Why isn't a program less than 10 lines very normal? Let me help you.

kider11

Nothing wrong, okay,

robinttzs

No problem with JCreator

okok02

No problem in eclipse

alading

public class QTest {
  public static void main (String [] args) throws Exception {
    int count = 0;
    System.out.println ("Please input characters, if character is 'q', quit!");
    count = System.in.read ();
    while ('q'! = (char) count) {
      System.out.println ((char) count);
    }
    
  }
}
Why can't I stop, depressed!

bevande

Press Enter after playing

dunke0921

import java.io. *;

public class Test
{
public static void main (String [] args) throws Exception
{
char c;
while (true) {
if ((c = (char) System.in.read ())! = 'q') System.out.println (c);
else break;
}
}
}

jjyhktc10

Problems with IDE tools
If you are a beginner, JCreator is recommended

4455667

while ('q'! = (char) (count = System.in.read ()))

You cannot enter a single 'q'

The input is 'q\n'