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  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 152
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Any Key problem in a Java App.

How can I capture a character from the user's key press without the user having to press the 'enter' key. Similar to the getch function in Turing.

This question was asked, but wasn't correctly solved.

// suggested on expert net
char ch;
ch = System.in.read();

still needs the return key to be pressed.

Nobody seems to know this.. and it seems so simple.
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tin_pham
Asked:
tin_pham
1 Solution
 
BigRatCommented:
This is perfectly correct. It assume that you are inconsole context and here the InputStream in is buffered meaning that the Return key must be pressed.
   In which context do you want a solution? Concole context or have you some GUI on the screen?
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revferretCommented:
You can implement the java.awt.event.KeyListener class.

This class has 3 methods:
public void keyPressed(java.awt.event.KeyEvent kevent);
public void keyTyped(java.awt.event.KeyEvent kevent);
public void keyReleased(java.awt.eventKeyEvent kevent);

This is how I do it and it seems to work.
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tin_phamAuthor Commented:
Thanks to everybody who attempted to solve this. I've come to the conclusion that it's not possible because of the way Java reads the input stream.

I cannot use the AWT because this is a java Application not an Applet.


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