filedemo4.java

JAVA程序设计课程中各章节的程序实例。

/**
*pay more attention!!!
*charater stream class through reading from and writing to a file

*/
import java.io.*;

class fileDemo4
{
	public static void main(String args[]) throws IOException
	{
		BufferedReader br1 = new BufferedReader(new InputStreamReader(System.in));
		System.out.print("Enter the file name:");
		String fname = br1.readLine();
		FileWriter fo = new FileWriter(fname);

		BufferedReader br2 = new BufferedReader(new InputStreamReader(System.in));
		String s;
		System.out.print("Enter the content of the file:");
		System.out.flush();
		s = br2.readLine();

		for(int i=0; i<s.length(); ++i)
			fo.write(s.charAt(i));

		fo.close();

		FileReader fi = new FileReader(fname);
		int read;
		System.out.print("\nIn the " + fname + " file: ");
		while((read=fi.read()) != -1)
			System.out.print((char)read);

		fi.close();
	}
}