16. Create a program that will compute for the weight of an object weight (kg) equal to mass multiplied by gravitational pull of the earth(9.8 meter/sec).
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19. FOOD FOR THE BRAIN Displays a message with no icons YES JOptionPane.PLAIN_MESSAGE Display Questions YES JOptionPane.QUESTION_MESSAGE Warning display YES JOptionPane.WARNING_MESSAGE Information display YES JOptionPane.INFORMATION_MESSAGE Error message display YES JOptionPane.ERROR_MESSAGE DESCRIPTION ICON MESSAGE DIALOG TYPE