex) {
System. out. println(" File cannot be opened for writing.");
} try { boolean done = false; int data; do { data = br. read(); if(( char) data == ' q ') { data = br. read(); if(( char) data == '$') { done = true;
} else { fos. write(' q '); fos. write( data);
} } else { fos. write( data);
} } while(! done);
} catch( IOException ex) { System. out. println(" Problem in reading from the file.");
}
}
}
Pengenalan Pemrograman 2 7