Data update

Task/Keyboard-input-Obtain-a-Y-or-N-response/Java/keyboard-input-obtain-a-y-or-n-response.java

@@ -0,0 +1,50 @@
+import java.awt.event.KeyEvent;
+import java.io.IOException;
+import java.awt.EventQueue;
+import java.awt.event.KeyAdapter;
+import javax.swing.JFrame;
+
+public final class KeyboardInputObtainYOrN {
+
+	public static void main(String[] aArgs) {
+		EventQueue.invokeLater( () -> { new Test("Obtain Y or N"); } );
+    }
+	
+}
+
+final class Test extends JFrame {
+	
+	public Test(String aTitle) {
+        super(aTitle);
+        addKeyListener( new YesOrNoKeyAdapter() );
+        setVisible(true);
+
+        try {
+			while ( System.in.available() > 0 ) {
+				System.in.read();
+			}
+		} catch (IOException ioe) {
+			ioe.printStackTrace();
+		}
+
+        System.out.println("Do you want to quit the program? Y / N");
+    }
+
+}
+
+final class YesOrNoKeyAdapter extends KeyAdapter {
+	
+	@Override
+    public void keyPressed(KeyEvent aKeyEvent) {
+		if ( aKeyEvent.getKeyCode() == KeyEvent.VK_Y ) {
+			System.out.println("Y was pressed, quitting the program");
+            Runtime.getRuntime().exit(0);
+        } else if ( aKeyEvent.getKeyCode() == KeyEvent.VK_N ) {
+        	System.out.println("N was pressed, but the program is about to end anyway");
+        	Runtime.getRuntime().exit(0);
+        } else {
+        	System.out.println("Please try again, only Y or N are acceptable");
+        }
+    }	
+	
+}