fileoutputexample.java

Java课堂练习

/**
 * @(#)FileInputExp2.java
 *
 *
 * @author 
 * @version 1.00 2007/11/25
 */
import java.io.*;

public class FileOutputExample {    
     
    public static void main(String[] args) {
        // TODO code application logic here
     byte buffer[]=new byte[30];
     int b;
 try {
       	File f=new File("line.txt");
       	if (!f.exists()) {
       	  System.out.println("Creating line.txt...");
       	  f.createNewFile();
       	}
  FileOutputStream  out=new FileOutputStream(f);  
  System.out.println("please input a line of text:");
  b=System.in.read(buffer);
  out.write(buffer,0,b);  
  out.close();
   }
 catch (IOException e) {
 System.out.println("Error in write"+e); 
 }    

    }
}