2016 Update

Task/Keyboard-input-Keypress-check/00DESCRIPTION

@@ -1,3 +1,6 @@
-Determine if a key has been pressed and store this in a variable.
-If no key has been pressed, the program should continue without waiting.
 [[user input::task| ]]
+
+Determine if a key has been pressed and store this in a variable.
+
+If no key has been pressed, the program should continue without waiting.
+<br><br>

Task/Keyboard-input-Keypress-check/Java/keyboard-input-keypress-check.java

@@ -0,0 +1,23 @@
+import java.awt.event.*;
+import javax.swing.*;
+
+public class Test extends JFrame {
+
+    Test() {
+        addKeyListener(new KeyAdapter() {
+            @Override
+            public void keyPressed(KeyEvent e) {
+                int keyCode = e.getKeyCode();
+                System.out.println(keyCode);
+            }
+        });
+    }
+
+    public static void main(String[] args) {
+        SwingUtilities.invokeLater(() -> {
+            Test f = new Test();
+            f.setFocusable(true);
+            f.setVisible(true);
+        });
+    }
+}

Task/Keyboard-input-Keypress-check/Python/keyboard-input-keypress-check.py

@@ -1,8 +1,11 @@
 #!/usr/bin/env python
 
-# this solution will work only in Windows, as msvcrt is a Windows only package
-
-import thread
+import __future__
+import sys
+if sys.version_info.major < 3:
+    import thread as _thread
+else:
+    import _thread
 import time
 
 
@@ -10,7 +13,7 @@ try:
     from msvcrt import getch  # try to import Windows version
 except ImportError:
     def getch():   # define non-Windows version
-        import sys, tty, termios
+        import tty, termios
         fd = sys.stdin.fileno()
         old_settings = termios.tcgetattr(fd)
         try:
@@ -26,11 +29,11 @@ def keypress():
     global char
     char = getch()
 
-thread.start_new_thread(keypress, ())
+_thread.start_new_thread(keypress, ())
 
 while True:
     if char is not None:
-        print "Key pressed is " + char
+        print("Key pressed is " + char.decode('utf-8'))
         break
-    print "Program is running"
+    print("Program is running")
     time.sleep(5)

Task/Keyboard-input-Keypress-check/Ruby/keyboard-input-keypress-check-1.rb

@@ -0,0 +1,7 @@
+begin
+  check = STDIN.read_nonblock(1)
+rescue IO::WaitReadable
+  check = false
+end
+
+puts check if check

Task/Keyboard-input-Keypress-check/Ruby/keyboard-input-keypress-check-2.rb

@@ -0,0 +1,3 @@
+% ruby  keypress_check.rb
+% echo  -n y | ruby keypress_check.rb
+y