程序如下:import java.io.*;
import java.awt.*;
import java.lang.*;public class echo {
public static void main(String[] args)
throws IOException{
BufferedReader fis;
TextArea ta=new TextArea(10,50);
Frame frame = new Frame("display file data...."); fis = new BufferedReader(new FileReader("d:/java/amao.java"));
String s;
while ((s=fis.readLine())!=null)
// System.out.println(s);
ta.setText(s);
frame.add (ta);
frame.show();
}
}*/
import java.awt.*;
import java.lang.*;public class echo {
public static void main(String[] args)
throws IOException{
BufferedReader fis;
TextArea ta=new TextArea(10,50);
Frame frame = new Frame("display file data...."); fis = new BufferedReader(new FileReader("d:/java/amao.java"));
String s;
while ((s=fis.readLine())!=null)
// System.out.println(s);
ta.setText(s);
frame.add (ta);
frame.show();
}
}*/
ta.setText(ta.getText() + s);
}
frame.add (ta);
frame.show();