System.in.read and System.out.print questions

Question

On the following code, two questions:
1. the output is not what I expected. Why doesn't the System.out.println(i+" "+(char)i); print everytime i press enter a character? It seems to print all at once after everything is entered.
package stars;
import java.io.*;
public class Stars {
  public static void main (String[] args) throws IOException {
    String U="";
    System.out.print("What is your name: ");
    while (true) {
      int i=System.in.read();
      U+=(char)i;
      System.out.println(i+" "+(char)i);
      System.out.flush();
      if (i==10||i==13) break;
    System.out.println("\rHello "+U);
}C:\>java -cp . stars/Stars
What is your name: blah
98 b
108 l
97 a
104 h
13
Hello blah
2. What is the most natural way to check for the press of an enter key? Is there a java attribute or method for the "Enter key" since it is different on unix and ms-dos? Thanks

Answer 1

On the following code, two questions:
1. the output is not what I expected. Why doesn't
the System.out.println(i+" "+(char)i); print
everytime i press enter a character? From:
http://scv.bu.edu/Doc/Java/tutorial/java/nutsandbolts/input.html
================
"The read() method provided by System.in reads a single character and returns either the character that was read or, if there are no more characters to be read, -1.
When a program reads from the standard input stream, the program blocks waiting for you to type something in. The program continues to wait for input until you give it some indication that the input is complete. To indicate to any program that reads from the standard input stream that you have finished entering characters, type the end-of-input character appropriate for your system at the beginning of a new line"
================
In other words, Java can't do what you want to do.
<snip>
>
2. What is the most natural way to check for the
press of an enter key? Is there a java attribute or
method for the "Enter key" since it is different on
unix and ms-dos? Thanks
System.getProperty("line.separator");Jim S.