In what scenario would consume() restore default behavior?

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When incorporating the following code in a simple program, it stops the cursor from moving (when using the left/right arrows) when inside a cell of a JTable when in edit mode as expected.

        public void keyPressed(KeyEvent e) {  
            if ( (e.getKeyCode() == KeyEvent.VK_KP_LEFT) ||  (e.getKeyCode() == KeyEvent.VK_KP_RIGHT)  
                                    || (e.getKeyCode() == KeyEvent.VK_RIGHT) || (e.getKeyCode() == KeyEvent.VK_LEFT) )   
            {  
                //Do nothing  
                e.consume();  
            }  
        }             
    });   

Using the same code above to override different behavior in a different program there were unexpected results.

Before incorporating the code, the left/right arrow keys would move to the next cell when in edit mode. After incorporating the code above, the default behavior was restored instead of it disabling the left/right keys as in the basic sample.

Since a sample can't be provided I am wondering in what scenarios would the e.consume() restore default functionality?

asked 35 secs ago

user3601445

17