iodemo1.java

JAVA的一些基础教程

import java.io.*;

public class IODemo1
      {
	public static void main(String arg[])
        {
		InputStream in = System.in;
		OutputStream out = System.out;
		try{
			int a =0;
			while(a != -1)
                        {
				a = in.read();
				out.write(a);
			}
		}catch(IOException e){
		}
	}
}