Description: Writing small programs, in small program the window displays string "Java program design", press the arrow keys on the keyboard, can according to the arrow direction (hint: get keyboard keys e.g etKeyCode code method is (), up, down, left, right click of the coding respectively with constant VK_UP, VK_DOWN, VK_LEFT, VK_RIGHT said).
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File list (Check if you may need any files):
4\s4.class
.\s4.html
.\s4.java
4